Plasma

Plasma Separator Tube 4.5 mL

Call laboratory for additional acceptable specimen collection containers.

3 mL whole blood in light green top or ONE Microtainer^®.

24 hrs/day, 7 days a week, including holidays.

1 hour (upon receipt in laboratory)

Peak 6-10 μg/mL; (45-75 min. after I.M. dose, 15-30 min. 
after I.V. dose)
Trough <2 μg/mL; (Not more than 30 min. before next dose)

Critical value: Peak   >10 μg/mL

Phlebotomy team does not draw timed tobramycin specimens. Clinical staff must draw accurately timed peak and trough specimens.

Icterus: No significant interference from bilirubin up to an I 
index of 30.

Hemolysis: No significant interference from hemoglobin up to an H 
index 
of 800.

Lipemia (Intralipid): No significant interference up to an L index of 
750. There is poor correlation between turbidity and triglycerides 
concentration.

No significant interference from total protein up to 12 g/dL.

Homogenous Enzyme Immunoassay

Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells within 1 hour of collection. Send specimen in original tube. Do Not transfer to another tube.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.

Refrigerate.

Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.

See Additional Information:
Chemistry Critical Lab Values