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HelpTest Code GENRBP (random), GENPBP (peak), GENTBP (trough) Gentamicin, Serum
Additional Codes
Random: LAB27
Peak: LAB28
Trough: LAB26
Methodology
Used to monitor antibiotic therapy.
Performing Laboratory
St. Mary's Regional Medical Center-Chemistry
CPT: random 80170
CPT: trough 80170
CPT: peak 8017091
Specimen Requirements
Container/Tube: Plain, red-top tube(s), gold serum gel tube, or light green top tube
Specimen: 1 mL of serum, or 1 mL plasma from light green top tube
Transport Temperature: Ambient
Collection Instructions: Timing of specimen draw and dose administration is critical. Adhere to schedule. Notify laboratory and pharmacy of any changes.
Reference Values
Peak: 4-10 mcg/mL
Trough: <2 mcg/mL
Toxic concentration: >10 mcg/mL
Day(s) Test Set Up
Monday through Sunday