What score is required for PACU discharge?

Most institutions use a threshold of 9 or 10 out of 10 before transferring a patient from the PACU to the general ward. Some facilities accept a score of 8 if a specific criterion (e.g. oxygen saturation) is met with supplemental oxygen as a documented exception.

What is the difference between the original and modified Aldrete score?

The original 1970 Aldrete score used skin color as the fifth criterion. The modified (1995) version replaces skin color with pulse oximetry (SpO2), reflecting modern oxygen saturation monitoring and making the score more objective and clinically relevant.

Does this score apply after regional anesthesia?

Yes, but with caveats. Motor activity may be scored lower due to the intentional motor block of spinal or epidural anesthesia. Many units use a modified interpretation for regional blocks, requiring resolution to a defined level or applying an alternative discharge criterion for motor score.

How often should the Aldrete score be reassessed?

Standard practice is to assess on PACU admission, then every 15–30 minutes until the discharge threshold is met. More frequent assessment is appropriate for patients with slower recovery or concerning vital signs.

What is the maximum possible Aldrete score?

The maximum is 10 points — 2 points for each of the five criteria: activity, respiration, circulation, consciousness, and oxygen saturation.

Is the Aldrete score a substitute for clinical judgment?

No. The score is a structured aide to clinical decision-making, not a replacement for it. Patient-specific factors such as pre-existing conditions, surgical complexity, pain control, and post-operative nausea must be considered alongside the numeric score.

Aldrete Recovery Score Calculator — PACU Discharge Assessment

Summary

Score five post-anesthesia criteria to determine PACU discharge readiness; a total of 9 or more (out of 10) indicates the patient meets standard discharge criteria.

How it works

Assess the patient on all five post-anesthesia criteria.
Select the 0, 1, or 2 point value that best matches the patient's current status for each criterion.
The calculator sums the five criteria scores in real time.
A total score of 9–10 out of 10 meets standard PACU discharge criteria.
Reassess periodically; patients below 9 require continued monitoring in the PACU.
Document the score and the time of assessment in the anesthetic record.

Use cases

Determining when a patient is ready for discharge from the PACU to the surgical ward.
Standardizing post-anesthesia nursing assessments across care team members.
Tracking recovery trajectory with serial scores after general or regional anesthesia.
Anesthesia resident and nursing education on structured PACU evaluation.
Quality improvement audits of post-operative recovery times.
Documenting objective recovery status for medico-legal and billing records.

Aldrete Recovery Score

Post-Anesthesia Criteria

Recovery Score Result

Breakdown