Aldosterone test

Aldosterone test maesures the level of aldosterone hormone in the blood. Aldosterone performs the task of maintaining optimal levels of sodium and potassium in the blood by maintaining water balance and blood volume. Elevated levels of aldosterone are indicative of aldosteronism or hyperaldosteronism. The presence of a tumor may bring about high levels of aldosterone. Low levels of aldosterone may suggest diabetes or Addison's disease. Pregnant women may notice high values of aldosterone in the blood.

Medications such as corticosteroids, diuretics, female hormones and hypertension drugs can affect the results of aldosterone test. Even the body posture can affect aldosterone levels in the blood. The amount of salt consumed can cause changes in blood aldosterone levels. Aldosterone test is conducted to study any possible overactivity of adrenal glands. Aldosterone test is conducted on a blood sample or 24 hour urine sample. Normal aldosterone range for urine is 2-80 mg/24 hr. Typical blood aldosterone range is 3-10 ng/dL when the patient is in supine position and 5 - 20 ng/dL when sitting upright.