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Test ID VANTA Vancomycin, Trough, Serum

Useful For

Preferred test for monitoring vancomycin therapy


Monitoring trough concentrations drawn at steady-state in selected patients receiving vancomycin therapy

Method Name


Reporting Name

Vancomycin, Trough, S

Specimen Type

Serum Red

Ordering Guidance

In addition to this trough assay, both peak level and random 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 random testing should be ordered as VANRA / Vancomycin, Random, Serum.

Specimen Required

Container/Tube: Red top

Specimen Volume: 0.5 mL

Collection Instructions:

1. Draw specimen immediately prior to the next dose (within 30 minutes).

2. 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

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
VANTA Vancomycin, Trough, S 4092-3


Result ID Test Result Name Result LOINC Value
VANTA Vancomycin, Trough, S 4092-3

NY State Approved



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