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Poison acts more rapidly when

Question and options

Poison acts more rapidly when
  1. Inhaled in gaseous state
  2. Injected intramuscularly
  3. Injected subcutaneously
  4. Injected intra-arterially

Answer and explanation

Correct answer: A - Inhaled in gaseous state
Absorption is fastest by inhalation of gases (huge alveolar surface, direct entry into arterial blood), so a poison acts most rapidly when inhaled in gaseous form; intramuscular and subcutaneous routes are slower.

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