Question

Patient has fatigue. But not gaining weight. Body was warm. Investigation will show:

• A. Low TSH with more t₃ or t₄
• B. High TSH with normal t₃ or t₄
• C. High TSH with euthyroid
• D. Increased uptake of t₃, but decrease t₄

Answer 1

The Correct Option is A

In evaluating a patient's thyroid function, certain symptoms and test results can point towards specific conditions. The patient described presents with fatigue, no weight gain, and a warm body temperature. These signs are suggestive of hyperthyroidism, a condition characterized by excessive thyroid hormone production.

To determine the thyroid status, we analyze the levels of Thyroid-Stimulating Hormone (TSH) and thyroid hormones like triiodothyronine (t₃) and thyroxine (t₄):

• Low TSH: In hyperthyroidism, the pituitary gland's production of TSH decreases because the body already has an excess of thyroid hormones, which provide negative feedback to the pituitary.
• Elevated t₃ or t₄: These hormones are elevated due to the increased production from the thyroid gland, leading to symptoms like fatigue, warmth, or weight loss.

Thus, in the context of hyperthyroidism, the best investigative results that correspond with the clinical presentation are: Low TSH with more t₃ or t₄.