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Gentamicin Trough, Plasma or Serum
Test CodeGETR
Alias/See Also
Gentamicin Trough
CPT Codes
80170
Preferred Specimen
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube or a
lavender-top (EDTA) tube. Spin specimen down and send 0.5 mL
of plasma.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube. Spin specimen down and send
0.5 mL of serum.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Plasma
Draw blood in a green-top (lithium heparin) tube or a
lavender-top (EDTA) tube. Spin specimen down and send 0.5 mL
of plasma.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube. Spin specimen down and send
0.5 mL of serum.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Transport Temperature
Refrigerate up to 7 days/Frozen ok
Methodology
Enzyme Immunoassay (EIA)
Note: Refer to Therapeutic Drug Monitoring (TDM) Recommended Collection Times for Peak/Trough Levels located in General Information.
Setup Schedule
Monday through Sunday
Reference Range
<2.0 µg/mL
Critical value: ≥2.0 µg/mL
Performed By
North Mississippi Medical Center Pathology Department
Performing Laboratory
NMMC Pathology Department
