CIWA-Ar Calculator
Ten item alcohol withdrawal severity score with the current monitoring bands.
What it does
Alcohol withdrawal ranges from mild shakiness to seizures and delirium tremens. The CIWA-Ar is a ten item scale that turns the observable signs into a number, so a care team can track severity, decide how often to reassess, and judge when medication is needed.
The name stands for Clinical Institute Withdrawal Assessment for Alcohol, revised. Nine of the items, including nausea, tremor, sweats, anxiety, agitation, and the sensory and headache items, are rated from 0 to 7. Orientation is rated from 0 to 4. The total runs from 0 to 67, and a score above 8 is the traditional sign that withdrawal is clinically significant.
The 2024 VA and DoD clinical practice update grouped the total into three bands: 9 or less for minimal or absent withdrawal, 10 to 19 for mild to moderate withdrawal, and 20 or more for severe withdrawal. Those bands drive how often vital signs and scores are repeated and how quickly a clinician is notified.
Scores are meant to be taken at set intervals, commonly every few hours during the first day of withdrawal and then less often as the patient settles. A single reading says less than the trend. A score climbing from 8 to 15 over two checks is a stronger signal than the same 15 as an isolated value.
The scale depends on patient report for several items. Nausea, anxiety, headache, and the sensory disturbances are described by the patient, so a drowsy, intubated, or uncooperative patient cannot be scored reliably. In those cases clinicians use other tools and judgment.
This page produces a score from the standard item definitions. It cannot examine a patient, check vital signs, or decide on treatment. Any use in a real care setting belongs with a clinician and the local withdrawal protocol, and a person with symptoms severe enough to worry about should seek urgent medical help.
How to use
- Rate each of the nine symptom items from 0 to 7 for the current state.
- Rate orientation from 0 to 4, with 4 for disorientation to place or person.
- Add the ten items for a total out of 67.
- Compare the total with the three monitoring bands.
- Repeat the score at the interval your protocol sets and compare with the trend.
- Notify a clinician when the band rises or the total passes 8.
Formula
- Symptom items
- Nausea, tremor, sweats, anxiety, agitation, tactile, auditory, visual, and headache, each 0 to 7.
- Orientation
- Clouding of sensorium, rated 0 to 4.
- Maximum
- Nine items at 7 plus orientation at 4 gives 67.
All ten items are weighted the same within their own range, and none are reverse scored. The bands used here follow the 2024 VA and DoD update: 9 or less, 10 to 19, and 20 or more. Older references sometimes use a single cutoff of 8 for treatment, which falls inside the first band.
Worked example
Example: a 9 point set
Defaults: nausea 1, tremor 1, sweats 1, anxiety 1, agitation 1, tactile 0, auditory 0, visual 0, headache 3, orientation 1.
- Add the nine 0 to 7 items: 1 + 1 + 1 + 1 + 1 + 0 + 0 + 0 + 3 = 8.
- Add orientation: 8 + 1 = 9.
- Total: 9 out of 67.
- The total sits in the 9 or less band, so withdrawal signs are minimal or absent.
- Action: follow the local monitoring protocol and reassess on schedule.
- Tool shows 9 / 67, Minimal or absent, and Follow the local monitoring protocol.
Reference table
| Score | Band | Typical action |
|---|---|---|
| 0 to 9 | Minimal or absent | Routine monitoring on the local schedule |
| 10 to 19 | Mild to moderate | More frequent checks; notify the prescriber |
| 20 to 67 | Severe | Urgent clinician review and inpatient protocol |
Limits
- Requires patient cooperation; scores from sedated or confused patients are unreliable.
- Does not replace vital signs, physical examination, or clinician judgment.
- Some items ask the patient to report symptoms, which is subjective.
- Designed for alcohol withdrawal, not for sedative, opioid, or mixed withdrawal.
Common mistakes
- Charting a score above 8 without telling the treatment team.
- Scoring once and stopping; the trend across checks is what matters.
- Treating the score as a diagnosis rather than a monitoring aid.
- Using the scale on a patient who cannot describe their symptoms.
- Mixing up the two versions of the orientation item between staff members.
Try it yourself
Quick checks. Answers sit tucked under each question.
All ten items at 0. What is the score?
0 out of 67, the minimal or absent band.
A total of 15? What band?
Mild to moderate, with more frequent checks and a call to the prescriber.
A total of 22? What band?
Severe, needing urgent clinician review under an inpatient protocol.
Questions
What is a CIWA score of 8 or more?
It is the traditional threshold for clinically significant alcohol withdrawal. The current VA and DoD bands place everything up to 9 in the minimal or absent group, with 10 to 19 mild to moderate and 20 or more severe.
What are the ten CIWA-Ar items?
Nausea and vomiting, tremor, paroxysmal sweats, anxiety, agitation, tactile disturbances, auditory disturbances, visual disturbances, headache, and orientation. The first nine score 0 to 7 and orientation scores 0 to 4.
How often should CIWA-Ar be repeated?
The interval comes from the local protocol, commonly every 2 to 4 hours at first and less often as scores fall. The trend across checks guides care more than any single score.
Can I use this calculator for myself or a family member?
It can give a rough picture of symptom severity, but withdrawal can become dangerous quickly. If symptoms are more than mild, contact a medical professional or emergency service rather than relying on the number.
Does a high score mean hospital admission?
Not by itself. The score guides how closely someone is watched and when medication is offered. Admission decisions also weigh history, vital signs, other conditions, and the ability to keep the patient safe.
Is the CIWA-Ar the same as the original CIWA?
The revised version, CIWA-Ar, is the ten item form used today. It dropped some older items that added little and is shorter to complete at the bedside.
Sources
- VA and DoD clinical practice guideline pocket card for substance use disorder stabilization
- VA VHA Notice 2024-09: management of alcohol withdrawal with updated CIWA-Ar bands
- Sullivan JT et al, assessment of alcohol withdrawal, British Journal of Addiction 1989