Guide — Perioperative Nursing
Postoperative Nursing Care
The postoperative phase begins when the patient is admitted to the post-anesthesia care unit (PACU) and continues through the recovery period. Nurses must rapidly assess and manage airway, breathing, circulation, pain, and surgical-site integrity while monitoring for life-threatening complications.
12 min read · Perioperative Nursing
Educational use only. This content is intended for nursing students and exam preparation. Postoperative care protocols are individualized and setting-specific. Always follow provider orders and your institution's PACU standards. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
PACU — Phase I vs. Phase II Recovery
Phase I PACU — Immediate Recovery
High-acuity monitoring immediately after surgery. Goal: stabilize vital functions, manage airway and emergence from anesthesia, control pain, prevent life-threatening complications.
- ✦1:1 or 1:2 nurse-to-patient ratio
- ✦Continuous monitoring: ECG, SpO2, BP, RR, temperature
- ✦Oxygen administration
- ✦Airway maintenance (positioning, airway adjuncts, suction)
- ✦Manage emergence: agitation, delirium, shivering
- ✦Discharge when Aldrete score ≥9
Phase II PACU — Step-Down Recovery
Intermediate monitoring as anesthesia fully resolves. Goal: prepare for discharge home (outpatient) or transfer to inpatient unit.
- ✦Less intensive monitoring (intermittent vs. continuous)
- ✦Patient begins tolerating PO liquids
- ✦Sitting up, ambulating with assistance
- ✦Discharge teaching initiated or reinforced
- ✦Pain managed with oral agents
- ✦Family/support person at bedside
Immediate Postoperative Priorities — ABC Order
Maintain a patent airway — the highest priority after any general anesthesia. Residual neuromuscular blockade, secretions, and tongue falling back are common causes of airway obstruction. Position patient on their side (lateral) if not contraindicated — reduces aspiration risk. Keep suction at bedside. Assess for stridor, decreased SpO2, snoring, or retractions.
- ✦Lateral positioning until fully awake
- ✦Jaw thrust or chin lift if obstructed
- ✦Oral/nasopharyngeal airway if needed
- ✦Suction secretions as needed
- ✦Maintain supplemental oxygen per order
Assess respiratory rate, depth, pattern, and oxygen saturation. Respiratory depression is a major concern with opioid analgesia and residual anesthetic agents. Incentive spirometer use and deep breathing exercises begin as soon as patient is alert.
- ✦SpO2 monitoring — target ≥95% per provider
- ✦Supplemental O2 (nasal cannula to non-rebreather as needed)
- ✦Encourage deep breathing every hour while awake
- ✦Incentive spirometer 10 breaths per hour
- ✦Assess for equal bilateral breath sounds
Monitor vital signs per protocol (typically q15min × 4, then q30min × 2, then q1h). Assess skin color, warmth, capillary refill. Monitor urine output (goal ≥0.5 mL/kg/hr). Watch for hemorrhage — increased HR, decreased BP, pallor, restlessness.
- ✦VS per PACU protocol
- ✦IV access confirmed and infusing
- ✦Monitor for hemorrhage: VS trends, incision bleeding, drain output
- ✦Assess urine output (Foley if present)
- ✦12-lead ECG if cardiac concerns arise
Assess level of consciousness, orientation, ability to follow commands, and motor function. Emergence agitation, delayed emergence, and emergence delirium are common. Reorient patient frequently — hearing returns before full awareness, so speaking calmly is important throughout emergence.
- ✦GCS or orientation assessment
- ✦Reorient repeatedly: name, location, 'surgery is over'
- ✦Side rails up — fall risk is highest during emergence
- ✦Assess for post-anesthesia shivering (warming blankets)
- ✦Check motor strength in extremities after regional anesthesia
Pain Management
| Modality | Description | Nursing Points |
|---|---|---|
| IV opioids (morphine, hydromorphone, fentanyl) | First-line IV analgesia in PACU for moderate-to-severe pain | Monitor respiratory rate and sedation level with each dose; have naloxone available |
| PCA (patient-controlled analgesia) | Patient self-administers preset IV opioid dose with lockout interval | Educate patient to press before pain is severe; ONLY patient presses button — not family |
| IV acetaminophen (Ofirmev) | Non-opioid IV analgesic — used as part of multimodal analgesia | Does not cause respiratory depression; effective opioid-sparing adjunct |
| Ketorolac (Toradol) | NSAID — IV/IM for acute postoperative pain; max 5 days | Hold if renal impairment, active GI bleeding, or elevated bleeding risk; effective anti-inflammatory |
| Regional analgesia (nerve blocks, epidural) | Catheter or single-shot block provides prolonged site-specific analgesia | Assess dermatomal level for spinal/epidural; assess motor function; monitor for urinary retention |
| Non-pharmacological | Ice packs, positioning, splinting, relaxation, distraction | Complement pharmacological management; especially effective for superficial/incisional pain |
Early Ambulation
Early ambulation is one of the most effective interventions to prevent postoperative complications. Most patients are encouraged to sit up on the evening of surgery and ambulate by the first postoperative morning.
DVT/PE
Activates calf muscle pump → promotes venous return
Atelectasis/Pneumonia
Expands lung bases; mobilizes secretions
Postoperative ileus
Stimulates GI motility
Pressure injuries
Reduces prolonged skin compression
Muscle deconditioning
Maintains strength and independence
Urinary retention
Normalizes bladder function; reduces Foley need
Ambulation safety: Dangle at bedside first (assess for orthostatic hypotension). Have patient stand with support. Short distance with assistance first. Document tolerance and distance ambulated.
Aldrete Score — PACU Discharge Criteria
| Category | 2 | 1 | 0 |
|---|---|---|---|
| Activity | Moves all 4 extremities on command | Moves 2 extremities | Unable to move extremities |
| Respiration | Breathes deeply; coughs freely | Dyspnea or limited breathing | Apneic; requires ventilatory support |
| Circulation | BP ±20% of pre-anesthesia level | BP ±20–49% | BP ±50% or more from baseline |
| Consciousness | Fully awake and alert | Arousable on calling | Not responding |
| Oxygen saturation | SpO2 >92% on room air | Requires supplemental O2 to maintain >90% | SpO2 <90% even with O2 |
Score of 9–10 required for PACU Phase I discharge. Maximum score = 10.
Fluid Balance and Output Monitoring
IV fluid administration
Continue ordered IV fluids; transition to PO as tolerated. Assess for signs of fluid overload (crackles, edema) and dehydration (dry mucous membranes, decreased urine output, tachycardia).
Urine output
Goal: ≥0.5 mL/kg/hr. Less than 30 mL/hr for 2 consecutive hours is concerning — assess IV fluid status, bladder scan if Foley not present, and notify provider if no improvement.
Drain output
Record drain output every shift or per protocol. Note amount, color, and character. Excessive bleeding from surgical drain may indicate hemorrhage — notify provider for sudden increase in bright red drainage.
Nasogastric tube (if present)
Keep tube patent and in correct position. Record amount and character of drainage. NG tubes are not routinely clamped without an order.
NCLEX Pearls — Postoperative Nursing
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with AORN Guidelines for Perioperative Practice · American Society of Anesthesiologists (ASA). It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →