First 30 seconds
- 112-lead ECG immediately
- 2If K⁺ ≥6.5 or ECG changes:
- 3Calcium gluconate 10% 10 mL IV over 10 min (cardiac protection)
Severe: K⁺ ≥6.5 or ECG changes (peaked T, wide QRS, sine wave).
A
Airway
- • Patent? Talking? Stridor?
- • Suction, jaw-thrust, adjuncts, definitive airway if needed
B
Breathing
- • RR, SpO₂, auscultate, percuss
- • O₂ to target sats, NIV / intubate as required
C
Circulation
- • HR, BP, cap refill, JVP
- • 2× large-bore IV, bloods, monitor, ECG
D
Disability
- • AVPU/GCS, pupils, glucose, temp
E
Exposure
- • Full exposure, skin, rash, bleeding, lines, infection source
