Which of the following is a feature of early (compensated) shock:

Correct Answer: B

Rationale: Tachycardia is an early compensatory mechanism in shock before hypotension or altered consciousness occurs.

Correct Answer: D

Rationale: Carbonated beverages are not directly linked to causing anxiety in children, unlike the other options.

Correct Answer: D

Rationale: A click suggests structural heart disease, such as aortic or pulmonary stenosis. Pathological murmurs are often associated with abnormal heart sounds, unlike benign murmurs that change with position or respiration.

Correct Answer: A

Rationale: Not all children present with the classic triad of cough, wheezing, and decreased breath sounds. Some cases may be asymptomatic or present atypically, necessitating bronchoscopy for confirmation.

Correct Answer: C

Rationale: Around 3 months of age, an infant begins to recognize familiar faces and objects, including a feeding bottle.