Clinical Contributor: Connor Simmons, RN, Nursing Director
Medical Director: Eric Chaghouri, MD — Double Board-Certified in Psychiatry and Addiction Medicine
Last Updated: September 23, 2026
The CIWA scale is a 10-item clinical assessment used to measure the severity of alcohol withdrawal. The revised version, known as the CIWA-Ar, helps medical teams track how withdrawal symptoms change throughout detox.
CIWA stands for Clinical Institute Withdrawal Assessment for Alcohol.
At The Retreat at Orange County in Santa Ana, California, licensed nurses use CIWA assessments during alcohol detox when clinically appropriate. Nursing operations are overseen by Nursing Director Connor Simmons, RN.
CIWA is one part of the overall assessment. Nurses are also monitoring vital signs, medications, medical history, sleep, hydration, nutrition, and how the client is feeling throughout detox.
Quick Facts About the CIWA-Ar
- Full name: Clinical Institute Withdrawal Assessment for Alcohol, Revised
- Also called: CIWA or CIWA-Ar
- Used for: Assessing the severity of alcohol withdrawal symptoms
- Number of items: 10
- Maximum score: 67
- Used by: Trained healthcare professionals during alcohol withdrawal monitoring
What Does CIWA Mean in Medical Terms?
CIWA stands for Clinical Institute Withdrawal Assessment for Alcohol.
The revised CIWA-Ar was published in 1989 as a shorter, 10-item version of the original assessment. It gives clinicians a consistent way to document and follow alcohol withdrawal symptoms over time.
You may also hear a healthcare professional say someone is “on CIWA.” That generally means CIWA-Ar assessments are being completed based on the person’s condition, medical orders, and treatment protocol.
What Does the CIWA Scale Measure?
CIWA-Ar evaluates 10 signs and symptoms associated with alcohol withdrawal.
| Symptom | What Is Assessed |
|---|---|
| Nausea and vomiting | Nausea, dry heaving, or vomiting |
| Tremor | Shaking or tremors |
| Sweating | Degree of perspiration |
| Anxiety | Level of anxiety |
| Agitation | Restlessness or difficulty remaining still |
| Tactile disturbances | Unusual sensations such as itching or pins and needles |
| Auditory disturbances | Changes or disturbances involving sound |
| Visual disturbances | Changes or disturbances involving vision |
| Headache | Headache or pressure in the head |
| Orientation | Awareness of time, place, and surroundings |
Nine categories are scored from 0 to 7. Orientation is scored from 0 to 4, giving the CIWA-Ar a maximum possible score of 67.
Connor describes part of alcohol withdrawal monitoring as:
“Monitoring for tremors, anxiety, restlessness, headache, nausea, and sleep disturbance.”
Sleep is not one of the 10 CIWA-Ar items, but it is still something the nursing team may monitor during detox.
What Do CIWA Scores Mean?
A higher CIWA-Ar score generally means someone is experiencing more significant alcohol withdrawal symptoms at the time of the assessment.
Common reference ranges include:
| CIWA-Ar Score | General Interpretation |
|---|---|
| Below 10 | Mild withdrawal |
| 10–18 | Moderate withdrawal |
| 19 or higher | Severe withdrawal |
The number is not interpreted by itself.
Medical history, previous withdrawal experiences, current medications, other health conditions, vital signs, and changes in symptoms all matter.
The pattern across several assessments can also be more useful than one score alone.
A single CIWA score shows how someone is doing at that moment. Repeated assessments help the team see whether symptoms are improving, remaining stable, or becoming more severe.
What Is a CIWA Protocol?
A CIWA protocol uses repeated CIWA-Ar assessments as part of alcohol withdrawal monitoring and treatment.
The exact process depends on the medical provider’s orders, the client’s condition, and the facility’s policies.
In symptom-triggered treatment, CIWA-Ar scores may help providers determine when prescribed medication is appropriate and when someone needs to be reassessed.
The score itself does not make the treatment decision.
It gives nurses and medical providers a consistent way to measure symptoms and communicate how withdrawal is progressing.
How Often Is CIWA Assessed During Detox?
There is no single CIWA schedule that applies to everyone.
How often someone is assessed may depend on:
- Current withdrawal severity
- Changes in symptoms
- Medical history
- Provider orders
- Medications being used
- Other physical or psychiatric health needs
Someone whose symptoms are changing may need more frequent assessment than someone whose withdrawal symptoms remain mild and stable.
