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Vanderbilt Pathology Laboratory Services

Test Directory



TOBRAMYCIN LEVEL (TML)

Department: Toxicology
Test Synonym(s): TML, Nebcin, Tobrex
CPT Codes: 80200
Methodology: FPIA
Reference Range: Infant Peak: 2-4 mg/Kg = 5-10 mcg/mL - 5-7 mg/Kg = >15mcg/mL Peak Adult: 5-10 mcg/mL , Trough Infant/Ped's: <2 , Trough Adult: <0.5 , Toxic Trough Ped's: Q24>1 - Q8/Q12 >2 , Toxic Trough Infant: Q24 >2 - Q8/Q12 >2 , Toxic Trough Adult: Q24 > 0.5 - Q8/Q12 >2
Tube Type: Dark green top (Sodium Heparin) tube - 6.0 mL
Specimen: Plasma
Pediatric Requirements: 2 dark green microtainers
Volume: 1 mL plasma
Minimum Volume: 0.4 mL plasma
Temperature: Refrigerated if not delivered to the lab immediately
Stability: Refrigerated: 2 days, frozen at -20 C for longer storage
Reasons for Rejection: Hemolysis, low volume
Days Performed: Daily
Times Performed: Continuous
TAT: Stat: 1 hour, routine: 2 hours
Special Instructions: Peak serum levels generally - draw 30 minutes after 30 min IV. Submit date/time IV start, date/time IV stop, peak collection time, dosage amount/interval. Trough serum levels generally - draw 30 minutes before next dose, following third dose. Provide date/time last dose charted, collection date/time, dosage amount/interval. Indicate if peak or trough specimen.

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