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Test Code LAB36 Tobramycin - Peak

Department

CHEMISTRY

Collection Requirements

PEAK AND TROUGH DRUG LEVELS SHOULD BE DRAWN DURING THE SAME DOSE CYCLE WITH THE PEAK DRAWN (45-60 min post IM; immediately after 60 min. IV dose or 30 min after 30 min IV dose), AND THE TROUGH DRAWN (immediately prior to the next dose).

Primary Collection Container

Green PST (Lithium Heparin)

Alternate Collection Container

Green Microtainer PST

Transport

Refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge and refrigerate.

Separate from gel if testing is to be delayed more than 8 hours.

Stability

Refrigerated: 48 Hours

Minimum Testing Volume

0.5 mL

Reference Range

4-8 µg/mL

Methodology

Roche c503 Enzyme Immunoassay

Performed

Sunday – Saturday

Reported

As completed

CPT Codes

80200

Unacceptable Conditions

Specimens on gel longer than 8 hours.

Gross hemolysis.