At The Retreat at Orange County, licensed nursing staff are on-site 24 hours a day, allowing monitoring to continue during the day and overnight.
That is especially important early in detox, when symptoms may change as the body adjusts.
Why CIWA Is Only One Part of Alcohol Detox
CIWA-Ar is useful, but nurses do not rely on the score alone.
Some symptoms, such as tremor, sweating, and agitation, can be observed directly.
Others, including nausea, anxiety, headache, and sensory disturbances, depend partly on what the client reports.
Other medical or psychiatric conditions can also cause symptoms that overlap with alcohol withdrawal.
Vital signs are monitored separately because heart rate, blood pressure, temperature, and other measurements are not included in the CIWA-Ar score.
The nursing team may also consider:
- Vital signs
- Current medications
- Medical history
- Hydration
- Nutrition and appetite
- Sleep
- Existing health conditions
- Changes between assessments
- How the client says they are feeling
The CIWA score gives the team useful information. The rest of the assessment gives that number context.
Why Nursing Experience Matters During CIWA Monitoring
Connor has worked in behavioral health and substance use treatment since 2018, beginning as a mental health worker and behavioral health technician before becoming a registered nurse.
Today, as Nursing Director, he stays closely involved with clients’ medications, medical histories, withdrawal assessments, and progress throughout treatment.
His approach to nursing leadership includes understanding not only what medications a client is taking, but also the dosage, why the medication has been prescribed, and how it fits into the larger medical picture.
Nursing also helps keep communication moving between the client and the medical team.
The Retreat’s medical program is led by Eric Chaghouri, MD, Medical Director, who is double board-certified in Psychiatry and Addiction Medicine.
Because licensed nurses are available throughout the day and night, they can communicate relevant changes in withdrawal symptoms, vital signs, medications, or other medical concerns to the appropriate provider.
CIWA vs. COWS: What’s the Difference?
CIWA-Ar and COWS are both withdrawal assessment tools, but they are used for different substances.
| CIWA-Ar | COWS | |
|---|---|---|
| Full name | Clinical Institute Withdrawal Assessment for Alcohol, Revised | Clinical Opiate Withdrawal Scale |
| Used for | Alcohol withdrawal | Opioid withdrawal |
| What it measures | Severity of alcohol withdrawal symptoms | Severity of opioid withdrawal symptoms |
| Examples of symptoms assessed | Tremor, nausea, sweating, anxiety, agitation, headache and sensory disturbances | Restlessness, sweating, body aches, gastrointestinal symptoms, pupil size and pulse rate |
| How it’s used | Helps clinicians track alcohol withdrawal symptoms over time | Helps clinicians track opioid withdrawal symptoms over time |
| Used at The Retreat | When clinically appropriate during alcohol detox | When clinically appropriate during opioid detox |
Connor explains that part of his daily review includes making sure “their test results like their CIWAs, their COWS are within expected range.”
Why Alcohol Withdrawal May Need Medical Monitoring
Alcohol withdrawal can range from relatively mild symptoms to serious medical complications.
Complicated alcohol withdrawal can include seizures and alcohol withdrawal delirium. Symptoms can also change as withdrawal progresses.
Medical assessment can be especially important for people with significant alcohol dependence, a history of complicated withdrawal, other health conditions, or additional risk factors.
CIWA-Ar gives healthcare professionals one way to follow symptoms during that process.
It does not replace a medical evaluation, and someone should not use a CIWA score at home to decide whether alcohol withdrawal can be safely managed without professional care.
What About Other Medical Conditions During Detox?
Withdrawal is not always the only health consideration when someone enters treatment.
Clients may also be managing conditions such as diabetes, hypertension, thyroid disorders, psychiatric medications, or other ongoing medical needs.
Those conditions remain part of the medical picture during detox.
Part of the nursing role is understanding what medications a client already takes, why they take them, and what information the medical team needs as treatment begins.
That is one reason Connor emphasizes staying closely familiar with each client’s medications and medical history rather than looking at withdrawal symptoms in isolation.
What Happens After Acute Alcohol Withdrawal?
Medical support does not necessarily end when the most intense withdrawal symptoms improve.
Some people experience post-acute withdrawal symptoms, or PAWS, after detox. PAWS is a term used to describe symptoms that persist beyond acute withdrawal, although there are not yet universally accepted diagnostic criteria for the condition. These may include changes in sleep, mood, concentration, energy, or cravings.
