Design and implementation of curriculum change.

In this paper, the authors propose adapting a four-stage model to design, implement and evaluate change in the curriculum for the degree of Doctor of Veterinary Medicine. For each stage, a relevant case study is presented to illustrate the application of the model. Factors facilitating change are described, as well as barriers to change. Strategies to overcome such barriers and the applicability of this model to other disciplines are also provided.

Veterinary school admission interviews, part 2: survey of North American schools.

A study of veterinary school admission interview practices across the USA and Canada was conducted in 1999. All 31 schools responded. INTERVIEW USE: Eighty-four percent of the veterinary schools interview applicants. Veterinary schools are more likely to interview resident than non-resident applicants (62% interviewed >or=49% of their resident applicants, while 77% interviewed or=77%). The five most common characteristics and skills the veterinary admission interview is intended to assess are communication skills, maturity, motivation for and interest in veterinary medicine, interpersonal skills, and knowledge of the veterinary profession (>or=92%). The least common characteristic or skill the veterinary admission interview is intended to assess is academic performance (23%). INTERVIEW FORMAT: Veterinary schools are most likely to offer one interview to a candidate (83%). A panel interview with between two and three interviewers is the predominant format employed (92%). The interview is of 20-45 minutes duration (88%), most commonly 30 minutes (50%). Interview questions most often address experiences in veterinary medicine, general background, and strengths and weaknesses (>or=85%). The level of interview structure is low to moderate (73%). The cold or blind interview (where interviewers are denied access to all or part of the written application) is employed by 50% of the interviewing veterinary schools. INTERVIEWERS: Interviewing veterinary schools assign interviewing to faculty veterinarians (100%). Some level of interviewer training is usually provided (87%); the most common mode of training is distribution of printed material (86%). SUMMARY AND RECOMMENDATIONS: The veterinary admissions interview is similar to that employed by schools of medicine, optometry, and dentistry, with the exception that veterinary schools are more likely to use panel interviews, to fix the interview weight in selection decisions, and to employ a cold or blind interview (these differences provide an opportunity to increase interview reliability and validity). Interview reliability and validity can be further improved by increasing interviewer training and interview structure, ensuring that the interview's format is consistent with its purpose, and identifying behavioral characteristics that are consistent with successful practice.

Veterinary school admission interviews, part 1: literature overview.

An analysis of the admission interview used by schools in four health professions (veterinary medicine, allopathic medicine, optometry, and dentistry) portrays a largely similar approach to selection interviews: INTERVIEW USE: At least 80% of schools interview applicants. For schools that offer interviews, at least 40% of candidates are interviewed (a strong academic profile is the number one determinant of receiving an interview offer). The interview is one of the three most important selection tools used by schools. Less than 26% of schools fix the interview's weight in the selection process (fixed weights range from 31% to 35%). INTERVIEW PURPOSE AND CONTENT: The most common purposes of the interview are to (1) gather information, (2) make decisions, (3) verify information provided in other parts of the application, (4) recruit candidates, and/or (5) promote public relations. The most common characteristics and skills interviewers are interested in assessing are motivation for the profession, interpersonal skills, and communication skills. The desire to assess cognitive ability with the interview (>25% of schools) is surprising in view of the use of other selection tools (e.g., GPA). INTERVIEW FORMAT: Medical schools are more likely to offer two interviews per candidate, while optometry schools are more likely to offer one interview per candidate. Individual interviews (one interviewer, one candidate) are the predominant format among medical schools, while panel interviews (more than one interviewer, one candidate) are the most common format among optometry schools. The duration of the interview is 30 to 45 minutes. Interview questions most often address facts and knowledge, hypothetical situations, and the ability to meet program requirements. Most interviews do not meet the criteria for a structured interview, which has demonstrated greater validity and reliability than semi-structured or unstructured interviews. INTERVIEWERS: Interviewers are most likely to be health care faculty members (e.g., veterinarians at a veterinary school). Interviewers receive limited training. RECOMMENDATIONS FOR INCREASING INTERVIEW RELIABILITY AND VALIDITY: The purpose(s) of the interview must be clearly articulated so that the interview and interviewer training can be designed to achieve that purpose. Interview structure should be increased by developing a "job analysis" set of questions that is posed to all candidates and scored using behavioral anchors. Interviewers should receive more training in rater bias, listening skills, and interview structure. Panel interviews should be used to increase reliability. Interviewers should not have access to the candidate's application unless the interview is used to verify information. To increase the utility of the interview in the selection process, the weight of the interview in relation to other selection components should be determined.

