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Test Code LAB4223 VANCOMYCIN, TROUGH

Important Note

Draw trough within 15 minutes prior to infusion.

Specimen Type

Preferred Sample: Lithium Heparin Plasma (Mint Green Top, Dark Green Top)

Alternative Sample: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)

* See Test Limitations on this page for information about tubes containing gel.

Collection Instructions

Draw trough within 15 minutes prior to infusion.

Specimen Volume

1 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Refrigerated: 7 days
Frozen: 14 days

Method

Colorimetric

Reference Ranges

Vancomycin, ug/mL

       Trough: 5.0-10.0 mg/dL

       Toxic:  >21.0 mg/dL

Reporting Limit

1.4-400.0 ug/mL

Test Components

Vancomycin, Trough, ug/mL

CPT Codes

80202

Limitations

Studies have shown that therapeutic drug levels may be altered in serum/plasma that remains in contact wiht separator gel. Therapeutic drug levels collected in an SST or PST should be run within 24 hours of collection.