At The Retreat at Orange County, nursing continues during residential treatment, allowing the team to remain familiar with a client’s medications, medical history, and progress after acute detox.
Connor explains:
“We’re continuing to monitor for post-acute withdrawal symptoms… so that we can initiate MAT therapy if appropriate.”
That continuity allows medical needs to remain part of the treatment plan while the client begins focusing more heavily on therapy, case management, mental health, and long-term recovery.
CIWA Monitoring During Alcohol Detox in Orange County
The Retreat at Orange County provides detox and residential addiction treatment in Santa Ana, Orange County, California.
Licensed nursing staff are on-site 24/7, with nursing operations overseen by Connor Simmons, RN, and medical care led by Eric Chaghouri, MD.
During alcohol detox, this allows withdrawal monitoring to continue throughout the day and night, including the time between scheduled provider evaluations.
Nursing support also continues as clients move from detox into residential treatment. The team already understands the client’s medications, medical history, withdrawal symptoms, and other health needs, giving them continuity as treatment progresses.
What Should You Ask a Detox Program About Withdrawal Monitoring?
When comparing detox programs, it can help to ask specific questions about how medical and nursing care actually works.
Consider asking:
- Are licensed nurses physically on-site overnight?
- Who oversees the nursing department?
- How are alcohol withdrawal symptoms assessed?
- Does the program use CIWA-Ar when clinically appropriate?
- How often are clients reassessed?
- How does nursing communicate with medical providers?
- How are existing medications and medical conditions handled?
- Does nursing support continue after detox?
- What happens if symptoms change between provider evaluations?
These questions can help clarify what medical support looks like once treatment begins.
If You’re Nervous About Alcohol Detox
It is common to have questions about what withdrawal will feel like and what happens once treatment begins.
Connor tells clients:
“You’re supposed to feel nervous and scared because it is not an easy thing to do. But that’s why we’re here; you’re not supposed to do that alone.”
Understanding what CIWA-Ar is and why it is used can make the medical side of detox feel less unfamiliar.
The scale is not the treatment itself. It is one of the tools nurses and medical providers use to understand what someone is experiencing and how those symptoms are changing over time.
Frequently Asked Questions About the CIWA Scale
What is the CIWA scale?
CIWA-Ar is a 10-item clinical assessment used to measure the severity of alcohol withdrawal symptoms.
What does CIWA stand for?
CIWA stands for Clinical Institute Withdrawal Assessment for Alcohol. The version commonly used today is the revised CIWA-Ar.
What is a CIWA score?
A CIWA score is the total generated from the 10 items included in the CIWA-Ar assessment. Higher scores generally reflect more severe alcohol withdrawal symptoms.
What CIWA score is considered mild?
A CIWA-Ar score below 10 is commonly associated with mild withdrawal. The score still needs to be considered alongside the person’s overall clinical condition.
What is a high CIWA score?
Scores of 19 or higher are commonly associated with severe alcohol withdrawal. Treatment decisions should not be based on the CIWA score alone.
What is the highest possible CIWA score?
The maximum possible CIWA-Ar score is 67.
How often is CIWA assessed?
Assessment frequency depends on the person’s symptoms, withdrawal severity, provider orders, medications, and medical needs. Assessments may be more frequent when symptoms are changing.
Is CIWA used for opioid withdrawal?
No. CIWA-Ar is used for alcohol withdrawal. Opioid withdrawal is commonly assessed using the Clinical Opiate Withdrawal Scale, or COWS.
Does CIWA include vital signs?
No. Heart rate, blood pressure, temperature, and other vital signs are monitored separately from the CIWA-Ar score.
Does The Retreat at Orange County use CIWA during alcohol detox?
The Retreat at Orange County uses CIWA assessments during alcohol detox when clinically appropriate. Licensed nursing staff are on-site 24/7, with nursing operations overseen by Nursing Director Connor Simmons, RN.
Start Your Journey Confidently
If concerns about alcohol withdrawal are making it difficult to take the next step, our admissions team can help you understand what detox and treatment may look like for you.
The Retreat at Orange County provides detox and residential addiction treatment in Santa Ana, California, with licensed nursing staff on-site 24 hours a day.
Call (888) 802-2156 or complete the insurance verification form to speak with admissions.