Outcomes of a tele–intensive care unit pharmacist on the management of diabetic ketoacidosis

Abstract Purpose The tele–intensive care unit (tele-ICU) pharmacist facilitates patient-specific diabetic ketoacidosis (DKA) treatment utilizing guideline-directed therapy. This study was designed to determine how patient-specific interventions by a tele-ICU pharmacist affected patients with DKA compared to the standard of care. Methods This retrospective cohort study utilized custom reports and manual chart review to evaluate the electronic health records of patients 18 years or older who received continuous intravenous insulin and were admitted for DKA between January 2019 and December 2020. The primary endpoint was time to DKA resolution, defined by the patient meeting at least 2 of the following criteria: a serum bicarbonate concentration of at least 18 mEq/L, an arterial pH of greater than 7.3, and closure of the anion gap (less than or equal to 12 mEq/L). Results Patients treated with tele-ICU pharmacist patient-specific interventions reached DKA resolution 7.32 hours earlier than patients treated with the standard of care (22.16 vs 29.48 hours; P = 0.0019). There was no statistically significant difference between the groups for ICU length of stay, time until subcutaneous insulin administration, incidence of hypoglycemia, incidence of severe hypoglycemia, and sodium bicarbonate use. In patients who received a tele-ICU pharmacist intervention, there was a statistically significant increase in the volume for fluid resuscitation and the amount of total continuous insulin infused after ICU admission and a statistically significant reduction in the time between laboratory draws. Conclusion Treatment of patients with tele-ICU pharmacist patient-specific interventions was associated with faster DKA resolution, more frequent laboratory monitoring, and higher volumes of insulin and fluids infused than in patients treated with protocol-driven therapy.