The nurse is caring for a patient who was diagnosed 2 days ago with hypothyroidism and has not yet been started on a drug regimen
Which of the following laboratory findings would the nurse most likely anticipate being consistent with a patient with hypothyroidism?
a. Low serum T4 and elevated TSH
b. High serum T4 and high TSH
c. Low serum T4 and low TSH
d. High serum T4 and low TSH
ANS: A
Lab findings consistent with hypothyroidism are a T4 level under 4.5 mcg/dL and a TSH level above 6 microunits/mL. T4 would have to be low and TSH would have to be high as a result of the hypothyroidism.
With hypothyroidism, the T4 is low and the TSH is high.
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