Alcohol Withdrawal & CIWA

Alcohol withdrawal can kill — not from the drinking, but from stopping. The CIWA-Ar protocol is how you decide who needs benzodiazepines and who doesn't. Timing is everything.

Alcohol withdrawal begins 6–24 hours after the last drink as the CNS, no longer suppressed by alcohol's GABA-enhancing effect, rebounds into hyperexcitability. Early symptoms include tremors, anxiety, diaphoresis, nausea, tachycardia, and hypertension. The Clinical Institute Withdrawal Assessment for Alcohol-Revised (CIWA-Ar) is a 10-item scored tool (max 67) that standardizes assessment. Scores below 8–10 (per institutional protocol) indicate mild withdrawal managed with supportive care. Scores 10–18 signal moderate withdrawal requiring symptom-triggered benzodiazepine dosing (typically chlordiazepoxide or lorazepam). Scores above 20 indicate severe withdrawal with seizure risk demanding aggressive pharmacologic intervention. You reassess CIWA-Ar every 1–2 hours during active withdrawal. Symptom-triggered dosing means the score drives the medication — you don't give benzos on a fixed schedule unless the patient can't be reliably assessed. Withdrawal seizures peak at 24–48 hours. This atom covers the withdrawal trajectory up to but not including delirium tremens, which is a separate, later complication.

Key Distinctions

Don't confuse symptom-triggered dosing (CIWA score drives each dose) with fixed-schedule dosing (set intervals regardless of symptoms) — symptom-triggered reduces total benzo use and shortens treatment. Students mix up the timeline: tremors and anxiety start at 6–24 hours, seizures peak at 24–48 hours, and delirium tremens emerges at 48–96 hours. A CIWA-Ar score is a nursing assessment, not a medical diagnosis — you initiate the protocol based on the score.

Clinical Pearl

CIWA under 8–10: watch. CIWA 10–18: medicate. CIWA over 20: escalate. The number tells you the next move — trust the tool, not your gut.