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Sepsis: Recognition, Resuscitation & Ward Checklist — Practical Guide

The word Sepsis written in blue and underlined with a marker.

Sepsis: Practical Guide for Students & Juniors, Recognition, Resuscitation & Ward Checklist

What sepsis *really* looks like at the bedside, how to act in the first hour, and a simple ward checklist you can use today. (Evidence + practical mnemonics.)

Immediate action (read first)

If you suspect sepsis or septic shock: do these three things now.

  1. Call for help and alert your senior/ICU team.
  2. Take blood cultures and other relevant cultures *before* antibiotics — but don’t delay antibiotics if cultures will take time or patient is unstable.
  3. Give rapid fluids (if hypotensive or lactate elevated) and attach monitor; start broad-spectrum IV antibiotics within the hour for high-likelihood sepsis or shock.

Why these matter: early recognition, appropriate antimicrobial treatment, source control and monitored resuscitation are core elements of current sepsis care. See the 2026 Surviving Sepsis Campaign reference below.

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What is sepsis — short definition

Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. In practice this means a patient with infection plus new organ dysfunction (e.g., hypotension, altered mental status, oliguria, hypoxia) — even subtle changes matter. 

Recognition — bedside cues & scoring

Early sepsis may be non-specific. Look for behaviour/physiology changes rather than waiting for dramatic labs.

Red flags (call senior immediately)

  • SBP < 90 mmHg, MAP < 65 mmHg, or a new need for vasopressors.
  • Altered mental state or new confusion.
  • Marked tachypnea (RR > 22) or hypoxia requiring oxygen.
  • Lactate > 2 mmol/L or rapidly rising lactate.
  • Oliguria < 0.5 mL/kg/hr despite fluids.

Scores — quick guidance

qSOFA (resp rate ≥22, altered mentation, SBP ≤100) is a quick bedside screen but is not a diagnostic replacement for full SOFA — use it to flag high-risk patients outside the ICU. For in-hospital/ED workups, a rising SOFA (or ≥2-point increase) indicates organ dysfunction.

Initial resuscitation — first 60–180 minutes

The Surviving Sepsis Campaign recommends early, protocolised care: prompt recognition, early cultures, timely antibiotics, targeted fluid resuscitation, and vasopressors if needed. Guidelines emphasise dynamic assessment rather than rote fluids for all patients. 

Practical first-hour checklist

  1. Airway & O2 — prescribe a patient-specific oxygen target and reassess with blood gases and the local protocol. BTS guidance uses 94–98% for most acutely ill adults and 88–92% for adults at risk of hypercapnic respiratory failure while blood-gas results are pending. Reference: https://www.brit-thoracic.org.uk/clinical-resources/guidelines/emergency-oxygen/
  2. Monitor — continuous HR, BP, RR, SpO₂, urine output; consider arterial line if unstable.
  3. Bloods — CBC, CRP/Procalcitonin, electrolytes, renal & liver panel, lactate (repeat after resus), ABG if required.
  4. Microbiology — take blood cultures x2, urine, sputum, wound cultures where relevant (before antibiotics if this won’t delay treatment).
  5. IV antibiotics — broad-spectrum, empiric, target likely source; aim within 1 hour for septic shock/high suspicion. 
  6. Fluids — for adults with sepsis-induced hypoperfusion or septic shock, SSC 2026 suggests at least 30 mL/kg IV crystalloid in the first 3 hours, with individual patient factors, frequent reassessment and monitoring for under- or over-resuscitation. This is not a rapid fixed-volume rule for every patient.
  7. Vasopressors — if still hypotensive after fluids, start norepinephrine to maintain MAP ≥65 mmHg (avoid delays).
  8. Source control — consider immediate drainage, debridement, or device removal if indicated.

Antibiotics — practical tips

Start empiric broad-spectrum coverage guided by the suspected source, local antibiogram, and patient factors (allergy, renal function, previous colonisation). Take cultures before antibiotics if this won’t cause harmful delay; otherwise start antibiotics and document rationale. Evidence supports earlier antibiotics for septic shock and high-likelihood sepsis — aim for administration within 1 hour for these patients, balancing speed and stewardship. 

