MBBS OSCE · Emergency / Toxicology
Snakebite — syndrome recognition and ASV OSCE
OSCE on neurotoxic elapid envenoming, airway, 20WBCT, polyvalent ASV same dose in children, neostigmine trial.
10 min stationVerification in progress
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Exam tags
NEET-PGINICET
Candidate instructions
Recognise neurotoxic envenoming, protect the airway, and give antivenom appropriately.
Candidate tasks
- ABC and early airway assessment (bulbar/respiratory power).
- Identify likely krait/cobra pattern vs viper pattern.
- Perform/interpret 20WBCT.
- Give polyvalent ASV with anaphylaxis preparedness; same vial dose in children.
- Consider neostigmine-atropine trial; arrange ICU ventilation if needed.
Examiner checklist
- No harmful first aid (tourniquet/cut/suck)
- ASV indications correct
- Child dose = adult dose explained
- Adrenaline ready for ASV reaction
- Ventilation plan for progressive paralysis
- Tetanus status considered
Model standard
Neurotoxic bite: monitor/ventilate early, give ASV for systemic envenoming, supportive care is decisive for survival; ASV dose is not weight-based.
Common errors
- Waiting for species identification before ASV
- Weight-reducing ASV in children
- Delayed intubation