Impact of Student Pharmacist State Anxiety on Vasopressor Calculation Accuracy in Advanced Cardiac Life Support Simulations.

OBJECTIVE: To assess the impact of student pharmacist state anxiety on vasopressor calculation accuracy in advanced cardiac life support (ACLS) simulations. METHODS: Third-year professional students participated in 2 ACLS-related simulation laboratory sessions. In week 1, students completed 3 calculations at their workstation with no stressors. Students were then randomized into teams for a bedside simulation where they independently completed 3 additional calculations either with or without stressors. Team assignments were maintained for week 2 where all participants completed a high-fidelity ACLS simulation that included a team vasopressor calculation. At both encounters, calculation accuracy was assessed as well as pre- and post-state anxiety using the Spielberger State-Trait Anxiety Inventory (STAI) survey tool. RESULTS: Students' (N = 145) trait anxiety aligned with normative data for similarly aged professional students. Post-simulation state anxiety in week 1 was found to be higher for those completing the activity with stressors than without (STAI score 44.7 vs 36.9) paired with lower bedside calculation accuracy, despite similar initial workstation calculation accuracy. In week 2, pre-simulation state anxiety score and calculation accuracy were not significantly different between the 2 groups. However, the state anxiety score significantly increased post-simulation for those exposed to stress in the previous week. CONCLUSION: Stress negatively impacted student pharmacist vasopressor calculation accuracy. However, the repeated exposure to a stressed simulation did not result in a significant difference in pre- or post-simulation state anxiety score or calculation accuracy when compared to a non-stressed control. Consideration should be made whether to include more "real-life" simulations in student pharmacist education.

Advanced cardiac life support certification for student pharmacists improves simulated patient survival.

BACKGROUND AND PURPOSE: Basic life support (BLS) and advanced cardiac life support (ACLS) skills performance, as well as simulated patient survival, were compared for student pharmacist teams with and without at least one member with American Heart Association (AHA) ACLS certification. EDUCATIONAL ACTIVITY AND SETTING: Doctor of pharmacy students in their third professional year completed a high-fidelity mannequin simulation. Within the previous year, 30 of 184 students (16%) completed ACLS certification. Rapid response teams (n = 31) of five to six members were formed through random student assignment. Two AHA instructors recorded and assessed performance using a checklist adapted from the AHA's standardized forms for BLS and ACLS assessment. Teams with and without ACLS certified members were compared for skills performance and simulated patient survival (i.e. correct performance of all BLS and ACLS skills). FINDINGS: Teams with ACLS certified members (n = 21) were superior to teams without certified members (n = 10) for correct performance of all observed BLS and ACLS skills, including pulse assessment and medication selection for cardiovascular support. For teams who had ACLS certified members, simulated patient survival was 86% higher. The study groups did not differ in their ability to calculate a correct vasopressor infusion rate if warranted. SUMMARY: BLS and ACLS skills performance were improved by AHA ACLS certification. Additionally, simulated patient survival was improved for teams with students who had at least one ACLS certified member.

Advanced Modes of Mechanical Ventilation: Introduction for the Critical Care Pharmacist.

Mechanical ventilation continues to be an evolving modality in the critical care environment. Technological advances in microprocessor-controlled ventilation integrated with the complexity of new ventilator modes has provided the multidisciplinary team opportunities to further improve the care of the critically ill ventilator patients. As members of the critical care multidisciplinary team, pharmacists require a basic understanding of both conventional and advanced modes of mechanical ventilation in order to assist in optimizing medication use and ultimately patient health-care outcomes. Pharmacists have a key responsibility to practice vigilance to maintain safe drug therapy use by preventing drug-drug or drug-disease interactions and optimal dose selection based upon pharmacokinetics and pharmacodynamics principles. Pharmacists also assist in the development of drug utilization guidelines and pharmacological ventilator-weaning protocols based upon evidence-based practice. The result of these responsibilities must include the continued longitudinal assessment and reporting of quality measures to assess ventilator weaning, time to liberation of mechanical ventilation, and length of care in intensive care unit. The purpose of this article is to provide the clinical pharmacist a guide to a basic understanding of advanced modes of mechanical ventilation in adults and to apply the knowledge gained to assist in the care of the critical care patients.

Performance and retention of basic life support skills improve with a peer-led training program.

