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126. 高血鈣(hypercalcemia)的鑑別診斷,以下哪一項不正確?
(A) Vitamin A intoxication可能造成副甲狀腺荷爾蒙(PTH)低的高血鈣症
(B) 如果短期急性出現高血鈣症且PTH值偏低,應該先考慮惡性腫瘤
(C) 約有 10% 以lithium 治療 bipolar depression 的病人可能產生高血鈣症
(D) Calcimimetics可以下降PTH的分泌,降低血鈣, 增加骨密度
(E) 甲狀腺功能亢進或腎上腺功能低下都可能引起高血鈣症


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 【站僕】摩檸Morning:請問這題怎麼解?
倒數 19時 ,已有 1 則答案
. 大三上 (2021/09/30):

(A)正確,Vitamin A intoxication之高血鈣為high bone turnover之hypercalcemia,因此PTH level應該較低

(B) 正確,高血鈣最常見的兩個原因為惡性腫瘤及PTH

Whenever hypercalcemia is confirmed, a definitive diagnosis must be established. Although HPT, a frequent cause of asymptomatic hypercalcemia, is a chronic disorder in which manifestations, if any, may be expressed only after months or years, hypercalcemia can also be the earliest manifestation of malignancy, the second most common cause of hypercalcemia in the adult. The causes of hypercalcemia are numerous but HPT and cancer account for 90% of all cases. 

(C)正確,lithium可能造成parathyroid hyperplasia,因此造成高血鈣

(D)錯誤,會降低血中PTH,及Calcium level, 但也會造成adynamic bone disease,無法改善骨密度

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126. 高血鈣(hypercalcemia)的鑑別診斷,以下哪一項不正確? ..-阿摩線上測驗