Of the following, the condition which is associated with polyhydramnios is

Correct Answer: D

Rationale: Intestinal pseudo-obstruction can lead to polyhydramnios due to impaired fetal swallowing and gastrointestinal motility. The other conditions are not typically associated with excess amniotic fluid.

Correct Answer: C

Rationale: Approximately 90% of infants infected with hepatitis B at birth become chronic carriers due to an immature immune response, leading to prolonged viral persistence.

Correct Answer: D

Rationale: Innocent murmurs are typically ejection systolic, occurring during ventricular contraction and are usually benign.

Correct Answer: A

Rationale: Serious illness typically leads to tachycardia, increased respiratory effort, and use of accessory muscles, while blood pressure may drop in shock.

Correct Answer: C

Rationale: Acute leukemia commonly presents with fever (due to infections), pallor (from anemia), and purpura (from thrombocytopenia). Bone pain and lymphadenopathy are also common but not as defining as this triad.