Matching: Anesthesia drugs

Correct Answer: B

Rationale: Succinylcholine is associated with malignant hyperthermia, a life-threatening reaction with symptoms such as muscle rigidity and high fever.

Correct Answer: A

Rationale: First-generation antihistamines cross the blood-brain barrier and commonly cause sedation.

Correct Answer: C

Rationale: Hirschsprung disease is caused by the absence of ganglion cells in the distal colon, leading to functional obstruction, delayed meconium passage, and bilious vomiting. Diagnosis is confirmed with a rectal biopsy.

Correct Answer: A

Rationale: Enuresis is clinically defined as involuntary urination at least twice weekly for three consecutive months in children aged 5 or older.

Correct Answer: C

Rationale: Brain damage from drowning typically begins after 4-6 minutes of submersion, with significant damage occurring by 30 minutes due to anoxic injury and cerebral hypoxia.