GENTAMICIN, TROUGH, SERUM - NorDx Test Catalog

Additional Codes

Software	Test Code
Label Text	GENTT
EPIC	LAB26

Performing Laboratory

NorDx Laboratories

Useful For

Monitoring the adequacy of drug clearance during gentamicin therapy

Method Name

Spectrophotometry (SP)

Reference Values

Therapeutic concentration: ≤ 1.0 ug/mL

Toxic concentration: >2.0 ug/mL

See Pharmacokinetic consult report.

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Available Stat

Specimen Type

Submit one of the following:

~ Plasma

~ Serum

Preferred Container

Plasma Separator Tube (PST)

Serum Separator Tube (SST)

Preferred Volume

Plasma: 1 mL (Plasma Separator Tube (PST))

Serum: 1 mL (Serum Separator Tube (SST))

Minimum Volume

Plasma: 0.5 mL (Plasma Separator Tube (PST))

Serum: 0.5 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

1. Spin specimen, separate from clot and send frozen.

2. If specimens must be stored for later testing, they may be kept capped at 2-8°C for 1 week or capped at -20°C for 4 weeks.

3. Specimens should not be repeatedly frozen and thawed.

Specimen Stability Information

Specimen Type: Plasma

Frozen: 4 Weeks

Refrigerated: 1 Week

Must be spun/separated within: 2 Hours

Note: Addon capable ONLY IF less than 1 week at 2 – 8°C or if frozen less than -20°C less than 4 weeks

Specimen Type: Serum

Frozen: 4 Weeks

Refrigerated: 1 Week

Must be spun/separated within: 2 Hours

Note: Addon capable ONLY IF less than 1 week at 2 – 8°C or if frozen less than -20°C less than 4 weeks

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
80170	Drug Screen Quantitative Gentamicin

Keywords

GARAMYCIN® (GENTAMICIN)

TDM

THERAPEUTIC DRUG MONITORING

Performing Laboratory Location