A 75-year-old woman is brought to the emergency department after being found unconscious by her son. The woman has a history of type 2 diabetes, Blood drawn demonstrates a plasma glucose of 950 mg/dL Which of the following additional findings would be most consistent with the patient possible diagnosis?
سؤال مجاني 5 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: C. Serum osmolality 380 mOsmol/kg
An elderly type 2 diabetic, unconscious, with glucose 950 mg/dL is in HHS, which is defined by serum osmolality >320 mOsm/kg, so 380 fits. Ketones are absent or minimal in HHS (unlike DKA), and BUN is usually raised (prerenal azotemia), not 5 mg/dL.
ليش كل خيار صح أو غلط
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A
ليش غلط
In HHS the BUN is usually elevated (prerenal azotaemia), so a BUN of 5 does not fit.
✓ Endocrine ✳️.pdf · p. 6 -
B
ليش غلط
Strongly positive ketones suggest DKA; in HHS acidosis and ketosis are absent (unlike in DKA).
✓ Endocrine ✳️.pdf · p. 6 -
C
ليش صح
HHS is defined by hyperosmolarity, serum osmolarity above 320 mOsm/L, with acidosis and ketosis absent. 380 fits.
✓ Endocrine ✳️.pdf · p. 6 -
D
ليش غلط
Sodium falls about 1.6 mEq/L for every 100 mg/dL rise in glucose, so a sodium of 132 is expected with marked hyperglycaemia and is non-specific.
✓ Step Up To Medicine 6th Edition 2024 (DM).pdf · p. 16
- المصدر
- Endocrine ✳️.pdf · p. 6
- المحاضرة
- DKA & HHS · Endocrinology · Module B
- ظهر في
- Endo bank