Major depression is characterized by

Correct Answer: D

Rationale: Major depression includes core symptoms like weight changes, sleep disturbances, and dysphoric mood. All listed options are possible features of the disorder.

Correct Answer: A

Rationale: Family planning initiatives can help manage population growth by educating individuals about reproductive health and contraception.

Correct Answer: C

Rationale: Obstructive shock is caused by physical obstruction to blood flow. Severe aortic stenosis limits cardiac output, leading to inadequate systemic perfusion.

Correct Answer: D

Rationale: Nebulized adrenaline is commonly used in croup to reduce airway edema, improving airflow and reducing respiratory distress.

Correct Answer: B

Rationale: Aplastic anemia results from bone marrow failure, leading to a reduced reticulocyte count, unlike hemolytic conditions where reticulocytes are increased.