Home
HelpTest Code LAB28 Gentamicin - Post/Peak
Performing Laboratory
Asante Rogue Regional Medical Center / Asante Three Rivers Medical Center / Ashland Community Hospital
Specimen Minimum Volume
0.5 ml
Billing Code
2050599
Methodology
Turbidimetric Inhibition
Specimen Requirements
RRMC:
Lithium Heparin Green top tube
TRMC:
Plain Red top tube No SST or PST
Three previous doses are recommended before blood levels are obtained
For PEAK level, draw 30 minutes after complete infusion if dose is given I.V. (60 minutes infusion time)
Draw 30 minutes after injection if dose is given I.M.
Pre and post labeling of samples is critical. Please provide last dose information.
Performing Department
Chemistry
Day(s) Test Set Up
Monday through Sunday
Routine – same day
ASAP – 2 hours after receipt of specimen in lab
STAT – 1 hour after receipt of specimen in lab
Test Classification and CPT Coding
80170 - Gentamicin
Additional Information
Gentamicin is an aminoglycoside antibiotic which exhibits high action against both gram positive and gram negative bacteria. It exhibits a narrow therapeutic range which makes it hazardous, especially in patients with impaired renal function.
Specimen Transport Temperature and Stability
Centrifuge and refrigerate within 2 hours of collection
Primary tube: Spun SST stable 48 hours at 2° to 8° C
Serum stable 48 hours if aliquoted and refrigerated at 2° to 8° C
Reasons for Rejection
Icterus
Lipemia
Hemolysis
Quantity not sufficient (QNS)
Lack of Two Patient Identifiers:
1-Patient's First & Last name
2-Patient's Date of Birth