Immediate Post-Op - The First 24 Hours
- Vitals Monitoring (Rule of 15): Q 15 min x 1 hr → Q 30 min x 2 hrs → Q 1 hr x 4 hrs → 4-hourly.
- Key Parameters: Monitor HR, BP, RR, SpO₂, Temp, and Urine Output (U.O.).
- ⚠️ Alert: U.O. < 0.5 mL/kg/hr, significant vital changes.
- Core Management:
- Analgesia: IV Paracetamol ± NSAIDs/Opioids.
- IV Fluids: Isotonic crystalloids until oral intake resumes.
- DVT Prophylaxis: Early mobilization is key.
- Wound: Check dressing for soakage/bleeding.
⭐ Post-op Fever: In the first 24-48 hrs, fever is most commonly from the systemic inflammatory response (cytokine release) to surgical trauma, not infection.
📌 Mnemonic for Post-Op Fever Causes (The 5 W's):
- Wind (Atelectasis: Day 1-2)
- Water (UTI: Day 3-5)
- Wound (Infection: Day 5-7)
- Walking (DVT/PE: Day 7+)
- Wonder Drugs (Anytime)
Wound Care - Site Surveillance
- Initial Dressing: Keep dry and intact for 24-48 hours post-op, unless signs of excessive bleeding or infection arise.
- Wound Inspection: Regularly monitor for signs of Surgical Site Infection (SSI).
- 📌 REEDA Scale: Redness, Edema, Ecchymosis, Discharge, Approximation of wound edges.
- Discharge: Note character (serous, sanguineous, purulent).
- Superficial Incisional SSI:
- Occurs within 30 days post-op.
- Involves only skin and subcutaneous tissue.
- Requires one of: purulent drainage, positive culture, or surgeon deliberately opens wound due to inflammation.
- Management: If SSI is suspected, remove sutures/staples, obtain wound culture, irrigate, and pack for secondary intention healing.
⭐ The most common pathogen causing SSIs is Staphylococcus aureus, frequently originating from the patient's endogenous skin flora.

Systemic Support - Meds & Mobility
-
Analgesia (Pain Control):
- Follow WHO step-ladder: Paracetamol → NSAIDs → Opioids (e.g., Tramadol).
- Consider Patient-Controlled Analgesia (PCA) for major surgeries.
-
Thromboprophylaxis (DVT Prevention):
- Pharmacological: LMWH (e.g., Enoxaparin 40mg SC OD) initiated post-op.
- Mechanical: Graduated compression stockings, Intermittent Pneumatic Compression (IPC).
- 📌 Mnemonic (Virchow's Triad): SHE - Stasis, Hypercoagulability, Endothelial injury.
-
Mobility & Physiotherapy:
- Early Mobilization: Crucial to prevent atelectasis, DVT, and pressure sores.
- Chest Physio: Incentive spirometry, deep breathing exercises.
- Limb Physio: Active & passive range-of-motion exercises.
⭐ For patients on LMWH, routine coagulation monitoring (like aPTT) is not required, unlike with Unfractionated Heparin.
Discharge Planning - The Road Home
- Initiate Early: Begin planning within 24-48 hours of admission.
- Core Components (📌 D-A-T-E-S):
- Diagnosis: Patient understands their condition.
- Appointments: Schedule follow-up within 7-14 days.
- Threats: Clear red flag signs/symptoms to watch for.
- Explanations: Meds, diet, activity levels explained.
- Support: Ensure a safe home environment & caregiver availability.
⭐ The "Teach-Back" Method is the gold standard to ensure patient comprehension and reduce readmission rates. Ask them to explain their care plan back to you.
High-Yield Points - ⚡ Biggest Takeaways
- Post-op fever: Atelectasis is the most common cause in the first 48 hours. After 72 hours, suspect wound infection or DVT.
- Suture removal times: Face (3-5 days), trunk/scalp (7-10 days), limbs/joints (10-14 days).
- Early ambulation is crucial to prevent both atelectasis and venous thromboembolism (VTE).
- Discontinue prophylactic antibiotics within 24 hours post-op to prevent antimicrobial resistance.
- Maintain urine output > 0.5 mL/kg/hr to ensure adequate renal perfusion.
- Always use a multimodal approach for effective post-operative pain control.
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