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Aldosterone-to-Renin Ratio

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Aldosterone Renin Ratio Test Overview

The aldosterone-to-renin ratio (ARR), that is the ratio of plasma aldosterone to plasma renin activity (PRA) is a measure of the balance between two hormones: aldosterone and plasma renin activity (PRA). Aldosterone is a hormone produced by the adrenal glands that helps regulate salt and water balance in the body, while renin is an enzyme produced by the kidneys that regulate blood pressure.

The ratio of aldosterone to renin in the bloodstream can provide information about the functioning of the renin-angiotensin-aldosterone system (RAAS), which is a complex hormonal system that regulates blood pressure and fluid balance in the body.

The Aldosterone/PRA ratio is often used as a diagnostic tool to help identify underlying causes of high blood pressure, such as primary aldosteronism, also known as Conn's syndrome. In this condition, the adrenal glands produce too much aldosterone, which can cause high blood pressure and other health problems.

A high aldosterone/PRA ratio may indicate that there is an excess of aldosterone in the body, while a low ratio may indicate a deficiency. This can help doctors determine the most appropriate treatment plan.

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Aldosterone-to-Renin Ratio Price

Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the Aldosterone-to-Renin Ratio with a clear pricing structure.

The Aldosterone-to-Renin Ratio Price in Mumbai is ₹ 7,300 .

We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.

Frequently Asked Questions

The Aldosterone/PRA Ratio measures the ratio of two components in blood: aldosterone and renin activity.

The Aldosterone/PRA ratio is done for the following reasons:

  1. To diagnose primary hyperaldosteronism: This test helps in the diagnosis of primary hyperaldosteronism, a condition in which the adrenal glands produce too much aldosterone hormone.
  2. To differentiate between primary and secondary hyperaldosteronism: Primary hyperaldosteronism is caused by a problem in the adrenal glands, while secondary hyperaldosteronism is caused by a problem in the renin-angiotensin system.
  3. Aldosterone/PRA ratio test can be used to monitor the effectiveness of treatment for hyperaldosteronism.
  4. The test is used to evaluate hypertension in patients who are not responding to treatment, especially if it is suspected that hyperaldosteronism is the cause.
  5. The Aldosterone/PRA ratio test can also be used to assess adrenal function in patients with adrenal disorders.

The aldosterone/PRA (plasma renin activity) ratio test may be recommended for individuals who are suspected to have an aldosterone-producing tumor or other conditions affecting the RAAS.Some of the symptoms that may indicate a problem with the RAAS and warrant an aldosterone/PRA ratio test include:

  • High blood pressure that is difficult to control with medications
  • Low blood potassium levels (hypokalemia)
  • Excessive urination
  • Muscle weakness or cramping
  • Fatigue or weakness
  • Headaches
  • Increased thirst

Individuals with a family history of aldosterone-producing tumors or hypertension may also be advised to undergo the aldosterone/PRA ratio test as a screening tool.

An abnormal result in the Aldosterone/PRA Ratio test could indicate the following:

  1. Primary Aldosteronism: Primary aldosteronism can be caused by an adrenal gland tumour or hyperplasia (enlargement of the adrenal gland).
  2. Renal Artery Stenosis: This is a condition where the arteries that supply blood to the kidneys become narrowed, leading to reduced blood flow and activation of the renin-angiotensin-aldosterone system.
  3. Congestive Heart Failure: In congestive heart failure, the heart is unable to pump blood effectively, which can lead to decreased blood flow to the kidneys and activation of the renin-angiotensin-aldosterone system.
  4. Cirrhosis: In cirrhosis, there is damage to the liver, which can lead to activation of the renin-angiotensin-aldosterone system and increased levels of both aldosterone and PRA.
  5. Pregnancy: During pregnancy, there is an increase in aldosterone levels, which can lead to a decrease in PRA levels and an increase in the Aldosterone/PRA Ratio. This is a normal physiological response during pregnancy.

 

The test involves drawing a small amount of blood from a vein in your arm. A healthcare professional will clean the area with an antiseptic, wrap an elastic band around your upper arm to make the veins more visible, and insert a needle into a vein to collect the blood sample. You may feel a brief prick or stinging sensation when the needle is inserted, but the procedure is generally painless.

No special preparation is required for the test. However, it is recommended that you consult with your healthcare provider before taking the test, as they may have specific instructions or recommendations based on your individual medical history and current health status.

Several laboratory tests may be ordered along with the Aldosterone/PRA ratio test to further evaluate the patient's health status and help diagnose underlying conditions:

  1. Electrolyte Panel: An imbalance in these electrolytes may be indicative of an underlying medical condition, including hyperaldosteronism.
  2. Renin Activity (RA): Elevated renin levels may be indicative of renal artery stenosis or primary aldosteronism.
  3. Plasma Aldosterone: Elevated levels may indicate primary aldosteronism, while decreased levels may indicate secondary aldosteronism.
  4. Cortisol: Elevated cortisol levels may indicate Cushing's syndrome, while decreased levels may indicate adrenal insufficiency.
  5. ACTH (Adrenocorticotropic Hormone): Elevated ACTH levels may indicate primary adrenal insufficiency or a pituitary tumour, while decreased levels may indicate secondary adrenal insufficiency.
  6. Serum Potassium: Low levels may indicate hyperaldosteronism, while high levels may indicate renal failure or Addison's disease.
  1. Plasma Aldosterone-to-Renin Ratio (ARR) test
  2. Aldosterone Renin Ratio (ARR) test
  3. Plasma Renin Activity (PRA) Test with Aldosterone Test
  4. Aldosterone-to-Renin Ratio (ARR) test
  5. ARR test
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