Overgaauw N, et al. - Researchers prospectively quantified the role of drug nonadherence in the development of hypertensive urgency and hypertensive emergency. For this purpose, they retrospectively compared features of patients with hypertensive urgency and hypertensive emergency. For patients with systolic blood pressure levels of at least 180 mmHg and diastolic blood pressure levels of at least 110 mmHg who visited the emergency department between 2012 and 2015, they retrospectively examined clinical data. Prospective evaluation of patients admitted to the emergency department with severely elevated BP was also carried out. Nonadherence accounted for hypertensive urgency or hypertensive emergency in 6.3% of the study sample. Frequent emergency department admissions due to hypertensive urgency and hypertensive emergency were common. To optimize treatment strategy, the investigators suggested evaluating drug adherence during the workup of patients with a hypertensive urgency or hypertensive emergency.