MedBalans

Hypertensive Crisis

Adults · emergency only · brief protocol

Algorithm

  1. Distinguish hypertensive urgency (no acute end-organ damage) vs emergency (end-organ damage).
  2. Emergency: IV antihypertensive in monitored setting — gradual reduction, not rapid normalization.
  3. Target: reduce MAP by 10–20% in first hour; avoid drops >25% in first 24 h.
  4. Identify and treat cause: renal, pregnancy, drugs, pheochromocytoma.
  5. Urgency: oral agents, outpatient follow-up — avoid IV in ED without damage.

Red flags

  • • End-organ damage (ACS, encephalopathy, aortic dissection, AKI)
  • • Pregnancy — use obstetric hypertension pathway
  • • Do not drop BP too fast in chronic HTN without acute target-organ injury

Medications by step

Step 1 — IV first-line

  • Labetalol · i.v.

    20 mg IV bolus; repeat q10 min (max 300 mg)

  • Nicardipine · i.v. infusion

    5 mg/h IV infusion; titrate

Step 2 — Oral step-down

  • Amlodipine · p.o.

    5–10 mg PO daily when stable

References

  • • ESC/ESH — Hypertension guidelines (2023)

Updated: Июль 2026