Correct Answer: D

Rationale: The correct answer is D. Clear breath sounds indicate that the pneumonia is resolving and the treatment is effective. Breath sounds are often muffled or crackling in pneumonia due to the presence of fluid or inflammation in the lungs. Clear breath sounds suggest that the air is moving freely through the lungs, indicating improvement. Choices A, B, and C are less specific indicators of pneumonia resolution. While less chest pain and a decreasing white blood cell count can be positive signs, they are not as direct in indicating the effectiveness of pneumonia treatment as the presence of clear breath sounds. A decreased respiratory rate could be seen in various conditions and may not solely indicate the resolution of pneumonia.

Correct Answer: A

Rationale: The correct answer is A. Projectile vomiting in a child with a headache could indicate increased intracranial pressure, requiring immediate attention. Choices B, C, and D do not present with symptoms indicating potentially life-threatening conditions that require urgent intervention.

Correct Answer: C

Rationale: The client's handwashing ritual is a compulsion, a repetitive behavior driven by the need to reduce anxiety associated with an obsession. In this case, the client's need to wash her hands excessively stems from an obsession with cleanliness, leading to the compulsive behavior of extensive handwashing. 'Addiction' (Choice A) involves a dependence on a substance or behavior, not related to this scenario. 'Phobia' (Choice B) is an intense fear of a specific object or situation, not applicable here. 'Obsession' (Choice D) refers to persistent and intrusive thoughts, while the handwashing behavior in this case is the compulsive action taken to alleviate the anxiety related to the obsession.

Correct Answer: A

Rationale: When obtaining a rectal temperature with an electronic thermometer, holding the thermometer in place is crucial. This action ensures accurate temperature measurement and prevents injury to the client. Option B, placing a disposable pad under the buttocks, is not the most important action; it may enhance comfort but does not impact the accuracy of the temperature reading. Option C, instructing the client to breathe deeply, is irrelevant to obtaining a rectal temperature. Option D, returning the probe to the charger, is an incorrect action after temperature measurement.

Correct Answer: C

Rationale: Subcutaneous emphysema is the most critical finding requiring immediate intervention in a client with a chest tube following a pneumothorax. It may indicate a pneumothorax recurrence or air leak, which can lead to respiratory compromise. Oxygen saturation of 94% is slightly low but may not require immediate intervention. Crepitus around the insertion site can be a normal finding post-procedure. Drainage of 50 ml per hour is within the expected range for a chest tube output and does not indicate an immediate concern.