Evaluation of a method using Proteus mirabilis and Pseudomonas aeruginosa to experimentally induce dual infection of the urinary bladder in dogs.

OBJECTIVE: To evaluate a method using Proteus mirabilis and Pseudomonas aeruginosa to experimentally induce dual infection of the urinary bladder in dogs. ANIMALS: 6 healthy mixed-breed dogs. PROCEDURE: Dogs were anesthetized, and cystitis was induced by infusing a solution of salicylic acid in ethanol into the bladder, followed by an inoculum containing field isolates of P. mirabilis and P. aeruginosa. Dogs were examined daily for 21 days after induction of cystitis. On day 21, dogs were euthanatized, and urinary bladder, renal pelvis, and prostate specimens were submitted for bacterial culture. RESULTS: After induction of cystitis, all dogs had evidence of thickening of the bladder wall, dysuria, tenesmus, and hematuria. Urinalysis revealed proteinuria, hematuria, and pyuria. All urine samples obtained on day 21 yielded growth of P. mirabilis, but P. aeruginosa was not cultured from any of these samples. Proteus mirabilis was isolated from bladder, renal pelvis, or prostate specimens from 4 dogs; P. aeruginosa was not isolated from any of the tissue specimens. CONCLUSION: Results suggest that the method used in the present study fails to induce dual infection of the urinary bladder with P. mirabilis and P. aeruginosa. The inability to establish a persistent dual infection with this method may have been a result of insufficient pathogenicity of the Pseudomonas isolate or an inadequacy of the experimental design.

Quantitative urinalysis in kittens from four to thirty weeks after birth.

To evaluate renal function and obtain reference values for measurements of urinary excretion of various substances, quantitative urinalysis was performed in healthy, growing kittens from 4 to 30 weeks after birth. Endogenous creatinine clearance, 24-hour urine protein excretion, and urine protein-to-creatinine ratio were determined. Additionally, fractional excretion to creatinine clearance was calculated for calcium, inorganic phosphorus, sodium, potassium, and chloride. Mean +/- SD endogenous creatinine clearance values (range, 3.80 +/- 0.48 to 4.74 +/- 0.61 ml/min/kg) were significantly (P less than 0.0001) higher in kittens 9 to 19 weeks old, compared with younger (range, 1.39 +/- 0.85 to 3.59 +/- 0.86 ml/min/kg) and older kittens (range, 2.69 +/- 0.40 to 3.46 +/- 0.37 ml/min/kg). Mean values for all kittens for 24-hour urine protein excretion (range, 2.54 +/- 1.81 mg/kg at 4 weeks to 11.39 +/- 7.61 mg/kg at 14 weeks) and for urine protein-to-creatinine ratio (range, 0.14 +/- 0.03 to 0.34 +/- 0.18) varied from week to week of age. The urine protein-to-creatinine ratio in kittens greater than or equal to 9 weeks old correlated well (R2 = 0.861) with 24-hour urine protein excretion. Urinary fractional excretion of calcium, inorganic phosphorus, sodium, potassium, and chloride in kittens varied among age groups, being significantly (P less than 0.01) different for potassium and calcium in young kittens (4 to 6 weeks) and older kittens (greater than or equal to 7 weeks).

Peanut agglutinin as a surface marker for canine T lymphocytes.

