Yuqori zichlikdagi lipoprotein xolesterini (HDL-C)
Kod:8013|CPT:83718|LOINC:2085-9
| Kabi | HDL xolesterini |
|---|
Tahlil ma'lumotlari
Tadqiqot usuli
- Fermentativ usul
- Fotometrik usul
Kutilayotgan natija topshirish vaqti
1 kun
Maxsus tayyorlik
- Infants younger than 1 year: withhold feeds for 30–40 minutes before collection
- Children 1–5 years: fast for 2–3 hours before the blood draw
- Older children and adults: fast for 12 hours; water is permitted
- Avoid vigorous physical activity and significant emotional stress for at least 30 minutes before collection
- Do not smoke during the 30 minutes prior to collection
Qanday foydalanish
Yuqori zichlikdagi lipoprotein xolesterini (HDL-C) testi — shuningdek HDL xolesterin yoki alfa-lipoprotein xolesterini deb ham yuritiladi — bazaviy aterosklerotik yurak-qon tomir kasalligi (ASCVD) xavfini tabaqalashtirishga yordam berish uchun standart lipid panellariga kiritiladi. HDL-C ateroskleroz bilan teskari bog‘liqlikni ko‘rsatadi; doimiy pasaygan HDL-C, ayniqsa gipertrigliseridemiya mavjud bo‘lganda, yurak-qon tomir xavfi ortishi bilan bog‘liq, yuqori HDL-C esa nisbatan himoyalovchi hisoblanadi. Ketma-ket HDL-C testlari ovqatlanishni o‘zgartirish va lipid pasaytiruvchi davolash, shu jumladan HDL-C ni oshirishga qaratilgan strategiyalar, ta’sirini kuzatish hamda HDL-C va jami xolesterin maqsadlariga erishish borasidagi ilg‘orlikni baholash uchun qo‘llanadi.
Cheklovlar
Xolesterin asosan jigar tomonidan ishlab chiqariladigan va ratsiondan olinadigan strukturaviy steroldir; u hujayra membranasi arxitekturasiga hissa qo‘shadi va steroid gormonlar hamda o‘t kislotalari uchun prekursor vazifasini bajaradi. Plazmada u juda past zichlikdagi lipoproteinlar (VLDL), past zichlikdagi lipoproteinlar (LDL) va yuqori zichlikdagi lipoproteinlar (HDL) sinflari tarkibida tashiladi. HDL zarrachalari oqsilga boy bo‘lib, xolesterinning kichikroq ulushini tashiydi. Ular teskari xolesterin transportida ishtirok etadi: periferik to‘qimalardan ortiqcha xolesterinni safro orqali chiqarib yuborilishi uchun jigarga qaytaradi. Yuqoriroq HDL-C konsentratsiyalari aterosklerotik blyashka to‘planishining kamroq bo‘lishi bilan korrelyatsiya qiladi, pasaygan HDL-C esa — jami xolesterin me’yorida bo‘lganda ham — aterosklerozning progressiyasi bilan bog‘liq.
| O'lchov birligi | mg/dL | ||||
|---|---|---|---|---|---|
| Referens oraliq |
| ||||
| Ko'rsatmalar | Preventive adult screening within a lipid panel beginning at age 20 years, with testing at intervals of at least every 5 years, Closer interval testing during dietary change or lipid-lowering pharmacotherapy to determine whether HDL-C and total cholesterol goals are being met, Cardiovascular risk evaluation when risk factors are present: tobacco use; age thresholds (men >45 years, women >55 years); hypertension (≥140/90 mm Hg); family history of premature cardiovascular disease (myocardial infarction or stroke in a male first-degree relative <55 years or a female first-degree relative <65 years); established coronary artery disease, prior myocardial infarction, or stroke; diabetes mellitus; overweight or obesity; alcohol misuse; high intake of saturated animal fats; physical inactivity, Selective pediatric screening between ages 2 and 10 years when there is a family history of hypercholesterolemia or premature cardiovascular disease |
Natija og'ishlarining mumkin sabablari
Oshgan daraja
- cholestyramine
- estrogens
- fibrates
- insulin
- phenobarbital
- pregnancy
- statins
Pasaygan daraja
- anabolic steroids
- androgens
- corticosteroids
- recent illness
- stress
Namunangiz talablari
| Namunangiz | Zardob |
|---|---|
| Container | Oltin/yo'lbars qopqoqli probirka (SST, gel ajratgich) |
| Hajm | 1 mL (min 0.7 mL) |
| Saqlash tayyorlik | Xona harorati, Sovutilgan, Muzlatilgan |