Alcohol Withdrawal Nursing Guide 2026: CIWA & DTs Management
Part of the ICU Emergencies Hub — browse every related guide in one place.
This article was created with AI assistance.
Alcohol withdrawal can be fatal. Unlike opioid withdrawal (uncomfortable but rarely deadly), severe alcohol withdrawal (delirium tremens) carries 5–15% mortality without treatment. Benzodiazepines save lives.
Alcohol Withdrawal Timeline
| Timeframe After Last Drink | Symptoms | Severity |
| 6–24 hours | Anxiety, tremors, diaphoresis, tachycardia, hypertension, insomnia, nausea | Mild to moderate |
| 12–48 hours | Alcohol withdrawal seizures (generalized tonic-clonic) | HIGH RISK WINDOW |
| 24–72 hours | Hallucinations (auditory/visual/tactile) — patient may know these are not real | Moderate to severe |
| 48–96 hours | Delirium tremens (DTs): autonomic instability, severe agitation, confusion, high fever | LIFE-THREATENING |
Ask last drink time on admission. Every patient admitted for any reason should be screened for alcohol use — withdrawal can occur unexpectedly in admitted patients who have not disclosed alcohol use.
CIWA-Ar Assessment Scale
The Clinical Institute Withdrawal Assessment for Alcohol — Revised (CIWA-Ar) is a 10-item scale scored 0–67.
| Item | Score Range | What to Assess |
| Nausea/Vomiting | 0–7 | 0=none, 4=dry heaves, 7=constant vomiting |
| Tremor | 0–7 | 0=none, 4=moderate w/ arms extended, 7=severe even at rest |
| Paroxysmal Sweats | 0–7 | 0=none, 4=beads on forehead, 7=drenching sweats |
| Anxiety | 0–7 | 0=none, 4=moderate (guarded), 7=acute panic |
| Agitation | 0–7 | 0=none, 4=moderately fidgety, 7=pacing or thrashing |
| Tactile Disturbances | 0–7 | Itching, burning, formication (bugs crawling sensation) |
| Auditory Disturbances | 0–7 | Sounds seem too harsh, or actual hallucinations |
| Visual Disturbances | 0–7 | Photophobia, blurry vision, visual hallucinations |
| Headache | 0–7 | Severity of headache |
| Orientation | 0–4 | 0=oriented, 4=oriented to person only |
CIWA Score Interpretation
| Score | Severity | Typical Action |
| <10 | Mild | Monitor q4–8h; oral lorazepam or chlordiazepoxide per protocol |
| 10–19 | Moderate | Medicate; assess q2–4h; closely monitor |
| ≥20 | Severe | IV benzodiazepines; possible ICU; frequent reassessment |
Delirium Tremens (DTs)
Delirium tremens = medical emergency. Notify MD immediately. Patient needs ICU-level monitoring and IV benzodiazepine therapy.
Classic DT Signs
- Severe agitation and confusion (hallmark)
- Hyperthermia (fever >38°C or >100.4°F)
- Tachycardia and hypertension (autonomic storm)
- Diaphoresis (profuse sweating)
- Visual and tactile hallucinations (often terrifying)
- Seizures may occur before or during DTs
Risk Factors for Severe Withdrawal
- Heavy daily drinking (>8 drinks/day)
- Prior history of DTs or withdrawal seizures
- Multiple prior withdrawal episodes
- Older age
- Concurrent medical illness or electrolyte abnormalities
Benzodiazepine Protocol
Benzodiazepines are the first-line treatment for alcohol withdrawal. They cross-react with GABA receptors and reduce the excitatory state that causes seizures and DTs.
| Drug | Route | Typical Dose | Notes |
| Lorazepam (Ativan) | IV/IM/PO | 2–4 mg q1h PRN (IV) based on CIWA | Preferred in liver disease; shorter acting |
| Diazepam (Valium) | IV/PO | 5–10 mg q1h PRN IV | Long-acting; self-tapering; use caution in liver disease |
| Chlordiazepoxide (Librium) | PO | 25–100 mg q4–6h per fixed-schedule protocol | Oral only; commonly used for mild-moderate withdrawal |
Symptom-triggered vs fixed-schedule dosing: CIWA-guided dosing (symptom-triggered) uses LESS medication overall and is preferred when nursing can assess frequently. Fixed-schedule dosing is used when assessment is unreliable (e.g., cognitive impairment).
Benzodiazepine Safety Monitoring
- Monitor respiratory rate and SpO2 after every IV dose
- Have flumazenil (Romazicon) and BVM available for respiratory depression
- Sedation scale (RASS) should be –1 to +1 target for withdrawal
- Do NOT under-dose — under-treatment leads to seizures and DTs
Thiamine & Wernicke's Encephalopathy
NEVER give glucose before thiamine in a known or suspected alcoholic patient. Giving glucose depletes the remaining thiamine and can precipitate Wernicke's encephalopathy.
Thiamine Administration
- Thiamine 100 mg IV/IM (or higher doses per protocol) given BEFORE or WITH glucose
- Most hospitals give thiamine routinely to all alcohol withdrawal patients
Wernicke's Encephalopathy — Classic Triad
- Confusion (encephalopathy)
- Oculomotor dysfunction (nystagmus, ophthalmoplegia)
- Ataxia (gait instability)
If untreated, Wernicke's can progress to Korsakoff psychosis — permanent anterograde amnesia and confabulation. Treat immediately with high-dose thiamine (500 mg IV TID) if suspected.
Other Nutritional Considerations
- Magnesium: frequently depleted; correct — low Mg perpetuates seizure risk
- Phosphate and potassium: monitor and replace
- Folate: supplement routinely
Monitoring Protocol
- Vital signs every 1–4 hours depending on CIWA score
- CIWA-Ar assessment per protocol (q4h or more frequently in severe withdrawal)
- SpO2 continuous during IV benzodiazepine therapy
- Seizure precautions: padded side rails, HOB flat or 30°, suction at bedside, call light within reach
- IV access maintained throughout withdrawal monitoring period
- Fall precautions: high fall risk throughout withdrawal period
- NPO or clear liquids if actively vomiting
- Quiet, low-stimulation environment when possible
NCLEX High-Yield Points
- Alcohol withdrawal seizures peak at 24–48 hours after last drink
- DTs peak at 48–96 hours — most dangerous phase; life-threatening
- CIWA ≥10 = give benzodiazepine; CIWA ≥20 = IV benzo, consider ICU
- Give thiamine BEFORE glucose — glucose + no thiamine = Wernicke's
- Wernicke's triad: confusion + nystagmus + ataxia
- Benzodiazepines are the ONLY proven life-saving treatment for severe alcohol withdrawal
- Unlike opioid withdrawal, alcohol withdrawal CAN be fatal — treat aggressively
Get The ICU Notebook Newsletter
Clinical tools and career insights for ICU nurses. One email per week, no fluff.
Yes, send it free
No spam. Unsubscribe any time.