Low voltage electric shock usually causes death by:

Correct Answer: A

Rationale: Low-voltage shocks typically cause ventricular fibrillation, disrupting cardiac rhythm.

Correct Answer: C

Rationale: Kwashiorkor is a protein-calorie deficiency syndrome.

Correct Answer: D

Rationale: Mongolism (Down syndrome) is associated with congenital heart defects.

Correct Answer: D

Rationale: In cystic fibrosis (mucoviscidosis), lung disease (chronic infections, bronchiectasis) dominates.

Correct Answer: C

Rationale: Methemoglobinemia causes cyanosis from impaired oxygen binding.