Renin Activity, Plasma, Four Specimens

Clinical Use

Use

The Renin Activity, Plasma test with multiple specimens is designed to assess the renin activity levels at various time points after an intervention, such as medication or other treatments. This helps in evaluating the renin-angiotensin system's functionality, which plays a crucial role in the regulation of blood pressure and fluid balance. The test is often used in conjunction with others to diagnose and manage conditions such as hypertension, adrenal disorders, and certain forms of hyperaldosteronism.

Special Instructions

Not provided.

Limitations

The test's performance has not been approved or cleared by the Food and Drug Administration. It is crucial to note that samples must be handled properly to avoid rejection, which includes ensuring samples are frozen, separated, and collected using EDTA plasma. Improper collection and handling can lead to inaccurate results, which may mislead clinical decisions. Additionally, interpretations should consider the lack of established reference intervals for some specimens and understand that extreme values may require confirmation through alternative methods.

Test Details

Methodology

Other

Biomarkers

4 targets

Renin Activity Measurement

LOINC Codes

Order Codes

12900-7 - Renin sp2 p chal Plas-cCnc
12901-5 - Renin sp3 p chal Plas-cCnc
17515-8 - Renin BS Plas-cCnc
25513-3 - Renin sp1 p chal Plas-cCnc
46963-5 - Tube # SerPlBld

Result Codes

17515-8 - Renin BS Plas-cCnc
46963-5 - Tube # SerPlBld
25513-3 - Renin sp1 p chal Plas-cCnc
12900-7 - Renin sp2 p chal Plas-cCnc
12901-5 - Renin sp3 p chal Plas-cCnc

Result Turnaround Time

4-6 days

Specimen

Plasma

Volume

Not provided

Minimum Volume

Not provided

Container

EDTA tube

Collection Instructions

Collect the initial tube (baseline) before administering a drug or other treatment, then collect subsequent tubes as per the protocol outlined in the Endocrine Appendix.