Specimen Stability (for laboratory use only)
Collection Container
24 hour urine container
Service Code:
LBC00053
Collection Instructions:
Spironolactone (Aldactone) should be discontinued for 4 to 6 weeks before specimen collection. The plasma renin activity cannot be interpreted if the patient is being treated with spironolactone.
1. Collect 24 hour urine container with Boric acid from laboratory.
2. Refer to https://www.wh.com.sg/labs/Specimens/Pages/Specimens-Collection.aspx for collection of urine.
3. Send specimen to the laboratory immediately.
Refer to testing laboratory catalogue for more information:
https://www.mayocliniclabs.com/test-catalog/overview/8556#Specimen
1. Collect 24 hour urine container with Boric acid from laboratory.
2. Refer to https://www.wh.com.sg/labs/Specimens/Pages/Specimens-Collection.aspx for collection of urine.
3. Send specimen to the laboratory immediately.
Refer to testing laboratory catalogue for more information:
https://www.mayocliniclabs.com/test-catalog/overview/8556#Specimen
Unacceptable Conditions:
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Specimen Stability:
Ambient
14 days
Refrigerate
Frozen
Performance
Turn Around Time:
2 - 8 days
Days Test Performed:
Testing Laboratory:
Mayo Clinic Laboratories in Rochester via Tan Tock Seng Hospital (TTSH)
Clinical & Interpretative
Description:
Methodology:
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Reference Interval:
See laboratory report
Critical Values:
N.A.
