45-year-old women came with fatigue, no cons pa on or change in bowel movements. On examination no dry skin, normal eye exam. Na (135) TSH (14) T4(normal)
سؤال مجاني 7 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: A. Subclinical hypothyroidism
Raised TSH with a normal T4 is the definition of subclinical hypothyroidism: the failing thyroid is still kept in the normal range by extra TSH, so symptoms are mild or nonspecific (fatigue only here). Primary (overt) hypothyroidism would need a low T4. Secondary/tertiary disease gives a low or inappropriately normal TSH, and subclinical hyperthyroidism gives a low TSH.
ليش كل خيار صح أو غلط
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A
ليش صح
Subclinical hypothyroidism: extra TSH keeps T4 within the normal range, so TSH is elevated and T4 normal, with only mild or nonspecific symptoms (fatigue here).
✓ Step Up To Medicine 6th Edition 2024 (Thyroid).pdf · p. 9 -
B
ليش غلط
Overt primary hypothyroidism has a low free T4; the T4 is normal here, which is the subclinical pattern.
✓ Step Up To Medicine 6th Edition 2024 (Thyroid).pdf · p. 9 -
C
ليش غلط
Secondary or tertiary hypothyroidism has a low TSH (pituitary/hypothalamic disease); this patient's TSH is high (14).
✓ Step Up To Medicine 6th Edition 2024 (Thyroid).pdf · p. 9 -
D
ليش غلط
Subclinical hyperthyroidism has a low TSH with normal T3/T4; here TSH is high (14).
✓ Endocrine ✳️.pdf · p. 11
- المصدر
- Step Up To Medicine 6th Edition 2024 (Thyroid).pdf · p. 9
1• Hypothyroidism [Notes].pdf · p. 6 - المحاضرة
- Thyroid Disorders · Endocrinology · Module B
- ظهر في
- Endo bank