Immediate Management: Fluid Resuscitation First
In a patient presenting with hypotension (90/70 mmHg), chills, rigor, and recent respiratory symptoms suggesting sepsis, the next step is B) fluid resuscitation with crystalloids, followed immediately by antibiotics if hypotension persists after initial fluid challenge. 1
Initial Resuscitation Protocol
This patient meets criteria for severe sepsis/septic shock based on:
- Suspected infection (cough, sputum production suggesting pneumonia) 1
- Systolic blood pressure ≤90 mmHg indicating sepsis-induced hypotension 1, 2
- Chills and rigors indicating systemic inflammatory response 1
The Surviving Sepsis Campaign guidelines mandate protocolized quantitative resuscitation starting immediately upon recognition of sepsis-induced tissue hypoperfusion, which should NOT be delayed pending ICU admission. 1
Step 1: Aggressive Fluid Resuscitation
- Administer 30 mL/kg of crystalloid fluid (approximately 2-3 liters for average adult) as a rapid bolus within the first 3 hours 1, 3
- Lactated Ringer's solution is preferred over 0.9% saline, as it is associated with improved survival (adjusted HR 0.71,95% CI 0.51-0.99) and more hospital-free days in sepsis-induced hypotension 4
- Fluid resuscitation should occur intravenously, even if surgical cut-down or intraosseous access is required 1
Step 2: Simultaneous Antibiotic Administration
- Obtain blood cultures (minimum two sets) but do NOT delay antibiotics beyond 45 minutes 5
- Administer IV broad-spectrum antibiotics within 60 minutes of sepsis recognition, as each hour of delay increases mortality risk 5
- For suspected pneumonia with sepsis, cover typical and atypical respiratory pathogens 5
Step 3: Reassess After Fluid Challenge
After the initial 30 mL/kg crystalloid bolus, reassess blood pressure: 1, 2
- If systolic BP remains <90 mmHg or MAP <65 mmHg despite adequate fluid resuscitation (defined as 30 mL/kg), initiate vasopressor therapy 1, 2
- Norepinephrine is the first-line vasopressor 1, 3
- Target MAP ≥65 mmHg 1, 3
Why NOT Epinephrine First?
IV epinephrine (option C) is NOT the initial intervention for septic shock. 1
- Epinephrine is reserved for refractory hypotension when norepinephrine fails or as a single agent when myocardial depression is present 1
- In distributive shock from sepsis, norepinephrine is the recommended first-line vasopressor after adequate fluid resuscitation 1
- Vasopressors should only be initiated AFTER demonstrating inadequate response to fluid challenge 1, 2
Resuscitation Targets (First 6 Hours)
Monitor and target the following parameters: 1
- MAP ≥65 mmHg 1, 3
- Urine output ≥0.5 mL/kg/h 1
- CVP 8-12 mmHg (12-15 mmHg if mechanically ventilated) 1
- ScvO2 ≥70% or lactate normalization 1, 3
Critical Pitfalls to Avoid
- Do NOT delay antibiotics for diagnostic workup—sepsis management takes precedence 5
- Do NOT start vasopressors before adequate fluid resuscitation (30 mL/kg crystalloid challenge) 1, 2
- Do NOT use 0.9% saline preferentially—lactated Ringer's has superior outcomes 4
- Stop fluid resuscitation if no improvement in tissue perfusion occurs or if pulmonary edema develops (crepitations on exam) 1
- Some patients may require several liters during the first 24-48 hours—the initial 30 mL/kg is just the starting point 1
Monitoring Response to Fluid Resuscitation
Positive response indicators include: 1
- ≥10% increase in systolic/mean arterial blood pressure 1
- ≥10% reduction in heart rate 1
- Improvement in mental status, peripheral perfusion, and/or urine output 1
If these improvements occur, continue fluid resuscitation cautiously while monitoring for fluid overload. 1