Peanut agglutinin (PNA) and surface immunoglobulin (SIg) were investigated as markers for T and B lymphocytes in blood and lymphoid tissues of dogs of various ages. In the blood study, 4 age groups (n = 8 dogs/group) were used. The mean (+/- SD) percentages of PNA-positive (PNA+) cells were 68.4 +/- 8.6% (group 1, less than 1 year old), 70.3 +/- 9.2% (group 2, 1 to 2 years old), 72.0 +/- 3.7% (group 3, 5 to 6 years old), and 63.8 +/- 10.1% (group 4, 10 to 11 years old). The mean percentages of SIg-positive (SIg+) cells in blood were 32.1 +/- 10.6% (group 1), 43.2 +/- 7.0% (group 2), 34.3 +/- 4.8% (group 3), and 35.0 +/- 6.8% (group 4). The mean total percentages of PNA+ and SIg+ cells were 100 +/- 6.0% (group 1), 113.5 +/- 4.9% (group 2), 106.3 +/- 5.3% (group 3), and 98.9 +/- 9.2% (group 4). The proportions of PNA+ and SIg+ cells in dogs of group 2 were significantly (P less than 0.05) different from those in dogs of the other groups. Serial changes in PNA+ and SIg+ cells were investigated in blood of 6- to 29-week-old pups (n = 8). A significant (P less than 0.05) transient decrease in PNA+ cells and a corresponding increase in SIg+ cells was observed in pups between 14 and 17 weeks old. Lymphoid tissue specimens and blood samples were obtained from 2- to 6-month-old dogs (n = 11) and from 6- to 12-month-old dogs (n = 10).(ABSTRACT TRUNCATED AT 250 WORDS)

Temporal study of staphylococcal species on healthy dogs.

During a 1-year period, specimens were obtained monthly from 5 hair coat and 7 mucous membrane sites of 11 healthy dogs. Among 804 isolates of staphylococci, 13 species were identified. Staphylococcus intermedius was the most frequently isolated (40.2% of total isolates) coagulase-positive species, and S xylosus was the most frequently isolated (17.3%) coagulase-negative species. Moreover, S intermedius was the most frequently isolated species from the 12 sites evaluated and was isolated persistently from 8 of the 9 dogs that completed the 1-year study. On the basis of a commercial identification system, 14 profile numbers were identified for isolates of S intermedius. However, 2 profile numbers accounted for a majority (70.9%) of the isolates. Specific S intermedius biotypes identified on the basis of hemolysis, coagulase production, beta-lactamase activity, and antimicrobial susceptibility patterns were found repeatedly in 3 dogs. Seemingly, S intermedius was a resident of the normal bacterial microflora of these dogs; however, the inability to isolate S intermedius from 1 dog during the study year indicated that not all dogs harbor S intermedius as a resident microorganism.

Cryptosporidiosis associated with immunosuppression attributable to distemper in a pup.

Cryptosporidiosis, giardiasis, trichomoniasis, and distemper were diagnosed in a 6-month-old female Siberian Husky pup. Poor growth rate, mucopurulent ocular and nasal discharges, and diarrhea were observed. Results of immunologic studies revealed decreased serum IgG concentration and undetectable serum IgA concentration. Cultured lymphocytes yielded a less-than-adequate response to mitogen stimulation. The serum also contained a factor that suppressed mitogen stimulation in control cultured lymphocytes.

Survival of a dog with pneumonia caused by Mycobacterium fortuitum.

Pneumonia caused by Mycobacterium fortuitum was diagnosed in the left lung lobes of a 3-year-old male Samoyed. Unilateral pneumonectomy and antibiotic treatment (primarily amoxicillin trihydrate-clavulanate potassium and kanamycin) were associated with resolution of the pneumonia. In dogs, M fortuitum causes pulmonary disease that radiographically resembles bacterial pneumonia. Therefore, M fortuitum infection should be considered in dogs with radiographic signs of bronchopneumonia that worsen despite antibiotic treatment.

Evaluation of gamma-glutamyl transpeptidase-to-creatinine ratio from spot samples of urine supernatant, as an indicator of urinary enzyme excretion in dogs.

gamma-Glutamyl transpeptidase activity was measured accurately in canine urine supernatant without gel filtration and was relatively stable at 4 C for at least 4 days after collection. The urinary gamma-glutamyl transpeptidase-to-creatinine ratio in spot samples was simple and quick to measure and was correlated with the 24-hour enzyme excretion. However, the usefulness of this ratio may be limited by within-day variation, and a questionable theoretical basis for its validity.

Comparison of single-dose and conventional trimethoprim-sulfadiazine therapy in experimental Staphylococcus intermedius cystitis in the female dog.

Cystitis was produced in 4 groups of 6 female dogs each, using salicylic acid, ethanol, and Staphylococcus intermedius. Group-I dogs served as nontreated controls. Starting 2 days after infection was induced, group-II dogs were treated with trimethoprim-sulfadiazine at a dosage of 15 mg/kg given orally 2 times a day for 21 days; groups-III and -IV dogs were treated with single oral dosages of the antibiotic at 60 mg/kg and 90 mg/kg, respectively. Group-I dogs (controls) remained infected for the 26-day duration of the study. The response to therapy seen in group-II dogs was better than the therapeutic responses in groups-III and -IV dogs (P less than 0.05). Results of the present study do not support the efficacy of single-dose therapy for this model of cystitis.

