Create a management protocol for sepsis in the ICU
Reading File
Finding Sources
Finding Sources
Reading File
Reading File
Reading File
Reading File
I now have comprehensive content from two authoritative sources (Harrison's Principles of Internal Medicine and a major anesthesiology/critical care textbook). I have enough to produce a thorough, well-structured ICU sepsis management protocol.
ICU Management Protocol: Sepsis and Septic Shock
Based on the 2021 Surviving Sepsis Campaign (SSC) Guidelines and Sepsis-3 definitions
1. Definitions (Sepsis-3)
| Condition | Criteria |
|---|---|
| Sepsis | Suspected/confirmed infection + SOFA score increase ≥ 2 from baseline |
| Septic Shock | Sepsis + vasopressor requirement to maintain MAP ≥ 65 mmHg + lactate > 2 mmol/L despite adequate fluid resuscitation |
Rapid bedside screen — qSOFA (≥ 2 = high risk):
- Respiratory rate ≥ 22 breaths/min
- GCS < 15
- Systolic BP ≤ 100 mmHg
2. Immediate Actions (0–1 Hour)
Cultures & Diagnostics
- Draw ≥ 2 sets of blood cultures (peripheral + central if available) before antibiotics
- Obtain cultures from all suspected sources (urine, sputum, wound, CSF as indicated)
- Imaging studies promptly to identify infection source
- Serum lactate (baseline and serial monitoring)
- CBC, CMP, coagulation panel, procalcitonin
Antibiotics
- Septic shock: Empiric broad-spectrum antibiotics within 1 hour of shock recognition — every 1-hour delay increases mortality by ~7–8%
- Sepsis without shock: Empiric antibiotics within 3 hours if no alternative diagnosis identified
Empiric Antibiotic Selection
| Scenario | Recommended Regimen |
|---|---|
| Undifferentiated sepsis, Pseudomonas unlikely | 3rd-gen cephalosporin (ceftriaxone or cefotaxime) |
| Pseudomonas likely | Cefepime, piperacillin-tazobactam, or carbapenem (imipenem/meropenem) |
| Highly resistant gram-negatives suspected | Two empiric gram-negative agents |
| MRSA risk (skin/soft tissue, IV drug use, prior MRSA) | Add vancomycin or daptomycin |
| Fungal risk (immunocompromised, prolonged ICU) | Add empiric antifungal coverage |
De-escalate antibiotics once culture and sensitivities are available.
Source Control
- Identify and control the infectious source promptly
- Drain abscesses, remove infected catheters/devices, debride necrotic tissue as indicated
3. Fluid Resuscitation
- Initial bolus: 30 mL/kg IV crystalloid in the first 3 hours
- Preferred fluid: Balanced crystalloids (e.g., lactated Ringer's); consider albumin when large crystalloid volumes are required
- Avoid: Hetastarch (HES) formulations
- Continue fluid challenges as long as hemodynamic improvement is demonstrated (dynamic or static assessment)
- Monitor for fluid overload — reassess frequently with clinical exam, dynamic respiratory indices (pulse pressure variation, stroke volume variation), or echocardiography
4. Vasopressor Therapy
| Agent | Role & Dose |
|---|---|
| Norepinephrine | First-line vasopressor; target MAP ≥ 65 mmHg |
| Vasopressin | Add as adjunct when norepinephrine reaches 0.25–0.5 μg/kg/min; do not use as sole agent |
| Epinephrine | Add when hypotension persists despite norepinephrine + vasopressin |
| Dobutamine | Add to norepinephrine (or use epinephrine alone) for low cardiac output states persisting after adequate resuscitation |
| Dopamine | Avoid; use only in highly selected circumstances |
| Levosimendan / Terlipressin | Not recommended |
Hemodynamic monitoring: Invasive arterial line for all patients on vasopressors. Bedside TTE/TEE preferred over PAC (PAC does not improve outcomes).
5. Corticosteroids
- Administer IV hydrocortisone 200 mg/day (continuous infusion or divided doses) if shock persists despite adequate fluid resuscitation and vasopressor therapy
- Taper and discontinue when vasopressors are no longer required
6. Respiratory Support
| Situation | Intervention |
|---|---|
| Hypoxemia | Supplemental oxygen; titrate to SpO₂ ≥ 94% |
| Respiratory failure | Mechanical ventilation |
| ARDS (all) | Low tidal volume: 6 mL/kg predicted body weight; plateau pressure ≤ 30 cmH₂O; apply PEEP |
| Moderate–severe ARDS | Prone positioning ≥ 12 hrs/day |
| Prone positioning | Neuromuscular blockade (intermittent bolus preferred over continuous infusion) |
| Refractory ARDS | Veno-venous ECMO if experienced team and resources available |
Additional ventilator care:
- Head of bed elevation 30–45° (semi-recumbent position)
- Ventilator weaning protocol + daily sedation interruption for continuous infusion sedation
- Avoid routine pulmonary artery catheters in ALI/ARDS
7. ICU Admission
- Target ICU admission within 6 hours of sepsis diagnosis for all critically ill patients
8. Laboratory & Monitoring Targets
| Parameter | Target |
|---|---|
| MAP | ≥ 65 mmHg |
| Lactate | Serial measurements; normalization indicates adequate resuscitation |
| Hemoglobin | 7–9 g/dL (restrictive transfusion strategy, unless tissue hypoperfusion, CAD, or acute hemorrhage) |
| Arterial pH | Use bicarbonate to correct pH < 7.2 in the setting of AKI |
| Procalcitonin | Use to guide discontinuation of antibiotics (not initiation) |
9. Supportive Care Bundle
- DVT prophylaxis (LMWH preferred)
- Stress ulcer prophylaxis (PPI or H₂ blocker)
- Glycemic control: Target blood glucose 140–180 mg/dL; avoid hypoglycemia
- Nutrition: Early enteral nutrition when feasible
- Sedation/analgesia: Use validated scales (CPOT, RASS); minimize oversedation
- Remove unnecessary lines/catheters promptly
- Early mobilization once hemodynamically stable
10. De-escalation and Long-Term Care
- Narrow antibiotics based on culture results
- Remove central venous and urinary catheters when no longer needed
- Discontinue unnecessary IV fluids; use judicious diuresis for fluid overload
- Implement DVT prevention and early mobilization
- Screen for post-sepsis sequelae before discharge: physical deconditioning, cognitive decline, depression, PTSD
- Discharge plan: establish follow-up for physical, cognitive, and psychological rehabilitation
Prognosis context: 50% of sepsis survivors are rehospitalized within 1 year; 1 in 6 die within the first year. Common causes of readmission include heart failure, pneumonia, and recurrent infection.
11. Goals-of-Care
- Discuss prognosis and goals of care with patient and family early
- Integrate palliative care principles to address patient and family suffering when appropriate
Sources: Harrison's Principles of Internal Medicine 21e — Sepsis and Septic Shock; Miller's Anesthesia / Critical Care (Table 57-4, Management of Sepsis and Septic Shock). Based on Surviving Sepsis Campaign International Guidelines 2021 (Evans L et al, Crit Care Med 49:e1063, 2021) and Sepsis-3 definitions (Singer M et al, JAMA 315:801, 2016).
This is a shared conversation. Sign in to Orris to start your own chat.