BACKGROUND AND PURPOSE: Pharmacy students' performance and retention of Basic Life Support (BLS) skills were evaluated 120 days after completion of a peer-led BLS training program. EDUCATIONAL ACTIVITY AND SETTING: This was a single-center, parallel group, observational study. Doctor of pharmacy (PharmD) students in their third professional year completed a peer-led BLS training program (n = 148) and participated in a high-fidelity mannequin simulation activity 120 days later. Students were randomly assigned to rapid response teams (n = 24) of five to six members and the American Heart Association's standardized form for BLS assessment was used to assess BLS skills performance. The performance of skills was compared to that of students two years prior to the implementation of the peer-led BLS program. FINDINGS AND DISCUSSION: Students who received peer-led BLS training demonstrated retention of BLS skills 120 days after the BLS training program. The teams also displayed significant improvement of the skills evaluated when compared to student teams prior to implementation of the peer-led training (n = 22). Improvement was demonstrated for assessment of responsiveness (96% vs. 41%, p < 0.001), assessment for breathing (100% vs. 32%, p < 0.001), assessment for pulse (96% vs. 36%, p < 0.001), and administration of appropriate ventilation (100% vs. 32%, p < 0.001). Numerical superiority was exhibited for high-quality cardiopulmonary resuscitation (CPR) initiation by teams who received peer-led training (100% vs. 86%, p = 0.101). SUMMARY: Students who received peer-led BLS training demonstrated significant improvement in BLS skills performance and retention 120 days after the training program. Data suggests that peer-led BLS training can improve student BLS skills performance and retention.

Impact of a Pharmacist-driven Spirometry Clinic Service within a Community Family Health Center: A 5-year Retrospective Review.

OBJECTIVE: This study was designed to describe the impact of a trained pharmacist in performing quality spirometry testing within a community family health center. METHODS: This was a retrospective, cohort study of 150 physician-referred patients who attended their scheduled spirometry office appointment between November 2008 and December 2013. Information obtained included type of the disease (patients with obstructive or restrictive pulmonary disease), calculated lung age decline due to smoking history, quality of spirometry testing, and percentage of patients requiring pulmonary drug regimen alterations due to spirometry results. Pearson correlation and descriptive statistics were used to address study objectives. FINDINGS: Spirometry testing performed by a pharmacist resulted in 87% of tests meeting guidelines for quality. Testing identified patients with reversible airway disease (39%), chronic obstructive pulmonary disease (21%), restrictive (11%), and mixed obstructive/restrictive (11%) lung defect. Patients with abnormal spirometry demonstrated a greater smoking pack-year history and calculated lung age than patients with normal spirometry (29.1 pack-years vs. 17 pack-years; P = 0.024 and 76.3 years vs. 54.6 years; P < 0.001, respectively). A weak correlation was found between a 29.1 smoking pack-year history and forced vital capacity (r = -0.3593, P = 0.018). The pharmacist assisted in modifying pulmonary drug regimens in 69% of patients based on evidence-based guidelines. CONCLUSION: A pharmacist-driven spirometry service was associated with quality testing results, identified respiratory disease abnormalities, and helped modifications of pulmonary drug regimens based on evidence-based guidelines. Future direction of this service may include collaborative practice agreements with physicians to expand services of pharmacists to include spirometry testing.

Pharmacological Management and Prevention Of Exacerbations of Chronic Obstructive Pulmonary Disease in Hospitalized Patients.

Rapid-acting bronchodilators, systemic corticosteroids, and antibiotics are among the keys to managing exacerbations of chronic obstructive pulmonary disease. Preventing exacerbations should also be a component of therapy for the disease.

A systematic review of pharmacists performing obstructive sleep apnea screening services.

