A nurse is checking the laboratory results of a client who is at risk for diabetes mellitus. Which of the following laboratory results indicates to the nurse that the client is at risk for diabetes mellitus?
2-hr blood glucose 132 mg/dL.
HbA1c 5.2%.
Casual blood glucose 178 mg/dL.
Fasting blood glucose 155 mg/dL. .
The Correct Answer is D
Choice A rationale
A 2-hour blood glucose level of 132 mg/dL is below the threshold for diabetes diagnosis, which is 200 mg/dL or higher.
Choice B rationale
An HbA1c level of 5.2% is within the normal range. Diabetes is diagnosed with an HbA1c of 6.5% or higher.
Choice C rationale
A casual blood glucose level of 178 mg/dL is elevated but not diagnostic of diabetes. Diabetes is diagnosed with a casual blood glucose level of 200 mg/dL or higher.
Choice D rationale
A fasting blood glucose level of 155 mg/dL is above the threshold for diabetes diagnosis, which is 126 mg/dL or higher. This indicates that the client is at risk for diabetes mellitus.
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Correct Answer is C
Explanation
Choice A rationale
Cabbage is not a significant source of potassium. While it is a healthy vegetable, it does not provide the necessary potassium to help raise serum potassium levels.
Choice B rationale
Cheddar cheese is also not a high-potassium food. It is rich in calcium and protein but does not significantly contribute to potassium intake.
Choice C rationale
Bananas are well-known for their high potassium content. Including bananas in the diet can help increase serum potassium levels, which is beneficial for a client taking furosemide, a diuretic that can cause potassium loss.
Choice D rationale
Potatoes are another excellent source of potassium. However, the question specifies choosing one food, and bananas are a more commonly recommended option for increasing potassium intake.
Correct Answer is C
Explanation
Choice A rationale
Potassium iodide is used to treat hyperthyroidism and protect the thyroid gland from radiation, but it does not help lower serum potassium levels.
Choice B rationale
Lactulose is a laxative used to treat constipation and hepatic encephalopathy, but it does not affect serum potassium levels.
Choice C rationale
Sodium polystyrene sulfonate is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, thereby lowering serum potassium levels.
Choice D rationale
Acetylcysteine is used as a mucolytic agent and to treat acetaminophen overdose, but it does not have any effect on serum potassium levels.