A newly admitted client has been prescribed trimethoprim-sulfamethoxazole.
The nurse understands that this medication is contraindicated based on which lab result?
Serum fasting glucose of 101 mg/dL.
Platelets of 160,000 uL.
Hemoglobin of 13.6 g/dL.
Serum creatinine of 2.5 mg/dL.
The Correct Answer is D
Choice A rationale
A serum fasting glucose of 101 mg/dL is slightly above the normal range (70-100 mg/dL), indicating a possible prediabetes condition. However, it is not a contraindication for trimethoprim-sulfamethoxazole.
Choice B rationale
A platelet count of 160,000 uL is within the normal range (150,000-450,000 uL). Therefore, it is not a contraindication for trimethoprim-sulfamethoxazole.
Choice C rationale
A hemoglobin level of 13.6 g/dL is within the normal range for both men (13.5-17.5 g/dL) and women (12.0-15.5 g/dL). Thus, it is not a contraindication for trimethoprim-sulfamethoxazole.
Choice D rationale
A serum creatinine level of 2.5 mg/dL is above the normal range (0.6-1.2 mg/dL for men, 0.5- 1.1 mg/dL for women), indicating impaired kidney function. Trimethoprim-sulfamethoxazole is contraindicated in patients with severe renal insufficiency.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Febrile and shallow respirations are not typically associated with uncontrolled diabetes mellitus and ketoacidosis. These symptoms could be indicative of a different medical condition.
Choice B rationale
An increased rate and depth of respiration, also known as Kussmaul breathing, is a common clinical manifestation in patients with uncontrolled diabetes mellitus and ketoacidosis.
Choice C rationale
Weakness and weight gain are not typically associated with uncontrolled diabetes mellitus and ketoacidosis. These symptoms could be indicative of a different medical condition.
Choice D rationale
Extremity tremors followed by seizure activity are not typically associated with uncontrolled diabetes mellitus and ketoacidosis. These symptoms could be indicative of a different medical condition.
Correct Answer is C
Explanation
Choice A rationale
The client’s fasting blood glucose level, postprandial blood glucose level, and hemoglobin A1c level are all within the target range for good blood glucose control in diabetes. Therefore, the client is not at an increased risk for developing hypoglycemia.
Choice B rationale
Insulin resistance is a characteristic of type 2 diabetes, not type 1 diabetes. The client’s blood glucose levels are well controlled, which suggests that the client’s insulin regimen is effective, not that the client is demonstrating signs of insulin resistance.
Choice C rationale
The client’s fasting blood glucose level, postprandial blood glucose level, and hemoglobin A1c level are all within the target range for good blood glucose control in diabetes. Therefore, the client is demonstrating good control of blood glucose.
Choice D rationale
The client’s fasting blood glucose level, postprandial blood glucose level, and hemoglobin A1c level are all within the target range for good blood glucose control in diabetes. Therefore, the client is not at an increased risk for developing hyperglycemia.
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