Mnemonic — “BROAD” for initial antibiotic choice

  1. Broad-spectrum (cover gram-negatives) — e.g., antipseudomonal beta-lactam if risk factors.
  2. Review local antibiogram & recent cultures.
  3. Omit unnecessary double coverage unless high-risk organisms suspected.
  4. Adjust for allergy, renal/hepatic function.
  5. De-escalate within 48–72 hours once cultures/sensitivity available.

Fluids & hemodynamic monitoring

Use dynamic measures (passive leg raise, stroke volume variation, echocardiography) to guide further fluid after an initial bolus — this avoids fluid overload. For sepsis-induced hypoperfusion, guidelines suggest an initial crystalloid bolus often approximated as 30 mL/kg, but individualise thereafter. 

Quick actions

  • Bolus 250–500 mL crystalloid rapidly and reassess clinical response.
  • Use passive leg raise or bedside echo to check fluid responsiveness.
  • If persistent hypotension despite fluids → start norepinephrine (vasopressor) and consider ICU transfer.

Ward-ready Sepsis Checklist (1-page)

  • Recognition: infection + new organ dysfunction (qSOFA ≥2 or clinical concern)
  • Call: Senior + consider ICU early
  • Immediate: O₂, monitor, IV access, bloods, lactate, cultures
  • Antibiotics: Give (empiric) — document time & choice
  • Fluids: Rapid crystalloid bolus; reassess
  • Vasopressors: Norepinephrine if unresponsive
  • Source control: Drain/debride/remove devices ASAP
  • Document: sepsis recognition, timing of interventions, escalation plan

Use the above as a printed card on the resus trolley or phone screenshot.

When to escalate

  • Persistent MAP <65, rising lactate, decreased urine output or increased O₂ needs
  • Failing mental status or evidence of multiorgan dysfunction

Program & policy: hospitals should run sepsis programs (multidisciplinary) to improve outcomes. 

Worked example — a 45-year-old with suspected sepsis

  1. Patient: 45M with fever, productive cough, RR 28, SBP 86/50, confused. qSOFA = 3/3: respiratory rate ≥22/min, systolic blood pressure ≤100 mmHg, and altered mentation each score one point. This is a prompt for urgent assessment, not a stand-alone diagnosis of sepsis.
  2. Action: Call senior/ICU; give high-flow O₂, two large-bore IVs, send bloods (including lactate) and blood cultures.
  3. Antibiotics: Empiric piperacillin-tazobactam (if local antibiogram supports) within 1 hour; document time given.
  4. Fluids: Give 1 L crystalloid bolus rapidly and reassess. If still hypotensive after 30 mL/kg total and not fluid responsive → start norepinephrine via central line or per local protocol.
  5. Source control: consider chest imaging; if empyema suspected → urgent drainage.

This sequence follows international guidance balancing early antibiotics + source control with individualised resuscitation. 

Pitfalls, myths & practical pearls

  • Don’t delay antibiotics for labs if the patient is unstable.
  • 30 mL/kg is a starting point, not an absolute rule.
  • qSOFA is a red-flag — not a definitive test.
  • Document everything:

Student checklist — what to practise

  1. Practice taking a 60-second sepsis history and triggering the sepsis checklist.
  2. Run bedside mock scenarios: call-for-help, IV access, blood cultures, antibiotics, and fluid bolus.
  3. Learn basic vasoactive drug knowledge (norepinephrine: starting dose, monitoring) and how to set an infusion pump safely.
  4. Know local empiric antibiotic choices & your hospital antibiogram.

References & further reading

  • Sepsis-3 consensus definitions (Singer et al., JAMA) — sepsis definition and SOFA-based organ dysfunction. 
  • Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2026 — current adult recommendations: https://sccm.org/survivingsepsiscampaign/guidelines-and-resources/surviving-sepsis-campaign-adult-guidelines
  • WHO guidance and fact sheets on sepsis (recognition, management) — global perspective (2024).
  • Evidence reviews on timing of antibiotics and outcomes (recent reviews 2023–2025) — early antibiotics for severe sepsis/septic shock associated with improved short-term mortality in many studies; balance with stewardship. 
  • CDC: Hospital Sepsis Program Core Elements — building system-level safety.