Inpatient hypertension.
Treat the patient, not the number. One question decides everything: new organ damage, or just a number? A 5-step bedside algorithm for asymptomatic inpatient BP, plus the IV dosing table for true hypertensive emergency.
Reviewed June 2026 · verify against current guidelines
Diagnosis & Workup
Step 1: Confirm the reading.
Measure correctly
Right cuff size, arm supported, patient seated and rested. Repeat before acting.
Measurement artifact to exclude
| Technique | Wrong cuff size, arm unsupported, talking, legs crossed. |
|---|---|
| Context | White coat, no rest before reading, recent activity or caffeine. |
A single high reading is not a diagnosis. Repeat before you treat.
Diagnosis & Workup
Step 2: Emergency or not?
Classification (AHA 2024)
| Elevated | SBP >130 or DBP >80 mm Hg. |
|---|---|
| Asymptomatic | SBP <180 and DBP <110. No organ damage. |
| Markedly ↑ | SBP >180 or DBP >110–120 (>120 per 2025 ACC/AHA), no damage. Now “severe HTN,” ex “urgency.” |
| Emergency | Markedly ↑ BP plus new or worsening organ damage. |
Organ damage = emergency (BARKH + heme)
| Brain | Encephalopathy, PRES, ischemic stroke, intracranial hemorrhage. |
|---|---|
| Arteries | Acute aortic syndrome: dissection, penetrating ulcer. |
| Retina | Retinal hemorrhage, papilledema. |
| Kidney | Acute kidney injury. |
| Heart | Acute coronary syndrome, acute decompensated heart failure / pulmonary edema. |
| Heme | Microangiopathic hemolytic anemia (MAHA). Added per AHA 2024 statement. |
Mild headache, anxiety, or epistaxis alone are NOT organ damage.
Confirm true injury: exam, ECG, troponin, creatinine, UA, fundoscopy.
Confirm true injury: exam, ECG, troponin, creatinine, UA, fundoscopy.
SBP systolic BPDBP diastolic BPPRES posterior reversible encephalopathy syndrome
Acute Management
Step 3: Asymptomatic path.
Less is more
Markedly elevated BP without organ damage still does not need acute treatment.
Identify and treat triggers
| Symptoms | Pain, anxiety, agitation, urinary retention. |
|---|---|
| Medications | Held home meds, steroids, NSAIDs, stimulants. |
Then
- Treat the cause: analgesia, relieve retention, hold offending drugs.
- Restart home antihypertensives first.
- Do not add IV. Do not intensify acutely.
- Document and arrange outpatient follow-up.
IV antihypertensives without an emergency cause stroke, myocardial ischemia, and acute kidney injury.
NSAID nonsteroidal anti-inflammatory drug
Acute Management
Step 4: Emergency targets.
Lower in stages (2025 ACC/AHA)
| First hour | Reduce SBP by ≤25%. Do not normalize BP. |
|---|---|
| 2–6 hours | Then to <160/100 mm Hg if stable. |
| 24–48 h | Then cautiously to 130–140 mm Hg. |
Also
- ICU with continuous BP monitoring.
- Still treat pain, agitation, volume, drugs.
Compelling conditions need tighter targets: <140 first hour, <120 in dissection (β-blocker first).
Acute Management
IV agents & doses.
IV titratable agents (2025 ACC/AHA)
| Agent | Dose & titration | Onset | Best | Avoid |
|---|---|---|---|---|
| Nicardipine | 5 mg/h; ↑ 2.5 q5–15 min (max 15) | 5–15 min | First-line; neuro, renal | Advanced aortic stenosis |
| Clevidipine | 1–2 mg/h; double q90 s (max 21, ≤72 h) | 2–4 min | First-line; rapid | Soy/egg allergy; aortic stenosis |
| Labetalol | 0.3–1 mg/kg bolus (max 300/24 h) | 5–10 min | Aortic syndrome | Asthma, HF, brady, AV block |
| Esmolol | 500–1000 mcg/kg/min ×1 min, then 50 (max 300) | 1–2 min | Rate control; aortic | Brady, AV block, HF |
| Nitroglycerin | 5 mcg/min; ↑ q3–5 min (max 200) | 2–5 min | ACS, pulmonary edema | PDE5 use; RV infarct |
| Hydralazine | 10 mg IV; repeat q4–6 h (max 220/24 h) | 10–20 min | Pregnancy (alt) | CAD, dissection (reflex tachy) |
| Enalaprilat | 1.25 mg over 5 min; up to 5 mg q6 h | 15–30 min | HF adjunct | Pregnancy, bilateral RAS, ↑K, AKI |
| Nitroprusside | 0.3–0.5 mcg/kg/min; ↑ q5 min (max 10) | Immediate | Reserve only | Renal/hepatic failure; cyanide |
Match the drug to the organ. Titrate to target, not to normal.
ACS acute coronary syndromeCAD coronary artery diseaseHF heart failureRAS renal artery stenosisPDE5 phosphodiesterase-5 inhibitorAKI acute kidney injury
Pitfalls & Disposition
Step 5: Transitions of care.
Held doses drive spikes
NPO status, transfers, and med-rec gaps stop home meds. Restart them.
Rebound risk on withdrawal
| Clonidine | Abrupt stop causes rebound surge. Taper or restart. |
|---|---|
| Beta-blocker | Withdrawal causes tachycardia, ischemia. Do not stop abruptly. |
At discharge
- Resume the home regimen.
- Do not intensify based on inpatient readings.
- Book timely outpatient follow-up.
Chasing one high number with IV or new meds is the error, not the fix.
NPO nil per os / nothing by mouthmed-rec medication reconciliation
Sources
Verify against current guidelines and local protocol before acting.
- Bress AP et al. Management of Elevated Blood Pressure in the Acute Care Setting: AHA Scientific Statement. Hypertension 2024;81(8):e94–e106.
- 2025 ACC/AHA Guideline for the Prevention, Detection, Evaluation & Management of High Blood Pressure in Adults.
- Rastogi R et al. Treatment and Outcomes of Inpatient Hypertension Among Adults With Noncardiac Admissions. JAMA Intern Med 2021;181(3):345–352.
- Anderson TS et al. Clinical Outcomes of Intensive Inpatient Blood Pressure Management in Hospitalized Older Adults. JAMA Intern Med 2023;183(7):715–723.
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