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Test ID VANRA Vancomycin, Random, Serum

Useful For

Monitoring adequacy of drug concentration during vancomycin therapy whenever a specimen is submitted or collected without collection timing information

Method Name


Reporting Name

Vancomycin, Random, S

Specimen Type

Serum Red

Ordering Guidance

In addition to this random assay, both peak level and trough level testing are available.

1. Serum for a peak level should be drawn 1 hour after completion of dose; order VANPA / Vancomycin, Peak, Serum.

2. Serum for a trough level should be drawn no more than 30 minutes prior to next dose; order VANTA / Vancomycin, Trough, Serum.

Specimen Required

Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum within 2 hours of collection.

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 14 days
  Frozen  365 days
  Ambient  48 hours

Reference Values


Therapeutic: 10.0-20.0 mcg/mL



Therapeutic: 20.0-45.0 mcg/mL

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
VANRA Vancomycin, Random, S 20578-1


Result ID Test Result Name Result LOINC Value
VANRA Vancomycin, Random, S 20578-1

NY State Approved



If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.