Chronic fatigue syndrome (CFS) is usually associated with comorbid psychiatric disorders. Of the following, the psychiatric disorder that is often associated with CFS is

Correct Answer: B

Rationale: Depression is commonly associated with chronic fatigue syndrome, as both conditions share overlapping symptoms such as fatigue and low mood.

Correct Answer: D

Rationale: Cromolyn prevents mast cell degranulation, has no bronchodilator effects, and has a low incidence of adverse effects.

Correct Answer: D

Rationale: The encircling technique provides effective chest compressions in infants and children. It involves using both thumbs while the hands encircle the chest, ensuring better compression depth and recoil.

Correct Answer: C

Rationale: Metabolic acidosis due to bicarbonate loss triggers respiratory compensation via hyperventilation (Kussmaul breathing) to reduce CO2 levels.

Correct Answer: D

Rationale: Stage 1 hypertension in children is defined as blood pressure levels between the 95th and 99th percentile for age, height, and sex.