A nurse is caring for a client with a temperature of 39°C (102.2°F) who presents with a stiff neck and photophobia. Which condition should the nurse suspect?

Choice A rationale
Increased shortness of breath is a key symptom of worsening congestive heart failure (CHF). It indicates that the heart is not effectively pumping blood, leading to fluid buildup in the lungs and increased respiratory effort.
Choice B rationale
A temperature of 37°C (98.6°F) is within the normal range and does not indicate worsening CHF. Monitoring the patient’s temperature is important, but it is not a sign of CHF exacerbation.
Choice C rationale
A blood pressure of 120/80 mmHg is within the normal range and does not indicate worsening CHF. Blood pressure should be monitored, but this reading does not suggest an acute issue.
Choice D rationale
Occasional dizziness can be a symptom of many conditions, including CHF, but it is not as specific or critical as increased shortness of breath. It should be monitored, but it does not indicate an immediate worsening of CHF.

Choice A rationale
Urine specific gravity of 1.029 indicates concentrated urine, which is common in dehydration but not specific to prerenal AKI. It reflects the kidney’s ability to concentrate urine in response to fluid deficit.
Choice B rationale
BUN of 28 mg/dL can indicate dehydration or renal impairment. However, it is not as specific as creatinine in diagnosing prerenal AKI. BUN can be elevated due to other factors like high protein intake or gastrointestinal bleeding.
Choice C rationale
Creatinine of 2.4 mg/dL is a critical indicator of kidney function. Elevated creatinine levels are more specific to renal impairment, including prerenal AKI, as they reflect the kidney’s ability to filter waste products.
Choice D rationale
Dry mucous membranes are a sign of dehydration but are not specific to prerenal AKI. They indicate fluid volume deficit but do not directly reflect kidney function.