Correct Answer: C

Rationale: Clients with diabetic ketoacidosis typically present with elevated blood glucose levels, often above 300 mg/dL. This high blood glucose level, along with other symptoms, helps confirm the diagnosis of DKA. A pH level of 7.45 would be indicative of alkalosis, not the acidosis seen in DKA. A serum calcium level of 15 mg/dL is significantly elevated and is not a typical finding in DKA. A sodium level of 120 mEq/L indicates hyponatremia, which is not a characteristic laboratory finding in DKA.

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: C

Rationale: The correct intervention for a client with diabetes mellitus experiencing tingling in their feet is to teach the client about blood sugar control and foot care. This is essential because tingling in the feet can be a sign of neuropathy, a common complication of diabetes. Educating the client on maintaining proper blood sugar levels and foot care practices can help manage neuropathy symptoms and prevent complications like ulcers or infections. Advising the client to avoid tight shoes (Choice A) may help with comfort but does not address the underlying issue. Referring the client to a podiatrist (Choice B) is important for foot care but does not directly address blood sugar control. Administering insulin (Choice D) is not the priority for managing tingling in the feet related to neuropathy.

Correct Answer: D

Rationale: Hyperemesis gravidarum, characterized by severe nausea and vomiting, leads to dehydration and electrolyte imbalances. The priority intervention is initiating IV fluids to correct these imbalances. Providing emotional support is important for the client's well-being, but addressing fluid and electrolyte imbalances takes precedence. Monitoring daily weight and encouraging small frequent meals are beneficial interventions but are not the priority when managing hyperemesis gravidarum.

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.