A 65-year-old man is recently diagnosed with squamous cell carcinoma of the lung. He is found to have a high calcium level of 14.0 mg/dL. Along with starting aggressive IV fluids Which of the following is the best medication to provide a sustained calcium-lowering effect in this patient?
سؤال مجاني 6 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: A. IV Bisphosphonate
After IV saline, an IV bisphosphonate blocks osteoclast bone resorption and gives a sustained fall in calcium in malignancy-associated hypercalcaemia. Calcitonin acts rapidly but is given only for 24-48 h. Oral alendronate is too slow for acute care, and steroids are for granulomatous or lymphoma-related causes.
ليش كل خيار صح أو غلط
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A
ليش صح
For severe hypercalcemia (calcium above 14) the notes use IV fluids plus bisphosphonates, which decrease bone resorption and prevent further hypercalcemia.
✓ 3• Parathyroid Disorders [Notes].pdf · p. 11 -
B
ليش غلط
Calcitonin is given for only 24 to 48 hours (4 IU/kg SC every 12 h), a short course, so it is not the agent chosen for sustained lowering.
✓ Calcium and Parathyroid.pdf · p. 55 -
C
ليش غلط
The acute-hypercalcemia medication list specifies Bisphosphonate IV, not an oral bisphosphonate.
✓ Calcium and Parathyroid.pdf · p. 55 -
D
ليش غلط
Glucocorticoids work in vitamin D-related causes (granulomatous disease) and myeloma, and are ineffective in most other forms of hypercalcemia; his is due to lung cancer.
✓ Step_Up_To_Medicine_6th,_2024_Electrolytes_Na,K_Imbalance.pdf · p. 9
- المصدر
- 3• Parathyroid Disorders [Notes].pdf · p. 11
Calcium and Parathyroid.pdf · p. 55 - المحاضرة
- Parathyroid & Calcium Disorders · Endocrinology · Module B
- ظهر في
- Endo bank