Theophylline Lvl (THE)

Department: Chemistry
Test Synonym(s): LAB35, THE, Elixophyllin
CPT Codes: 80198
Methodology: FPIA
Reference Range: Abbott neonates 0-<1mo: 5-10 mcg/mL , 1mo-150yrs: 10-20
Tube Type: Dark green top (Sodium Heparin) tube - 6.0 mL
Specimen: Plasma
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 2 dark green microtainers
Volume: 1 mL plasma
Minimum Volume: 0.6 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: Draw immediately before next dose. Refrigerate if not delivered immediately.

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