34.下列何者最不可能造成腎性尿崩症(nephrogenic diabetes insipidus)?
(A)cidofovir
(B)foscarnet
(C)hydrochlorothiazide
(D)lithium
統計: A(626), B(413), C(1661), D(377), E(0) #2741974
詳解 (共 8 筆)
【尿崩症治療小整理】
- 中樞性尿崩症治療: Desmopressin
- 腎因性尿崩症治療: Thiazide類
- 利尿劑Li+導致的尿 崩症治療: Amiloride(保鉀型利尿劑)
thiazide利尿劑 (hydrochlorothiazide 25 mg QD-BID)用於腎因性尿崩症的機轉:首先 thiazide利尿劑作用於遠曲小管,抑制NaCl co-transporter ,增加 Na+Cl-的排除,增加尿液的排除 (到這裡應該都沒問題),然後這樣的結果會導致細胞外液 (extracellular fluid volume)減少 (如圖),造成輕度血容量不足 (mild volume depletion, hypovolemia),低血容量會降低 eGFR (腎絲球過濾率)、誘導近端腎小管 (proximal tubular)增加鈉水的再吸收,減少流到後端遠端腎小管、急尿管的水分,最後達到減少尿液的目的。
Nephrogenic DI can be caused by a number of drugs other than lithium. These include cidofovir and foscarnet which are used to treat cytomegalovirus infection in HIV-infected patients [61,62], and vasopressin V2 receptor antagonists, which induce a transient state of nephrogenic DI that can be used to treat hyponatremia and autosomal dominant polycystic kidney disease [63-65], amphotericin B, demeclocycline, ifosfamide, ofloxacin, orlistat, and didanosine [5,66]. Drug-induced nephrogenic DI is typically reversible, at least in part.
ref : UpToDate-Clinical manifestations and causes of nephrogenic diabetes insipidus