Post Anesthesia Care Unit (PACU)

  • The role of the anesthetist is not limited to theatres. There may be a number of postoperative responsibilities to undertake, both in the recovery room and on the surgical ward.
  • After receiving anesthesia for a surgery or procedure, a patient is sent to the PACU to recover and wake up.
  • The PACU is a critical care unit where the patient’s vital signs are closely observed, pain management begins, and fluids are given.
  • The nursing staff is skilled in recognizing and managing problems in patients after receiving anesthesia.
  • The PACU is under the direction of the Department of Anesthesiology.

Admission to PACU

Steps

  • Coordinate prior to arrival
  • Assess airway
  • Administer oxygen
  • Apply monitors
  • Obtain vital signs
  • Receive report from anesthesia personnel

Monitoring in the PACU

  • Baseline vital signs
  • Respiration
    • RR/min, Rhythm
    • Pulse oximetry
  • Circulation
    • PR/min & Blood pressure
    • ECG
  • Level of consciousness
  • Pain scores

Aldrete Score

ScoreActivityRespirationCirculationConsciousnessOxygen Saturation
2Moves all extremitiesBreaths deeply and coughs freely.BP ± 20 mm of preanesth. levelFully awakeSpo2 > 92% on room air
1Moves 2 extremitiesDyspneic, or shallow breathingBP ± 20-50 mm of preanesth. levelArousable on callingSpo2 >90% With suppl. O2
0Unable to moveApneicBP ± 50 mm of preanesth. levelNot respondingSpo2 <92% With suppl. O2

Discharge From the PACU

  • Standard Aldrete Score:
    • Simple sum of numerical values assigned to activity, respiration, circulation, consciousness, and oxygen saturation.
    • A score of 9 out of 10 shows readiness for discharge.
  • Post-anesthesia Discharge Scoring System:
    • Modification of the Aldrete score which also includes an assessment of pain, N/V, and surgical bleeding, in addition to vital signs and activity.
    • Also, a score of 9 or 10 shows readiness for discharge.