A nurse in a clinic is reviewing the laboratory values of a client who has primary hypothyroidism.
Which of the following laboratory values should the nurse anticipate an elevation of?
Free T4
Serum T3
Serum T4
Thyroid stimulating hormone (TSH)
The Correct Answer is D
A. In primary hypothyroidism, the thyroid gland fails to produce sufficient thyroid hormone.
Consequently, free T4 levels are typically decreased.
B. Although serum T3 levels may also decrease in primary hypothyroidism due to impaired thyroid function, TSH is the primary marker used for diagnosis and monitoring.
C. Similarly, serum T4 levels may decrease in primary hypothyroidism due to decreased synthesis by the thyroid gland.
D. In primary hypothyroidism, the anterior pituitary gland releases more TSH to stimulate the thyroid gland to produce thyroid hormones. Therefore, elevated TSH levels are characteristic of primary hypothyroidism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Edema in chronic kidney failure is more closely associated with sodium and water retention rather than protein intake.
B. Hyperkalemia in chronic kidney failure can be managed by restricting dietary potassium intake, but it is not primarily related to protein intake.
C. A low-protein diet aims to decrease, not increase, nitrogenous wastes in the blood.
D. A low-protein diet reduces the risk for uremia, a condition resulting from chronic kidney failure where urea and other waste products build up in the body due to impaired renal function. A low-protein diet helps decrease the workload on the kidneys by reducing the amount of nitrogenous waste they need to filter and excrete.
Correct Answer is C
Explanation
A. Vasopressin does not typically affect blood pressure significantly.
B. Vasopressin is not used to lower blood sugar levels; it is primarily used for water retention.
C. Vasopressin, also known as antidiuretic hormone (ADH), acts on the kidneys to decrease urine output, making this the expected outcome of therapy.
D. Specific gravity of urine may increase with vasopressin therapy due to decreased urine output, rather than decrease.
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