What does CIWA-Ar stand for?

CIWA-Ar stands for Clinical Institute Withdrawal Assessment for Alcohol, Revised. It is a shortened revision of the original CIWA-A scale, validated for rapid bedside use.

What is the maximum possible CIWA-Ar score?

The maximum is 67. Nine items are scored 0–7 (subtotal 63) and one item — orientation/clouding of sensorium — is scored 0–4, giving 63 + 4 = 67.

At what score is hospital admission typically recommended?

A score of 16 or higher indicates severe withdrawal with high risk for seizures and alcohol withdrawal delirium (delirium tremens). Inpatient admission and close monitoring are generally recommended. Clinical judgment and patient history must guide the final decision.

How often should the CIWA-Ar be repeated?

Frequency varies by protocol and severity. Common practice is every 1 hour in the acute phase for scores ≥10, and every 4–8 hours for lower scores. Follow your institutional protocol.

Does this tool replace clinical assessment?

No. This calculator is for educational and informational purposes only. All clinical decisions — including medication choice, dose, and disposition — must be made by a qualified healthcare professional using the full clinical picture.

CIWA-Ar Alcohol Withdrawal Scale

Score all 10 CIWA-Ar items to get a total (0–67) and a severity band: mild (≤8), moderate (9–15), or severe (≥16).

CIWA-Ar Assessment

Score each item. Items 1–9: 0–7. Item 10 (orientation): 0–4. Total updates instantly.

1. Nausea / Vomiting –

2. Tremor (arms extended, fingers spread) –

3. Paroxysmal Sweats –

4. Anxiety –

5. Agitation –

6. Tactile Disturbances –

7. Auditory Disturbances –

8. Visual Disturbances –

9. Headache / Fullness in Head (do not rate dizziness) –

10. Orientation / Clouding of Sensorium (0–4) –

Score all 10 items to see your CIWA-Ar result.

For educational and informational use only. All clinical decisions — including pharmacotherapy, dose, and disposition — must be made by a qualified healthcare professional using the full clinical context.

Summary

The CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol, Revised) is the most widely used validated tool for quantifying alcohol withdrawal severity at the bedside. It rates 10 signs and symptoms — nausea/vomiting, tremor, paroxysmal sweats, anxiety, agitation, tactile disturbances, auditory disturbances, visual disturbances, headache/fullness in head, and orientation/clouding of sensorium — each on a 0–7 scale except orientation (0–4), giving a maximum total of 67. Scores guide management: ≤8 mild (outpatient may be appropriate), 9–15 moderate (pharmacotherapy typically indicated), ≥16 severe (high risk for seizures and delirium tremens, inpatient admission recommended).

How it works

Assess the patient and select the score for each of the 10 CIWA-Ar items.
Items 1–9 are rated 0–7; item 10 (orientation/clouding of sensorium) is rated 0–4.
The calculator sums all items in real time to produce a total CIWA-Ar score (0–67).
The result panel shows the severity band and standard management guidance.
Reassess every 1–4 hours or per institutional protocol to track symptom progression.

Use cases

Bedside assessment of alcohol withdrawal severity in the emergency department or inpatient setting.
Determining the need for pharmacological treatment (e.g., benzodiazepines) and dosing frequency.
Deciding between outpatient detoxification and hospital admission.
Serial monitoring of withdrawal symptom trajectory over time.
Medical education on structured alcohol withdrawal assessment.

Frequently Asked Questions

Last updated: 2026-06-15 · Reviewed by Nham Vu