A physician ordered T3 and T4 tests for a young woman complaining of fatigue, weight gain, muscle aches and pains, and constipation. Which laboratory test results will help confirm the di-agnosis of hypothyroidism?
a. Both tests show decreases.
b. Both tests show increases.
c. The T3 test elevates, and the T4 test de-creases.
d. The level of thyroxin rises and then falls back to subnormal levels.
A
These complaints are strongly suggestive of thyroid disorder; T3 and T4 laboratory diagnostic tests are the most useful.
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