ABSTRACT
BACKGROUND: Hypoglycaemia is associated with morbidity and mortality in critically ill patients, and many hospitals have programmes to minimize hypoglycaemia rates. Recent studies have established the hypoglycaemic patient-day as a key metric and have published benchmark inpatient hypoglycaemia rates on the basis of point-of-care blood glucose data even though these values are prone to measurement errors. METHODS: A retrospective, cohort study including all patients admitted to Harborview Medical Center Intensive Care Units (ICUs) during 2010 and 2011 was conducted to evaluate a quality improvement programme to reduce inappropriate documentation of point-of-care blood glucose measurement errors. Laboratory Medicine point-of-care blood glucose data and patient charts were reviewed to evaluate all episodes of hypoglycaemia. RESULTS: A quality improvement intervention decreased measurement errors from 31% of hypoglycaemic (<70 mg/dL) patient-days in 2010 to 14% in 2011 (p < 0.001) and decreased the observed hypoglycaemia rate from 4.3% of ICU patient-days to 3.4% (p < 0.001). Hypoglycaemic events were frequently recurrent or prolonged (~40%), and these events are not identified by the hypoglycaemic patient-day metric, which also may be confounded by a large number of very low risk or minimally monitored patient-days. CONCLUSIONS: Documentation of point-of-care blood glucose measurement errors likely overestimates ICU hypoglycaemia rates and can be reduced by a quality improvement effort. The currently used hypoglycaemic patient-day metric does not evaluate recurrent or prolonged events that may be more likely to cause patient harm. The monitored patient-day as currently defined may not be the optimal denominator to determine inpatient hypoglycaemic risk.
Subject(s)
Blood Glucose/analysis , Critical Care , Diagnostic Errors/prevention & control , Hypoglycemia/diagnosis , Point-of-Care Systems , Academic Medical Centers , Adult , Cohort Studies , Drug Monitoring , Electronic Health Records , Humans , Hypoglycemia/blood , Hypoglycemia/epidemiology , Hypoglycemia/prevention & control , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/adverse effects , Infusions, Intravenous , Insulin/administration & dosage , Insulin/adverse effects , Intensive Care Units , Program Evaluation , Quality Improvement , Recurrence , Reproducibility of Results , Retrospective Studies , Risk , Washington/epidemiologyABSTRACT
An electronic medical record tool was developed that determines if a patient meets criteria for screening for the vaccine; it then poses a series of screening questions. Use of the tool has improved performance on pneumococcal vaccination from 44% to more than 90%, with an increase in vaccine units of 305%.