Diskospondylitis in a kennel of dogs: clinicopathologic findings.

Selected aspects pertaining to the cause and pathogenesis of diskospondylitis were investigated in a kennel of 45 Airedale Terriers. Diskospondylitis was detected via spinal radiography in 17 male and 14 female dogs. Bacteria isolated from the coat, vagina, and urine of affected Airedales were not statistically different from those isolated from clinically normal Airedales. Serologic evidence of Brucella canis infection was not detected. There was no difference in response to thyrotropin stimulation tests between affected and clinically normal dogs. Necropsy findings in affected dogs included hypercellular renal glomeruli and pulmonary arterial thrombi.

Urinary gamma-glutamyl transpeptidase activity in dogs with gentamicin-induced nephrotoxicity.

Serum creatinine concentrations, 24-hour endogenous creatinine clearance, and 24-hour urinary gamma-glutamyl transpeptidase (UGGT) activity were measured daily in 6 dogs given nephrotoxic dosages of gentamicin (10 mg/kg of body weight) every 8 hours for 10 days. Mean UGGT activity was significantly increased by day 5 (P less than 0.05) and preceded significant increases in serum creatinine values (greater than 2.0 mg/dl) observed on day 9. Endogenous creatinine clearance remained within normal limits (2.98 +/- 0.96 ml/min/kg) until day 8. Urinalyses performed 8 days after initiation of gentamicin treatment indicated renal tubular damage (granular casts) in 1 of the 6 dogs, and glucosuria in 3 of the 6 dogs. Measurement of UGGT activity was a more sensitive and reliable method of assessing acute renal tubular damage induced by gentamicin than were serum creatinine concentrations or 24-hour endogenous creatinine clearance.

Distribution of staphylococcal species on clinically healthy cats.

Among 827 isolates derived from 113 clinically healthy cats, 12 species of staphylococci were identified. Staphylococci were isolated from each cat and from 54.9% of the anatomic sites evaluated. A mode of 6 (range = 2 to 11) of the 11 anatomic sites evaluated per cat yielded staphylococci. A mode of 8 (range = 2 to 12) isolates were found per cat. Staphylococcus simulans was the most isolated (43.9% of total) coagulase-negative species. Moreover, S simulans was the most isolated species from each of the 11 sites evaluated and, except for the mouth and haircoat, comprised greater than 50% of the isolates from each site. Staphylococcus intermedius was the most isolated (13.5% of the total) coagulase-positive species. Three other species (S epidermidis, S xylosus, and S aureus) comprised 32.2% of the isolates, and 7 species (S haemolyticus, S hominis, S hyicus, S capitis, S warneri, and S saprophyticus) comprised 10.4% of the isolates. Six species (S intermedius [96 of 112 isolates], S haemolyticus [20 of 22], S sciuri [17 of 18], S warneri [10 of 13], S hyicus [10 of 10], and S capitis [7 of 8]) were isolated primarily from household cats. Only 1 species, S xylosus (75 of 87), was isolated primarily from cattery cats. Haircoat specimens (n = 452) yielded 508 isolates (61.4% of the total) distributed among all 12 staphylococcal species and included greater than 50% of the isolates of all species other than S simulans and S sciuri. A more heterogeneous population of staphylococci was isolated from household cats than was isolated from cattery cats.

Blastogenesis-suppressing serum factors, decreased immunoglobulin A, and increased beta 1-globulins in Airedale Terriers with diskospondylitis.

In Airedale Terriers with diskospondylitis, immunologic tests revealed heat-stable blastogenesis-suppressing serum factors affecting primarily the effector (phytohemagglutinin-sensitive) lymphocytes; decreased serum concentrations of immunoglobulin A; and increased serum concentrations of undetermined beta 1-globulins. Data indicated that the dogs had decreased immunoglobulin A production and were immunosuppressed, which probably contributed to penetration of bacteria into the body and subsequent spreading to the disks. Eosinophilia and basophilia were also detected, which indicated a potential for a type-I hypersensitivity reaction that may have ameliorated the inflammatory reaction.