Renin Activity, Plasma, Eight Specimens
Use
The Renin Activity, Plasma, Eight Specimens test is used to measure the renin activity in plasma across multiple time points. It is often used in conjunction with treatments involving drugs or other stimuli to assess changes in renin activity as part of diagnostic evaluations for conditions related to blood pressure regulation, kidney function, and fluid balance.
Special Instructions
This test panel requires the collection of multiple tubes at different time intervals after an initial baseline draw and subsequent administration of treatment such as a drug or glucola. It is important to ensure no collection is done before clinician approval if the series is ordered without a confirmed stimulus plan.
Limitations
A key limitation for this test is that no frozen samples or samples not separated properly can be used. Additionally, non-EDTA plasma specimens or samples showing gross icterus are not acceptable, which might affect the accuracy or viability of the test results, necessitating re-collection under appropriate conditions.
Methodology
Other
Biomarkers
LOINC Codes
- 17515-8
- 25513-3
- 12900-7
- 12901-5
- 12902-3
- 12903-1
- 12905-6
- 12906-4
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
Not provided
Minimum Volume
Not provided
Container
EDTA tube
Collection Instructions
Follow directions for Sequential Sampling as per Directory of Services. Ensure samples are separated and frozen quickly to preserve integrity.
Patient Preparation
Ensure patient is appropriately prepared for plasma draw, following specific guidelines if a treatment or drug is administered.
Storage Instructions
Keep samples frozen.
Causes for Rejection
Non-frozen sample received; non-separated sample received; non-EDTA plasma specimen; gross icterus