Correct Answer: D

Rationale: The correct answer is D. A decrease in white blood cell count indicates that the infection is responding to treatment, making this the most objective indicator of improvement in a client with sepsis. Choices A, B, and C are subjective indicators and may not always directly correlate with the resolution of the underlying infection. While an increase in urine output, a client reporting feeling less fatigued, and a decrease in heart rate are positive signs, they are not as specific or directly related to the resolution of the infection as a decrease in white blood cell count.

Correct Answer: D

Rationale: The client's report of pain in a missing limb is consistent with phantom limb pain, which can be distressing. Encouraging the client to discuss his feelings helps address the emotional and psychological aspects of the amputation and supports his overall recovery. Teaching distraction techniques (choice A) may provide temporary relief but does not address the underlying emotional distress. Providing a soft blanket (choice B) is not the priority when dealing with phantom limb pain. Administering pain medication (choice C) may not effectively manage phantom limb pain as it is more related to central nervous system changes rather than tissue damage.

Correct Answer: D

Rationale: Elevating the head of the bed promotes lung expansion and improves oxygenation, making it the priority intervention for a client with shortness of breath. This position helps in maximizing lung expansion and aiding ventilation-perfusion matching in patients with COPD. Increasing the oxygen flow rate may be necessary but should come after optimizing the client's positioning. Notifying the healthcare provider and administering a bronchodilator are not the initial interventions for addressing shortness of breath in a client with COPD.

Correct Answer: D

Rationale: Sluggish and unequal pupillary responses are indicative of increased intracranial pressure (ICP) in a child with bacterial meningitis and hydrocephalus. This finding suggests that the optic nerve is being compressed due to increased ICP, causing a delay in pupillary reactions. Such a delay is a critical sign of worsening ICP and necessitates immediate intervention. Low blood pressure and increased respiratory rate can occur in various conditions but are less specific to increased ICP than sluggish and unequal pupillary responses, which directly reflect neurological compromise.

Correct Answer: B

Rationale: An epidural hematoma is characterized by a rapid onset of symptoms, including decreased level of consciousness, due to arterial bleeding, which differentiates it from other types of intracranial hemorrhage. Monitoring for clear fluid leakage from the nose (choice A) is more indicative of a basilar skull fracture and cerebrospinal fluid leak. Checking for bruising around the head and neck (choice C) is more suggestive of soft tissue injuries or facial fractures. Assessing for changes in pupil size and reactivity (choice D) is essential in evaluating traumatic brain injuries, but it is not specific to differentiating the vascular source of intracranial bleeding in an epidural hematoma.