Background Obstructive sleep apnea (OSA) is a chronic sleep disorder associated with a varying degree of upper airway collapse during sleep. Left untreated, OSA can lead to the development of cardiovascular disease including risk of stroke and increased mortality. Pharmacists are the most accessible and underutilized healthcare resource in the community and can have a significant role in screening patients for OSA. The result may include an expedited referral to the patient's general practitioners or sleep disorder specialists for further diagnostic assessment and therapeutic intervention. Aim of the review The primary aim of this review was to identify the current published evidence of pharmacists providing OSA screening services in a community pharmacy setting. Methods A literature search was conducted to identify evidence of pharmacists providing OSA screening services. The literature search including five databases [PubMed, (1946-January 2015), Cumulative Index of Nursing and Allied Health Literature, International Pharmaceutical Abstracts (1970 to January 2015), Cochrane Database of Systematic Reviews and Google Scholar] with search terms of ("pharmacist or pharmacy") AND ("obstructive sleep apnea") AND ("sleep disorders") AND ("continuous positive airway pressure-CPAP") were used. Articles were limited to English and reported in humans. Results A total of seven publications (four Australia, two Switzerland and one France) were selected and evaluated. Pharmacists utilized validated screening tools in 6/7 (86 %) of clinical studies to assist in the identification of patients with sleep disorders in community pharmacies. A total of 1701 pharmacies encompassing 9177 patients were screened in the clinical studies. Pharmacists were able to identify between 21.4 and 67 % of patients that were at risk for developing OSA or required a referral to a general practitioner or sleep disorder specialist for further diagnostic testing. Conclusion Studies assessing the role of pharmacists performing OSA screening services remains limited due to the small number of studies available and differences in methodological assessment. More qualitative studies including randomized controlled trials are needed to better identify the value of pharmacists providing this novel service.

New Therapeutic Paradigms and Guidelines in the Management of Pulmonary Arterial Hypertension.

BACKGROUND: Recent and ongoing developments in the diagnosis, treatment, and management of pulmonary arterial hypertension (PAH) provide deeper insights into pathogenic mechanisms. Approvals of new pharmacotherapies that improve function and reduce morbidity and mortality risks; advances in clinical trial methods, including long-term, event-driven studies with clinically relevant and patient-centered endpoints; and trial results support a new therapeutic management strategy. This new paradigm involves initial treatment with combined therapies that act through different disease pathways. In addition, 2 new sets of clinical practice guidelines for PAH have been published since June 2014. Despite these advances, major gaps have been documented in the diagnosis, treatment, and management of patients with PAH. OBJECTIVE: To present current knowledge and evidence on PAH to support managed care professionals and providers in achieving accurate differential diagnosis, promptly referring patients to specialists as necessary, and ensuring that patients receive appropriate, guideline-directed therapies. SUMMARY: Major gaps in the quality of care provided to patients with PAH include oversights in clinicians' recognition of symptoms, delays in diagnosis, and misdiagnosis ensuing from incomplete evaluations, delays in referral of patients to centers of expertise and initiation of therapy, and inappropriate treatment regimens. To address deficiencies in PAH diagnosis, new practice guidelines emphasize the essential role of right heart catheterization in characterizing and confirming the disease, as well as referral to expert pulmonary hypertension centers to ensure appropriate evaluation and treatment. Updated disease and functional classifications of PAH, along with new research findings on prognostic factors and effects of comorbid conditions, offer key support for making effective therapy and management decisions for patients with PAH at different risk levels and stages of the disease. Since 2013, the U.S. Food and Drug Administration has approved new PAH therapies in the classes of endothelin receptor antagonists, guanylate cyclase stimulators, prostacyclin analogues, and prostacyclin receptor agonists. As demonstrated through phase 3 clinical trials, these generally well-tolerated therapies delay disease progression, improve hemodynamic and functional status, and decrease numbers of hospitalizations. Moreover, 2 sets of recently published guidelines-developed by the American College of Chest Physicians and the European Society of Cardiology/European Respiratory Society-provide evidence-based and expert consensus recommendations for achieving PAH treatment goals. The most recent guidelines include a recommendation for upfront combination therapy for patients with moderate disease, which is supported by new comparative clinical trial evidence. As addressed in this article, these advances in the field of PAH have important implications for managed care and clinical practice, including considerations of cost-benefit outcomes associated with different management strategies.

Pharmacists performing quality spirometry testing: an evidence based review.

