The drug contraindicated in children with hypertrophic cardiomyopathy is

Correct Answer: C

Rationale: Digitalis (digoxin) is contraindicated in hypertrophic cardiomyopathy as it can increase left ventricular outflow obstruction.

Correct Answer: B

Rationale: The safe correction rate for hypernatremia is no more than 12 mmol/L per 24 hours to prevent cerebral edema caused by rapid osmotic shifts.

Correct Answer: A

Rationale: Breath-holding spells are often linked to iron deficiency anemia and typically resolve by age 5. They are not seizures or solely expressed as tonic movements.

Correct Answer: D

Rationale: Perfectionism within the classroom is not a typical risk factor for completed suicides. Common risk factors include prior attempts, substance abuse, family history of depression or suicide, and access to lethal means.

Correct Answer: A

Rationale: Serious illnesses often cause compensatory responses like tachycardia and increased respiratory rate, but blood pressure may not necessarily rise, especially in shock.