Total reviews 423
Total reviews 423
Tests Included: 3
Est. 8-10 (business days) Turnaround
Specimen type: Blood
Lab Location
Aldosterone is the steroid hormone, produced in the cortex of the adrenal glands, located above the kidneys. The hormone plays a vital role in regulating blood pressure, plasma sodium (Na+), and potassium (K+) levels. It is also important for sodium conservation in the kidney, salivary glands, sweat glands, and colon. Aldosterone is closely linked to the other two hormones called renin and angiotensin. All these three create the renin-angiotensin-aldosterone system most commonly known as RAAS. Renin is an enzyme that is secreted by the kidneys, which stimulates the production of aldosterone by the adrenal glands....
Tests Included: 3
Est. 8-10 (business days) Turnaround
Specimen type: Blood
Lab Location
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Aldosterone is the steroid hormone, produced in the cortex of the adrenal glands, located above the kidneys. The hormone plays a vital role in regulating blood pressure, plasma sodium (Na+), and potassium (K+) levels. It is also important for sodium conservation in the kidney, salivary glands, sweat glands, and colon. Aldosterone is closely linked to the other two hormones called renin and angiotensin. All these three create the renin-angiotensin-aldosterone system most commonly known as RAAS. Renin is an enzyme that is secreted by the kidneys, which stimulates the production of aldosterone by the adrenal glands. When there is a drop in blood pressure, or when the sodium level in the blood is lower than the normal, production of renin is triggered.
The aldosterone-to-renin ratio (ARR) is the ratio among plasma aldosterone (expressed in ng/dL) and plasma renin activity (PRA, expressed in ng/mL/h). The test can be utilized to abnormal levels of aldosterone and renin in the body It is one of the most sensitive tests to check for primary hyperaldosteronism (also known as Conn syndrome: an endocrine disorder where the adrenal glands (one or both) secretes an excess of a hormone called aldosterone). This causes the body to lose too much potassium and retain too much sodium, thus leads to an increase in water retention, blood volume, and blood pressure.
Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
Note: Turn around times on results are an estimate and are not guaranteed. The lab may need additional time due to holidays, confirmation/repeat testing, etc. You can contact us to discuss when your results should be ready and we will contact the lab on your behalf immediately.
| Adult | |
| Upright 8:00-10:00 A.M. | ≤28 ng/dL |
| Upright 4:00-6:00 P.M. | ≤21 ng/dL |
| Supine 8:00-10:00 A.M. | 3-16 ng/dL |
| Tanner Stages | |
| II-III Males | 1-13 ng/dL |
| II-III Females | 2-20 ng/dL |
| IV-V Males | 3-14 ng/dL |
| IV-V Females | 4-32 ng/dL |
| Plasma Renin Activity | 0.25-5.82 ng/mL/h |
| Aldosterone/PRA Ratio | 0.9-28.9 Ratio |
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