Table 3 16 -point snake bite severity score grading criteria

• Signs within normal limits

0

• Minimal: Mild tachypnea, consistent with pain response

1

• Moderate: Marked tachypnea and/or slightly increased respiratory effort

2

• Severe: Extreme tachypnea and or respiratory insufficiency/failure

3

• Signs within normal limits

0

• Minimal: Tachycardia consistent with pain, general weakness, hypertension

1

• Moderate: Tachycardia, hypotension with tarsal pulse still palpable

2

• Severe: Extreme tachycardia, hypotension with non-palpable tarsal pulse or systolic blood pressure < 80mmgHg, arrhythmia or cardiac arrest

3

• Signs within normal limits

0

• Mild: Pain, swelling, ecchymosis, erythema limited to bite site

1

• Moderate: Pain, swelling, or ecchymosis involving less than half the extremity and may be spreading slowly

2

• Severe: Pain, swelling, or ecchymosis involving most or all of one extremity and is spreading rapidly

3

• Very severe: Pain, swelling, or ecchymosis extending beyond affected extremity (in case of head: extending to the neck)

4

• Signs within normal limits

0

• Minimal: Abdominal pain, tenesmus,

1

• Moderate: Vomiting or diarrhoea

2

• Severe: Repetitive vomiting, diarrhea, haematemesis, or haematochezia

3

• Bright, alert, responsive (BAR)

0

• Minimal: Quiet, alert, responsive (QAR)

1

• Moderate: Lethargic

2

• Severe: Extreme lethargy, collapse

3

Total Score

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