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BCH Order Code VANCT Vancomycin Level, Trough, Serum

Additional Codes

Carent Order Code


Reporting Title

Vancomycin Trough

Useful For

Monitoring levels of vancomycin to ensure appropriate therapy.  Aminoglycoside monitoring requires both peak and trough levels.

Performing Laboratory

Boulder Community Health

Specimen Requirements

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 1 mL of serum
Collection Instructions: Serum for a trough level should be drawn immediately prior to next dose. Initial trough level of aminoglycoside will be drawn before the fourth dose.

Note: 1. Random levels are drawn on dialysis patients.
2. Dosage information, and which other antimicrobials are given concurrently, and date and time of draw are required on request form for processing.

3. Protect sample from light

Specimen Transport Temperature

Room Temperature up to 2 hours

Refrigerated up to 3 days

Frozen up to 14 days


Enzyme Immunoassay.

Reference Values

Therapeutic concentration: 5-20 mcg/mL

Toxic concentration (automatic call-back): >30 mcg/mL

NOTE:  To convert mcg/mL vancomycin to umol/L vancomycin, multiply the result by 0.67

To convert mcg/mL vancomycin to mg/L vancomycin, multiple the result by 1.0

Day(s) Test Set Up


Test Classification and CPT Coding


LOINC Code Information