Door-to-antibiotic time (sepsis)
Time from arrival (or sepsis recognition) to the first dose of IV antibiotics in a septic patient. In septic shock, delay is measured in mortality — every hour without antibiotics meaningfully raises the risk of death.
Capture & escalation pipeline
From sepsis recognition to the first antibiotic, with the one-hour check.
How it’s measured
- Numerator
- Septic patients who receive IV antibiotics within the target time of arrival or sepsis recognition.
- Denominator
- All patients identified with sepsis/septic shock in the ED.
- Formula
- (Numerator ÷ Denominator) × 100, with median door-to-antibiotic minutes.
- Unit
- % within target (and median minutes)
Target
India: Aim for first IV antibiotic within 1 hour of sepsis recognition; tracked under NABH sepsis-bundle audits.
International: Surviving Sepsis Campaign: antibiotics within 1 hour for septic shock and high-likelihood sepsis; CMS SEP-1 reinforces early administration.
Start the clock at recognition (triage flag or qSOFA/NEWS trigger), and record that recognition time explicitly.
Who does what
The clinical chain of responsibility at the bedside.
| Triage nurse | Screens for sepsis (NEWS2/qSOFA + infection), flags it, and records the recognition time. |
|---|---|
| ED doctor | Confirms sepsis, prescribes the right empirical antibiotic promptly, and orders the bundle. |
| Nursing | Draws cultures, gains access, and administers the antibiotic; records the administration time. |
| Pharmacy | Ensures empirical antibiotics are stocked and dispensed without delay. |
What to capture & how it’s automated
Who captures it
Triage nurse (recognition) and administering nurse (antibiotic time).
What is captured
Recognition/trigger time and antibiotic administration time, plus whether cultures were drawn first.
Manual reality
Recognition time is often not recorded at all; the antibiotic time sits in the nursing/medication chart. The interval is then guessed at audit.
Automated in real life
An EMR sepsis alert (NEWS2/qSOFA + suspected infection) timestamps recognition, the eMAR timestamps administration, and the dashboard computes the interval automatically and flags >60-minute cases.
Who in the hospital is involved
Beyond the bedside — the functions that make capture and improvement happen.
| Quality cell / QI nurse | Audits bundle compliance and segments delays (recognition vs prescription vs administration). |
|---|---|
| Pharmacy | Maintains an immediately available empirical-antibiotic supply and dosing guidance. |
| Medical records / HIM | Pulls recognition and administration timestamps and links to outcomes. |
| IT | Builds the sepsis alert and eMAR timestamping. |
| Infection control / antimicrobial stewardship | Aligns 'fast' with 'right' — appropriate empirical choice, de-escalation later. |
| ED manager | Removes workflow friction (access, stock, staffing) that delays the first dose. |
Why it affects performance
Door-to-antibiotic is the headline sepsis-bundle metric and a NABH/board-tracked indicator. Segmenting it shows whether the delay is recognition, decision, or drug delivery.
Why it affects patient care
Early appropriate antibiotics are among the few sepsis interventions with a clear survival benefit. Speeding this up directly lowers sepsis mortality and organ failure.
Capture pitfalls & gaming to watch for
- No recorded recognition time, so the clock cannot be measured honestly.
- Chasing speed at the cost of an inappropriate antibiotic choice.
- Delaying antibiotics for cultures when access is difficult (cultures should not hold up a shock patient).
- Counting only confirmed sepsis retrospectively, missing those who were septic at the door.
What actually moves the number
- A triage sepsis screen that flags and timestamps recognition.
- A pre-built sepsis order set with empirical antibiotic, fluids, lactate, cultures.
- Antibiotics stocked in the ED, not only in central pharmacy.
- Draw cultures and give antibiotics in parallel, not in sequence.
- Feedback of recognition-to-antibiotic times to the team monthly.
References
Freely citable- SSCGlobal
Surviving Sepsis Campaign — international guidelines for management of sepsis and septic shock (hour-1 bundle).
Open source ↗
- NABHIndia
National Accreditation Board for Hospitals & Healthcare Providers — sepsis pathway and ED quality indicators.
Open source ↗
- ICMRIndia
Indian Council of Medical Research — treatment guidelines for antimicrobial use and sepsis.
Open source ↗
- CMSUS
Centers for Medicare & Medicaid Services — SEP-1 early management bundle for severe sepsis/septic shock.
Open source ↗
Compiled from contemporary emergency-medicine quality practice and freely citable accreditation and guideline standards. Educational use only.