A nurse is caring for a client who has diabetes mellitus. Which of the following laboratory findings indicates the client has maintained control of his blood glucose levels for the past 3 months?
HbA1c 6.5%
HbA1c 12.5%
Fasting blood glucose 100 mg/dL
Fasting blood glucose 70 mg/dL
The Correct Answer is A
Choice A reason: HbA1c or glycated hemoglobin is a measure of average blood glucose levels over the past 2 to 3 months. A lower HbA1c indicates better glycemic control and a lower risk of diabetes complications. The target HbA1c for most people with diabetes mellitus is less than 7%.
Choice B reason: HbA1c 12.5% is very high and indicates poor glycemic control and a high risk of diabetes complications, such as retinopathy, nephropathy, or neuropathy.
Choice C reason: Fasting blood glucose 100 mg/dL is within the normal range of 70 to 99 mg/dL and indicates normal glucose metabolism, but it does not reflect the long-term control of blood glucose levels over the past 3 months.
Choice D reason: Fasting blood glucose 70 mg/dL is at the lower end of the normal range and may indicate hypoglycemia or low blood glucose levels, which can cause symptoms such as sweating, trembling, hunger, or confusion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A: This is incorrect because hyperactive deep tendon reflexes are not associated with low serum calcium levels. Hyperactive deep tendon reflexes can indicate hypomagnesemia, hyperthyroidism, or spinal cord injury.
Choice B: This is incorrect because hypoactive bowel sounds are not associated with low serum calcium levels. Hypoactive bowel sounds can indicate ileus, peritonitis, or opioid use.
Choice C: This is correct because positive Chvostek's sign is associated with low serum calcium levels. Positive Chvostek's sign is a facial muscle spasm that occurs when tapping on the cheek near the ear. It indicates hypocalcemia, which can be caused by hemodialysis, renal failure, or parathyroid dysfunction.
Choice D: This is incorrect because lethargy is not associated with low serum calcium levels. Lethargy can indicate hypercalcemia, dehydration, hypoglycemia, or infection.
Correct Answer is D
Explanation
Choice A reason: Filling the pad with sterile water is not necessary, as tap water can be used for an aquathermia pad without increasing the risk of infection or contamination.
Choice B reason: Using safety pins to secure the pad in place is not appropriate, as they can puncture or damage the pad and cause leakage or electric shock.
Choice C reason: Applying the pad for 45 min at a time is not recommended, as it can cause skin burns or tissue damage due to prolonged exposure to heat. The nurse should apply the pad for no more than 20 min at a time and check the skin frequently for signs of redness or blistering.
Choice D reason: Covering the pad prior to use is an important action, as it can prevent direct contact between the pad and the skin and reduce the risk of burns or irritation. The nurse should use a towel or a cloth to cover the pad before applying it to the affected area.
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