BACKGROUND: The scope of pharmacist services for patients with pulmonary disease has primarily focused on drug related outcomes; however pharmacists have the ability to broaden the scope of clinical services by performing diagnostic testing including quality spirometry testing. Studies have demonstrated that pharmacists can perform quality spirometry testing based upon international guidelines. AIM OF THE REVIEW: The primary aim of this review was to assess the published evidence of pharmacists performing quality spirometry testing based upon American Thoracic Society/European Respiratory Society (ATS/ERS) guidelines. In order to accomplish this, the description of evidence and type of outcome from these services were reviewed. METHODS: A literature search was conducted using five databases [PubMed (1946-January 2015), International Pharmaceutical Abstracts (1970 to January 2015), Cumulative Index of Nursing and Allied Health Literature, Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic Reviews] with search terms including pharmacy, spirometry, pulmonary function, asthma or COPD was conducted. Searches were limited to publications in English and reported in humans. In addition, Uniform Resource Locators and Google Scholar searches were implemented to include any additional supplemental information. RESULTS: Eight studies (six prospective multi-center trials, two retrospective single center studies) were included. Pharmacists in all studies received specialized training in performing spirometry testing. Of the eight studies meeting inclusion and exclusion criteria, 8 (100%) demonstrated acceptable repeatability of spirometry testing based upon standards set by the ATS/ERS guidelines. Acceptable repeatability of seven studies ranged from 70 to 99% consistent with published data. CONCLUSION: Available evidence suggests that quality spirometry testing can be performed by pharmacists. More prospective studies are needed to add to the current evidence of quality spirometry testing performed by pharmacists and to measure health outcomes of the pulmonary patient.

Retention of advanced cardiac life support knowledge and skills following high-fidelity mannequin simulation training.

OBJECTIVE: To assess pharmacy students' ability to retain advanced cardiac life support (ACLS) knowledge and skills within 120 days of previous high-fidelity mannequin simulation training. DESIGN: Students were randomly assigned to rapid response teams of 5-6. Skills in ACLS and mannequin survival were compared between teams some members of which had simulation training 120 days earlier and teams who had not had previous training. ASSESSMENT: A checklist was used to record and assess performance in the simulations. Teams with previous simulation training (n=10) demonstrated numerical superiority to teams without previous training (n=12) for 6 out of 8 (75%) ACLS skills observed, including time calculating accurate vasopressor infusion rate (83 sec vs 113 sec; p=0.01). Mannequin survival was 37% higher for teams who had previous simulation training, but this result was not significant (70% vs 33%; p=0.20). CONCLUSION: Teams with students who had previous simulation training demonstrated numerical superiority in ACLS knowledge and skill retention within 120 days of previous training compared to those who had no previous training. Future studies are needed to add to the current evidence of pharmacy students' and practicing pharmacists' ACLS knowledge and skill retention.

Spirometry: tool for pharmacy practitioners to expand direct patient care services.

OBJECTIVES: To introduce pharmacy practitioners to spirometry testing and provide strategies for integrating this "value-added" tool with other direct patient care pharmacy services. DATA SOURCES: Spirometry literature and resources obtained through search strategies including Ovid, PubMed, and Google Scholar. SUMMARY: Pharmacists are distinctive members of the multidisciplinary patient care team and can contribute by performing spirometry services for pulmonary patients. Pharmacists have been largely absent from performing this much needed service, perhaps as a result of lack of training or because this testing may be perceived as irrelevant to the pharmacist scope of practice. However, pharmacists are actively integrated with many aspects of pulmonary patient care, including recommending and adjusting inhaled pharmacological agents, monitoring for potential drug-drug and drug-disease interactions, recommending smoking cessation, assessing patient prescription insurance coverage, and educating patients, caregivers, and health care providers on use of prescribed respiratory delivery devices. Adding quality spirometry services, based on American Thoracic Society guidelines for accuracy, would increase the breadth and depth of services for pharmacy practitioners. CONCLUSION: Spirometry testing is an added tool for expanding direct patient care pharmacy services. Physician support, appropriate pharmacist training, and understanding of reimbursement of spirometry services are essential in providing quality spirometry testing. Future studies are needed to assess the role of pharmacists in performing spirometry and measuring the performance outcomes of pulmonary patients.

Immunoassay cross-reactivity of phenylephrine and methamphetamine.

Phenylephrine, an α(1) -adrenergic agonist, and methamphetamine, a prescription drug and substance of abuse, have similar chemical structures and thus have the potential to cross-react in qualitative screening tools such as a urine drug screening (UDS) performed by immunoassay. This cross-reactivity may yield a false-positive result that may affect the provision of care in certain patient populations and clinical situations. We describe a 36-year-old woman with confirmed brain death after a short hospital stay who had an initial UDS that was negative for methamphetamine. The patient was assessed for potential organ donation, which included obtaining a follow-up UDS. A urine sample was obtained after being hospitalized for 36 hours, which tested positive for methamphetamine, with no suspected ingestion of the target substance. Confirmatory laboratory testing indicated that intravenous phenylephrine and its metabolites were the likely cause of the false-positive UDS. However, the patient was not deemed to be a suitable candidate for organ donation, but clear documentation of the reason for denial of organ donation was not available in the patient's medical record. To our knowledge, this is the first case published in the English-language literature that describes the clinical occurrence of apparent immunoassay cross-reactivity of methamphetamine and phenylephrine that resulted in a false-positive UDS for methamphetamine. In addition, this report describes the potential implications of this situation on clinical care, including organ donation acceptance. Toxicology screening in the emergency department and intensive care unit is a tool to assist in the diagnosis of medical conditions, but it may not always be reliable. Therefore, positive immunoassay results that may change the management of a patient's condition should be quickly verified with confirmatory testing to minimize unfavorable consequences.

