Obtaining the Best Possible Medication History at Hospital Admission: Description of a Pharmacy Technician-Driven Program to Identify Medication Discrepancies.

Purpose: Describe the process of obtaining the best possible medication history (BPMH) by Certified Pharmacy Technicians (CPhTs) on hospital admission to identify medication discrepancies.
Methods: Cross-sectional, descriptive study conducted between December 2016 and June 2017 at a quaternary center in New York, including all patients 18 years and older admitted to the medicine service through the Emergency Department (ED) and seen by a CPhT. CPhTs obtained the BPMH using a systematic approach involving a standardized interview, checking medications with secondary sources and updating the electronic health record (EHR). Medication discrepancies were identified and categorized by type and risk. Summary statistics were provided as average and standard deviation (SD) for continuous variables, and as frequencies and percentages for categorical variables. Multivariable regression was used to test for associations between patient factors and presence of a medication discrepancy.
Results: Of the 3,087 patient visits, the average age was 69 (SD 17.8), 54% were female (n = 1652) and 65% white (n = 2017); comorbidity score breakdown was: 0 (25%, n = 757), 1-2 (33%, n = 1023), 3-4 (23%, n = 699), > 4 (20%, n = 608). The average number of home and discharge medications were 10 (SD 6.1) and 10 (SD 5.4), respectively. The average time spent obtaining the BPMH was 30.6 minutes (SD 12.9). 69% of patients (n = 2130) had at least 1 discrepancy with an average of 4.2 (SD 4.6), of which 43% (n = 920) included high-risk medications. Having a medication discrepancy was associated with a higher number of home medications (p < 0.0001) comorbidities (p < 0.0001), and source of information (p < 0.04).
Conclusion: Obtaining the BPMH by CPhTs on hospital admission frequently identifies medication discrepancies. Further studies are needed to evaluate the association between obtaining the BPMH and clinical outcomes.