A client with a temperature of 39°C (102.2°F) and a rash is being evaluated. Which condition should the nurse consider?
Meningococcal meningitis.
Urinary tract infection.
Gastroenteritis.
Osteoarthritis.
The Correct Answer is A
Choice A rationale
Meningococcal meningitis can present with a high fever (39°C or 102.2°F) and a rash, indicating a severe bacterial infection.
Choice B rationale
Urinary tract infections typically present with urinary symptoms, not a rash.
Choice C rationale
Gastroenteritis presents with gastrointestinal symptoms, not a rash.
Choice D rationale
Osteoarthritis is a degenerative joint disease and does not cause fever or rash.
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Correct Answer is A
Explanation
Choice A rationale
Elevated blood ammonia levels are a common consequence of liver dysfunction, particularly in conditions like cirrhosis and alcoholic liver disease. The liver is responsible for converting ammonia, a byproduct of protein metabolism, into urea, which is then excreted by the kidneys. When the liver is damaged, it cannot effectively perform this function, leading to elevated blood ammonia levels. High ammonia levels can cross the blood-brain barrier and cause hepatic encephalopathy, which manifests as confusion, memory loss, and asterixis (a flapping tremor of the hands). These neurological symptoms are consistent with the patient’s presentation.
Choice B rationale
An increased white blood cell count typically indicates an infection or inflammation. While infections can occur in patients with liver disease due to a compromised immune system, the symptoms described (increased blood glucose, blurred vision, memory loss, and asterixis) are more indicative of hepatic encephalopathy rather than an infection.
Choice C rationale
Elevated blood urea nitrogen (BUN) levels can occur in liver disease, but they are more commonly associated with kidney dysfunction. BUN is a measure of the amount of nitrogen in the blood that comes from the waste product urea. While liver dysfunction can affect BUN levels, the symptoms described are more specifically related to elevated ammonia levels and hepatic encephalopathy.
Choice D rationale
A decreased platelet count, or thrombocytopenia, is a common finding in liver disease due to splenic sequestration and decreased production of thrombopoietin. However, thrombocytopenia does not directly cause the neurological symptoms described in the patient. The symptoms of increased blood glucose, blurred vision, memory loss, and asterixis are more specifically related to elevated ammonia levels and hepatic encephalopathy.
Correct Answer is D
Explanation
ChoiceArationale
Post-renalacute kidneyinjury(AKI)iscausedbyobstructionofurineflow,leadingto decreased urine output, but it does not typically cause crackles in the lungs.
ChoiceBrationale
Diabetesinsipidus(DI)ischaracterizedbyexcessiveurinationandthirstduetoadeficiencyof antidiuretic hormone (ADH), but it does not cause crackles in the lungs.
ChoiceCrationale
Syndromeofinappropriateantidiuretichormone(SIADH)involvesexcessivereleaseofADH, leading to water retention and hyponatremia, but it does not cause crackles in the lungs.
ChoiceDrationale
Congestiveheartfailure(CHF)canleadtofluidaccumulationinthelungs(crackles)and decreased urine output due to poor cardiac function and renal perfusion.