Assessment of a pharmacist-driven point-of-care spirometry clinic within a primary care physicians office / Evaluación de una clínica de espirometría dirigida por un farmacéutico en la consulta de un médico general

Objective: To assess value-added service of a pharmacist-driven point-of-care spirometry clinic to quantify respiratory disease abnormalities within a primary care physicians office Methods: This retrospective, cohort study was an analysis of physician referred patients who attended our spirometry clinic during 2008-2010 due to pulmonary symptoms or disease. After spirometry testing, data was collected retrospectively to include patient demographics, spirometry results, and pulmonary pharmaceutical interventions. Abnormal spirometry was identified as an obstructive and/or restrictive defect. Results: Sixty-five patients with a primary diagnosis of cough, shortness of breath, or diagnosis of asthma or chronic obstructive pulmonary disease were referred to the spirometry clinic for evaluation. A total of 51 (32 patients with normal spirometry, 19 abnormal spirometry) completed their scheduled appointment. Calculated lung age was lower in normal spirometry (58.1; SD=20 yrs) than abnormal spirometry (78.2; SD=7.5 yrs, p<0.001). Smoking pack years was also lower in normal spirometry (14.4; SD=10.7 yrs) than abnormal spirometry (32.7; SD=19.5 yrs, p=0.004). Resting oxygen saturation of the arterial blood (SaO2) was higher in normal spirometry than abnormal spirometry (98.1% vs 96.5%, p=0.016). Mean change in the forced expiratory volume in one second (FEV1) after administration of bronchodilator was greater in patients with abnormal spirometry compared with normal spirometry (10.9% vs 4.1%, p<0.001). Spirometry testing assisted in addition, discontinuation or altering pulmonary drug regimens in 41/51 patients (80%) and the need for further diagnostic testing or physician referral in 14/51 patients (27.4%). Conclusion: Implementation of a pharmacist-driven spirometry clinic is a value-added service that can be integrated with other clinical pharmacy services within the ambulatory care setting. Further studies are needed to determine the role of pharmacists in performing spirometry testing and measuring performance outcomes of the pulmonary patient (AU)

Objetivo: Evaluar el valor añadido de un servicio dirigido por un farmacéutico de una clínica rápida de espirometría para cuantificar las anomalías respiratorias en una consulta de un médico general. Métodos: Este estudio de cohorte prospectiva fue un análisis de los pacientes referidos por un médico que visitaron nuestra clínica de espirometría durante 2008-2010 debido a síntomas o enfermedad pulmonar. Después de la espirometría, se recogieron retrospectivamente los datos demográficos de los pacientes, los resultados de la espirometría y las intervenciones farmacéuticas. Se identificó una espirometría anormal cuando había una obstrucción o un defecto restrictivo. Resultados: 65 pacientes con diagnostico primario de tos, dificultad de respiratoria, o diagnóstico de asma o enfermedad pulmonar obstructiva crónica fueron referidos a la clínica de espirometría para evaluación. Un total de 51 pacientes (32 con espirometría normal y 19 con anomalías espirométricas) completó el esquema de citas. La edad pulmonar calculada fue menor en las espirometrías normales (58,1; DE=20 años) que en las anormales (78,2; DE=7,5 años; p<0,001). Los años de fumador fueron también menores en las espirometrías normales (14,4; DE=10,7 años) que en las anormales (32,7; DE=19,5 años; p=0,004). La saturación en reposo de oxígeno en la sangre arterial (SaO2) era superior en las espirometrías normales que en las anormales (98,1% vs. 96,5%, p=0,016). El cabio medio en el volumen espiratorio forzado en un segundo (FEV1) después de la administración de un broncodilatador fue mayor en pacientes con espirometría anormal comparado con las normales (10,9% vs. 4,1%; p<0,001). La espirometría ayudó en la adición, discontinuación o alteración de los tratamientos pulmonares en 41/51 pacientes (80%) y en la necesidad de pruebas posteriores o derivación al médico en 14/51 pacientes (24,4%). Conclusión: La implantación de una clínica espirométrica dirigida por un farmacéutico es un servicio de valor añadido que puede integrarse con otros servicios de farmacia clínica en los ambulatorios. Se necesitan más estudios para determinar el papel del farmacéutico realizando espirometrías y midiendo el funcionamiento de los resultados en salud de los pacientes pulmonaes (AU)

Computer-based simulation training to improve learning outcomes in mannequin-based simulation exercises.

