| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Tobramycin, Trough, Plasma or Serum
Test CodeTOBRAT - NCMC
CPT Codes
80200
Preferred Specimen
In-patient: 1 mL plasma from Green top (Lithium Heparin)
Out-patient: 1 mL serum from SST
Out-patient: 1 mL serum from SST
Minimum Volume
0.5 mL
Other Acceptable Specimens
1.0 mL serum from SST or Red Top
Instructions
- Draw the trough 30 minutes before the drug is given.
- Specimen for a drug serum concentration should not be drawn from the same site as drug administration.
- Before administering the drug, verify that the trough has been drawn.
Specimen Stability
| Specimen Type | Temperature | Time |
| Plasma Li Hep | Refrigerated | 72 hours |
| Serum SST | Refrigerated | 72 hours |
| Red Top – Separated* | Refrigerated | 72 hours |
*Centrifuge and aliquot into a plastic vial.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Bichromatic Turbidimetric Rate Particle Enhanced Turbidimetric Inhibition Immunoassay (PETENIA)
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
1.0 - 2 .0 µg/mL
Critical value (automatic call-back): >2.0 µg/mL
Critical value (automatic call-back): >2.0 µg/mL
Performing Laboratory
North Colorado Medical Center Laboratory
