Renin blood test

A blood sample is needed .

Certain medicines may affect the results of this test. Your health care provider will tell you if you need to stop taking any medicines. Do not stop any medicine before talking to your provider. Medicines that can affect renin measurements include: Birth control pills. Blood pressure drugs. Medicines that dilate blood…

When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing or a slight bruise. This soon goes away.

Renin is a protein ( enzyme ) released by special kidney cells when you have a decreased salt (sodium) level or low blood volume. Most often, the renin blood test is done at the same time as an aldosterone blood test to calculate the renin to aldosterone ratio. If you have high blood pressure , your doctor may order a…

For normal sodium diet, normal value range is 0.2 to 1.6 ng/mL/hour (0.2 to 1.6 µg/L/hour) while lying down and 0.5 to 4.0 ng/mL/hour (0.5 to 4.0 µg/L/hour) while standing. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your…

A high level of renin may be due to: Adrenal glands that do not make enough hormones ( Addison disease or other adrenal gland insufficiency) Bleeding (hemorrhage) Heart failure High blood pressure caused by narrowing of the kidney arteries ( renovascular hypertension ) Liver scarring and poor liver function (…

There is little risk involved with having your blood taken. Veins and arteries vary in size from one patient to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others. Other risks associated with having blood drawn are slight but may include: Excessive…

Guber HA, Oprea M, Russell YX. Evaluation of endocrine function. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods . 24th ed. Philadelphia, PA: Elsevier; 2022:chap 25. Weiner ID, Wingo CS. Endocrine causes of hypertension: aldosterone. In: Johnson RJ, Floege J, Tonelli…