OBJECTIVE: To assess the impact of computer-based simulation on the achievement of student learning outcomes during mannequin-based simulation. DESIGN: Participants were randomly assigned to rapid response teams of 5-6 students and then teams were randomly assigned to either a group that completed either computer-based or mannequin-based simulation cases first. In both simulations, students used their critical thinking skills and selected interventions independent of facilitator input. ASSESSMENT: A predetermined rubric was used to record and assess students' performance in the mannequin-based simulations. Feedback and student performance scores were generated by the software in the computer-based simulations. More of the teams in the group that completed the computer-based simulation before completing the mannequin-based simulation achieved the primary outcome for the exercise, which was survival of the simulated patient (41.2% vs. 5.6%). The majority of students (>90%) recommended the continuation of simulation exercises in the course. Students in both groups felt the computer-based simulation should be completed prior to the mannequin-based simulation. CONCLUSION: The use of computer-based simulation prior to mannequin-based simulation improved the achievement of learning goals and outcomes. In addition to improving participants' skills, completing the computer-based simulation first may improve participants' confidence during the more real-life setting achieved in the mannequin-based simulation.

Mechanical ventilation: introduction for the pharmacy practitioner.

Mechanical ventilation is a common therapeutic modality required for the management of patients unable to maintain adequate intrinsic ventilation and oxygenation. Mechanical ventilators can be found within various hospital and nonhospital environments (ie, nursing homes, skilled nursing facilities, and patient's home residence), but these devices generally require the skill of a multidisciplinary health care team to optimize therapeutic outcomes. Unfortunately, pharmacists have been excluded in the discussion of mechanical ventilation since this therapeutic modality may be perceived as irrelevant to drug utilization and the usual scope of practice of a hospital pharmacist. However, the pharmacist provides a crucial role as a member of the multidisciplinary team in the management of the mechanically ventilated patient by verifying accuracy of prescribed medications, providing recommendations of alternative drug selections, monitoring for drug and disease interactions, assisting in the development of institutional weaning protocols, and providing quality assessment of drug utilization. Pharmacists may be intimidated by the introduction of advanced ventilator microprocessor technology, but understanding and integrating ventilator management with the pharmacotherapeutic needs of the patient will ultimately help the pharmacist be a better qualified and respected practitioner. The goal of this article is to assist the pharmacy practitioner with a better understanding of mechanical ventilation and to apply this information to improve delivery of pharmaceutical care.

Assessment of a pharmacist-driven point-of-care spirometry clinic within a primary care physicians office.

OBJECTIVE: To assess value-added service of a pharmacist-driven point-of-care spirometry clinic to quantify respiratory disease abnormalities within a primary care physicians office. METHODS: This retrospective, cohort study was an analysis of physician referred patients who attended our spirometry clinic during 2008-2010 due to pulmonary symptoms or disease. After spirometry testing, data was collected retrospectively to include patient demographics, spirometry results, and pulmonary pharmaceutical interventions. Abnormal spirometry was identified as an obstructive and/or restrictive defect. RESULTS: Sixty-five patients with a primary diagnosis of cough, shortness of breath, or diagnosis of asthma or chronic obstructive pulmonary disease were referred to the spirometry clinic for evaluation. A total of 51 (32 patients with normal spirometry, 19 abnormal spirometry) completed their scheduled appointment. Calculated lung age was lower in normal spirometry (58.1; SD=20 yrs) than abnormal spirometry (78.2; SD=7.5 yrs, p<0.001). Smoking pack years was also lower in normal spirometry (14.4; SD=10.7 yrs) than abnormal spirometry (32.7; SD=19.5 yrs, p=0.004). Resting oxygen saturation of the arterial blood (SaO2) was higher in normal spirometry than abnormal spirometry (98.1% vs 96.5%, p=0.016). Mean change in the forced expiratory volume in one second (FEV1) after administration of bronchodilator was greater in patients with abnormal spirometry compared with normal spirometry (10.9% vs 4.1%, p<0.001). Spirometry testing assisted in addition, discontinuation or altering pulmonary drug regimens in 41/51 patients (80%) and the need for further diagnostic testing or physician referral in 14/51 patients (27.4%). CONCLUSIONS: Implementation of a pharmacist-driven spirometry clinic is a value-added service that can be integrated with other clinical pharmacy services within the ambulatory care setting. Further studies are needed to determine the role of pharmacists in performing spirometry testing and measuring performance outcomes of the pulmonary patient.

