🏥 LRTI - Discharge Criteria & Continued Stay Criteria
Lower Respiratory Tract Infection Management Decision Points
✅ Criteria for Safe Hospital Discharge
Patients should meet ALL criteria before discharge is considered safe and appropriate.
Clinical Stability Criteria
- Temperature: ≤ 37.5°C (99.5°F) for ≥24 hours without antipyretics
- Heart Rate: 60-100 bpm (or baseline rate if known)
- Respiratory Rate: 12-20 breaths/minute
- Blood Pressure: Systolic ≥90 mmHg, Diastolic ≥60 mmHg (no vasopressors)
- SpO₂: ≥92% on room air (or baseline for COPD patients)
- Alert & Oriented: Normal mental status (no confusion/delirium)
- No Respiratory Distress: No tachypnea, stridor, or use of accessory muscles
- Adequate Oxygenation: pO₂ ≥60 mmHg on room air (or stable baseline)
- No Hypercapnia: pCO₂ normal range or chronic baseline
- Effective Cough: Able to expectorate secretions
- No Supplemental O₂ Requirement: Or minimal requirement (<2-3 L/min)
- Adequate Oral Intake: Able to eat and drink without difficulty
- No Dysphagia: No aspiration risk, normal swallowing
- Tolerating Oral Medications: No IV medications required
- Nausea/Vomiting Controlled: Not requiring IV antiemetics
- Bowel Function Intact: Regular bowel movements
Infectious Disease Criteria
- WBC Count: ≤11,000/μL (normalized or trending down)
- CRP/Procalcitonin: Normalized or significantly decreased
- Blood Cultures: Negative (if initially positive)
- Sputum Culture: No new pathogenic organisms identified
- No Fever: Afebrile for ≥24-48 hours
- Antibiotic Course: Completed appropriate duration (7-10 days for CAP)
📋 Discharge Readiness Checklist
⛔ Criteria for Continued Hospitalization
Patients meeting ANY of these criteria should NOT be discharged.
Clinical Instability - RED FLAGS
- Persistent Fever: Temperature >38°C despite antibiotics (>48-72 hours)
- Tachycardia: HR >120 bpm persistently
- Tachypnea: RR >24 breaths/minute or acute worsening
- Hypotension: SBP <90 mmHg requiring vasopressor support
- Hypoxemia: SpO₂ <90% on room air, requiring supplemental O₂
- Altered Mental Status: Confusion, delirium, decreased LOC
- Respiratory Distress: Use of accessory muscles, stridor, grunting
- Hypoxemia: pO₂ <60 mmHg despite supplemental oxygen
- Hypercapnia: pCO₂ >50 mmHg with respiratory acidosis
- Need for Mechanical Ventilation: Current intubation or impending need
Infectious Disease Criteria - RED FLAGS
- Positive Blood Cultures: Bacteremia present, requires investigation
- Persistent WBC Elevation: WBC >15,000/μL with left shift
- Rising CRP/Procalcitonin: Increasing inflammatory markers despite therapy
- Resistant Organisms: MRSA, MDR gram-negatives, fungal agents
- Treatment Failure: No improvement by 48-72 hours on antibiotics
⛔ Continued Stay RED FLAG Checklist
📋 Clinical Assessment Tools
CURB-65 Score at Discharge Assessment
| CURB-65 Score | Discharge Readiness | Action |
|---|---|---|
| 0-1 (Low Risk) | Excellent candidate for discharge | Discharge with outpatient follow-up; oral antibiotics |
| 2 (Intermediate) | Safe to discharge if clinically stable | Monitor 24 hours; transition to oral meds |
| ≥3 (High Risk) | Requires continued hospitalization | Do NOT discharge; continue IV antibiotics |
PSI (Pneumonia Severity Index) - Risk Stratification
| PSI Class | Mortality | Discharge Recommendation |
|---|---|---|
| Class I | <0.1% | ✅ Safe outpatient management |
| Class II | 0.6% | ✅ Consider discharge after observation |
| Class III | 0.9-1.3% | ⚠️ Brief hospitalization required |
| Class IV | 6.8-8.2% | ❌ Hospitalization required |
| Class V | 27-31% | ❌ ICU-level care required |
📞 Discharge & Follow-up Care Planning
Follow-up Schedule
| Timeframe | Action/Assessment | By Whom |
|---|---|---|
| 24-48 hours | Telephone check-in; confirm medication compliance | Nurse or PCP |
| 1 week | In-person PCP visit; assess treatment response | Primary Care Physician |
| 4 weeks | Assess symptom resolution; repeat labs if needed | Primary Care Physician |
| 1-3 months | Repeat CXR if immunocompromised or prolonged symptoms | PCP or Pulmonology |
- Return fever (>38.5°C)
- Worsening shortness of breath
- Chest pain or hemoptysis
- Mental status changes
- Severe fatigue or syncope


