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Gentamicin, Trough

eDH Procedure Code(s)

LAB26 Gentamicin Level, Trough

Collection Information

Trough level should be drawn 0-90 minutes (30 minutes optimal) before the dose.. Samples for antibiotic therapeutic drug monitoring are ideally drawn via peripheral venipuncture. When peripheral venipuncture is not possible refer to DH procedure ID 234 for guidance on appropriate collection site and steps to adequately flush the catheter/line. Subcutaneous ports (e.g. Mediports) should be avoided for sample collection due to a high risk of sample contamination.

Specimen Information

Specimen Type Specimen Source Acceptable Containers Minimum Test Volume (mL)
Blood Blood, Venous Gold-R 0.1
Blood Blood, Venous GoldM-R 0.1

Shipping and Handling

Processing Instructions: N/A

Transport Temperature: Refrigerated
Transport Instructions: N/A

Specimen Stability Unprocessed
Unprocessed: 4 Hours

Specimen Stability Post Processing
Ambient: 4 Hours
Refrigerate: 7 Days
Frozen: 1 Month

Test Components

Component LOINC Code
GENTAMICIN, TROUGH 3665-7

Turnaround Time (TAT)

STAT 1 Hour
Routine 4 Hours

CPT Code(s)

80170

Performing Lab Section

Chemistry

Performing Lab(s)

Cheshire Medical Center Laboratory (CHE)
Dartmouth Hitchcock Medical Center Laboratory (MHMH)