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HelpTest Code LAB37 Tobramycin, Random, Plasma or Serum
Additional Codes
46578
Reporting Title
Tobramycin, Random
Methodology
Roche Enzymatic
Tobramycin, an antibiotic, has a narrow therapeutic index. It is particularly hazardous in patients with impaired renal function. The dose-serum level profile curve is unpredictable for peak serum levels and elimination half-life.
Performing Laboratory
OhioHealth Laboratory Services-RMH Core Laboratory
Specimen Requirements
Collection Instructions:
1. Serum and Plasma gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.
Submit only 1 of the following specimens:
Preferred:
Serum
Draw blood in a gold-top serum gel tube(s). Spin down and
send 1 mL of serum refrigerated.
Note:
1. Date and time of draw are required on request form and specimen for processing.
2.A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.
3. Indicate serum and random on request form.
4. Label specimen appropriately (serum and as random).
Alternate:
Plasma
Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.
Note: 1. Date and time of draw are required on request form and specimen for processing.
2. Indicate plasma and random on request form.
3. Label specimen appropriately (plasma and as random).
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum or plasma | Refrigerated | 3 days capped |
| Ambient | 3 days capped | |
| Frozen | 1 month capped |
Specimen Transport Temperature
Refrigerate/Frozen OK/Ambient NO
Reference Values
No therapeutic range established
Note: 1. Kanamycin, dibekacin, and amikacin cause falsely elevated results.
2. Trough levels more closely correspond to tissue levels and are less prone to sampling errors.
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
80200