Obstructive shock is characterized by which of the following?

Correct Answer: A

Rationale: Obstructive shock occurs due to conditions like cardiac tamponade or pulmonary embolism, which impede blood flow despite adequate intravascular volume. It leads to decreased cardiac output and tissue hypoperfusion.

Correct Answer: C

Rationale: A diagnosis of asthma is confirmed if recurrent symptoms improve with bronchodilator therapy.

Correct Answer: A

Rationale: Pleural friction rub is usually heard in both inspiratory and expiratory phases. Its presence suggests pleural inflammation, but excessive pleural fluid may mask it.

Correct Answer: D

Rationale: Lobar pneumonia causes consolidation, which leads to dullness on percussion rather than hyper-resonance. Other findings include bronchial breath sounds, crepitations, and increased vocal resonance.

Correct Answer: D

Rationale: While psychosis can be treated with antipsychotics, the use of typical antipsychotics is less common in children due to side effects; atypical antipsychotics are preferred.