Ionlangan kalsiy
Kod:8045
| Kabi | Ionlangan kalsiy |
|---|
Tahlil ma'lumotlari
Tadqiqot usuli
- Ion-selektiv elektrod (ISE)
Kutilayotgan natija topshirish vaqti
1 kun
Maxsus tayyorlik
- Do not eat for 12 hours before the blood draw.
- For 30 minutes before collection, avoid physical exertion and minimize emotional stress.
- Do not smoke during the 30 minutes preceding collection.
- Collect venous blood under anaerobic conditions and prevent exposure of the specimen to air.
- Keep the collection tube sealed until analysis is performed.
Qanday foydalanish
Ionlangan kalsiy testi (erkin yoki bog'lanmagan kalsiy) umumiy kalsiy faol fraksiyani ishonchli aks ettirmagan hollarda, ayniqsa gipoalbuminemiya yoki oqsillarga bog'lanishni o'zgartiradigan kislota–ishqor buzilishlarida qo'llaniladi. Bu sharoitlarda ionlangan kalsiy kalsiy gomeostazi buzilishini tashxislash va boshqarishni qo'llab-quvvatlaydi. Seriyali ionlangan kalsiy o'lchovlari og'ir ahvoldagi bemorlarda va katta hajmli infuziya yoki transfuziya vaqtida o'rnini bosish strategiyalarini yo'naltirish va aritmiyalar, neyromushak qo'zg'aluvchanligi hamda ong holatining o'zgarishi kabi xatarlarni kamaytirish uchun zarur bo'lishi mumkin. Oqsillarga bog'lanish va kislota–ishqor muvozanati barqaror bo'lsa, umumiy kalsiy ko'pincha ionlangan kalsiyga yaqinlashadi; ular barqaror bo'lmaganda, ionlangan kalsiy bo'yicha tekshiruv afzal ko'riladi.
Cheklovlar
Kalsiy suyak mineralizatsiyasi, neyromushak uzatilishi, skelet va yurak mushaklarining qisqarishi hamda koagulyatsiya kaskadida ishtirok etadi. Ionlangan (erkin, bog'lanmagan, dializlanadigan) fraksiya qon aylanishidagi umumiy kalsiyning taxminan 46%–50% ini tashkil etadi va biologik ta'sirlarni bevosita ta'minlaydi. Ionlangan kalsiy qon pH si bilan teskari o'zgaradi; pH har 0.1 birlikka pasayganda, ionlangan kalsiy taxminan 1.5%–2.5% ga oshadi. Ionlangan kalsiy zardob oqsillari kontsentratsiyasiga bog'liq emasligi sababli, albumin past bo'lganda kalsiy fiziologiyasining yanada ishonchli ko'rsatkichini beradi. Gipoalbuminemik bemorlarda ionlangan kalsiy umumiy kalsiy o'lchovlariga qaraganda birlamchi giperparatireozni yaxshiroq aks ettirishi mumkin.
| O'lchov birligi | mmol/L | ||||
|---|---|---|---|---|---|
| Referens oraliq |
| ||||
| Ko'rsatmalar | Clarification of calcium status when total calcium is confounded by low albumin or disordered acid–base balance, Workup of suspected hypercalcemia presenting with asthenia, anorexia, constipation, polyuria, vomiting, or polydipsia, Assessment of suspected hypocalcemia with abdominal cramping, digital tremor, muscle fasciculations, perioral and acral paresthesias, and carpopedal spasm, Ongoing monitoring in critical illness and during administration of large volumes of intravenous fluids or blood products, Preoperative evaluation of calcium balance, Conditions that alter serum albumin concentrations |
Natija og'ishlarining mumkin sabablari
Oshgan daraja
- calcium salts
- hydralazine
- injectable contraceptives
- lithium
- thiazide diuretics
- thyroxine
Pasaygan daraja
- advanced age
- aerated specimen
- alkalosis
- anticonvulsants
- danazol
- foscarnet
- furosemide
- oral contraceptives
Namunangiz talablari
| Namunangiz | Zardob |
|---|---|
| Container | Oltin/yo'lbars qopqoqli probirka (SST, gel ajratgich) |