WETFLAG (Paediatric Emergency) calculator
Result
16 kg
Fluid bolus: 320 mL | Adrenaline (1:10000): 1.6 mL | Defib: 64 J
W=Weight, E=Energy (defibrillation), T=Tube, F=Fluid, L=Lorazepam, A=Adrenaline, G=Glucose.
How to use it
- 1
Weight estimation. 0–1 yr: weight (kg) = 6 × age (mo) + 4. > 1 yr: 2 × (age + 4).
- 2
WETFLAG aide-mémoire. W=Weight. E=Energy: 4 J/kg. T=Tube size: (age/4)+4. F=Fluid: 20 mL/kg. L=Lorazepam: 0.1 mg/kg. A=Adrenaline: 0.1 mL/kg of 1:10000. G=Glucose: 5 mL/kg of 10%.
- 3
Use actual weight when known. Estimated weight carries ±25% error — update calculations with actual weight at first opportunity.
When to use it
- Paediatric resuscitation (APLS)
- WETFLAG is a mnemonic for rapid calculation of emergency drug doses.
- No Broselow tape available
- Quick mental arithmetic for age-based estimates.
- Training
- Essential component of Paediatric Advanced Life Support (APLS) training.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Paediatrics
- Inputs
- 1
- Type
- Formula