Electrolyte disturbances associated with commonly prescribed medications in the intensive care unit.

Electrolyte imbalances are common in critically ill patients. Although multiple disease states typically encountered in the intensive care unit may be responsible for the development of electrolyte disorders, medications may contribute to these disturbances as well. Medications can interfere with the absorption of electrolytes, alter hormonal responses affecting homeostasis, as well as directly impact organ function responsible for maintaining electrolyte balance. The focus on this review is to identify commonly prescribed medications in the intensive care unit and potential electrolyte disturbances that may occur as a result of their use. This review will also discuss the postulated mechanisms associated with these drug-induced disorders. The specific drug-induced electrolyte disorders discussed in this review involve abnormalities in sodium, potassium, calcium, phosphate, and magnesium. Clinicians encountering electrolyte disturbances should be vigilant in monitoring the patient's medications as a potential etiology. Insight into these drug-induced disorders should allow the clinician to provide optimal medical management for the critically ill patient, thus improving overall healthcare outcomes.

Hyponatremia: current treatment strategies and the role of vasopressin antagonists.

OBJECTIVE: Hyponatremia is a complex electrolyte disorder that results mainly from dysregulation of arginine vasopressin (AVP) by osmotic and nonosmotic mechanisms. Several populations, including the elderly, are at risk for the development of hyponatremia, and awareness of such risk factors can lead to an overall improvement in patient care. AVP receptor antagonists are promising new therapeutic options whose safety and efficacy have been clinically established for some forms of hyponatremia. DATA SOURCES: A search of MEDLINE (1967-March 2007) was conducted, using the search terms aquaporins, AVP, AVP receptor antagonists, conivaptan, hyponatremia, lixivaptan, and tolvaptan. Additionally, data were obtained from manufacturers' prescribing information. STUDY SELECTION AND DATA EXTRACTION: All articles identified from the reference search and data sources were evaluated. Material was included in this review if it was relevant to the pathophysiology and management of euvolemic and hypervolemic hyponatremia in hospitalized patients. DATA SYNTHESIS: A large percentage of hospitalized patients are found to have symptomatic or asymptomatic hyponatremia. One study reported that 24.5% of intensive care patients admitted over a 3 month period experienced hyponatremia at some time during their hospitalization. Conventional management techniques include water restriction, demeclocycline, lithium, and urea, which have demonstrated variable efficacy and toxicity. AVP receptor antagonists, whose safety and efficacy have been established in clinical trials, are providing new therapeutic options. CONCLUSIONS: AVP receptor antagonists appear to be safe and effective for the treatment of patients with hyponatremia. With conivaptan recently approved by the Food and Drug Administration for use in treating euvolemic and hypervolemic hyponatremia in hospitalized patients and lixivaptan and tolvaptan in the late stages of development, prudent use of these agents requires a thorough understanding of the clinical manifestations of hyponatremia to optimize therapeutic outcomes.

Mechanical ventilation: a tutorial for pharmacists.

Mechanical ventilation is an integral part of the critical care environment and requires orchestration by a multidisciplinary team of clinicians to optimize therapeutic outcomes. By tradition, pharmacists have not been included on this team since this therapeutic modality is not considered relevant to their scope of practice. However, pharmacists play a critical role in the management of patients receiving mechanical ventilation by assisting in the development of institutional guidelines and protocols, by maintaining accuracy of prescribed drug dosages, by monitoring for drug-drug and drug-disease interactions, by assisting with alternative drug selections, and by maintaining continued quality assessment of drug administration. Pharmacists able to understand and integrate mechanical ventilation with the pharmacotherapeutic needs of patients are better qualified practitioners. The goal of this article is to help clinical pharmacists better understand the complexities of mechanical ventilation and to apply this information in optimizing delivery of pharmaceutical agents to critical care patients.