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 B
Explanation
A. Administering corticosteroids is crucial during an Addisonian crisis but typically involves intravenous corticosteroids (not oral) during the crisis to quickly restore hormone levels. Oral corticosteroids are part of regular maintenance therapy but not an immediate intervention in the crisis.
B. Weighing the client daily is important to monitor for potential fluid loss, dehydration, or weight changes related to Addison's disease and Addisonian crisis. Clients with Addison’s disease may experience fluid and electrolyte imbalances, so daily weight tracking helps detect early signs of fluid shifts, which are critical in crisis prevention and management.
C. A low-carbohydrate diet is not recommended for clients with Addison’s disease, as they may need a balanced diet with sufficient carbohydrates to prevent hypoglycemia.
D. Fluid intake should not be restricted; rather, maintaining adequate hydration is vital. Clients in Addisonian crisis are often at risk for dehydration due to fluid losses and low aldosterone levels, making fluid replacement essential.
Correct Answer is A
Explanation
A. Lethargy is a common symptom of hypothyroidism due to decreased metabolic rate and energy levels.
B. Photophobia is not typically associated with hypothyroidism.
C. Weight gain is more common in hypothyroidism due to slowed metabolism, rather than weight loss.
D. Exophthalmos is a characteristic feature of hyperthyroidism, not hypothyroidism.
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