Four patients arrive in the ED. Which patient presentation indicates a hypertensive EMERGENCY (rather than urgency) and requires admission to the ICU for IV antihypertensive titration?
1BP 184/118 mmHg, asymptomatic, found at a community health screening. The patient has not seen a provider in 5 years.
2BP 188/120 mmHg, headache, no neurologic deficits, normal urine output, no chest pain. The patient ran out of lisinopril 4 days ago.
3BP 196/124 mmHg, sudden severe occipital headache, vomiting, blurred vision in the left eye, and confusion.✓ Correct answer
4BP 172/108 mmHg, asymptomatic, on chronic stable hypertension regimen with last clinic visit 2 weeks ago.
Explanation
Choice 3 has BP > 180/120 PLUS end-organ damage findings (severe headache, vomiting, blurred vision, confusion suggest hypertensive encephalopathy or possible intracerebral hemorrhage). This is hypertensive EMERGENCY requiring ICU admission and IV antihypertensive (e.g., nicardipine, labetalol, clevidipine) titrated to controlled BP reduction (usually no more than 25% in the first hour). Choices 1 and 2 are hypertensive URGENCY (high BP, no end-organ damage) — managed with oral agent restart and outpatient follow-up. Choice 4 has BP below 180/120 and is asymptomatic, so it is not a hypertensive crisis.
The single distinguishing feature between emergency and urgency is end-organ damage — encephalopathy, ICH, MI, dissection, AKI, papilledema, pulmonary edema, eclampsia. The number alone does not define emergency. Rapid BP drop in urgency can cause stroke; titrate carefully (no more than 25% reduction in the first hour even in true emergency).
The triage nurse evaluates 4 patients with markedly elevated blood pressure. Distinguishing hypertensive emergency (BP > 180/120 with end-organ damage) from urgency (same BP without end-organ damage) drives disposition.
Hypertensive emergency — BP > 180/120 with acute end-organ damage; ICU admission and IV antihypertensive titration.
Hypertensive urgency — Same BP elevation WITHOUT end-organ damage; oral agent and outpatient follow-up are appropriate.
IV nicardipine — Calcium channel blocker IV titrated for hypertensive emergency; controlled, predictable BP reduction.