All are true regarding croup except:

Correct Answer: C

Rationale: Croup is more common in males, affecting young children with a characteristic barking cough and stridor. Parainfluenza virus is the leading cause, with peak incidence around 6 months to 3 years.

Correct Answer: A

Rationale: Intermittent asthma is defined as symptoms occurring less than twice per week.

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.

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: C

Rationale: Intrauterine growth retardation is uncommon in infants of diabetic mothers