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Theophylline

Specimen:

Collect

  • One Red Top

Also Acceptable:
  • One Gray Top
  • One Green Top (Li Heparin)
  • One Green Top (Na Heparin)
  • One Lavender (EDTA)
  • One Pink Top (EDTA)
  • One SST

Submit

  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable:
  • 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling

  • Allow specimen to clot completely at room temperature
  • Avoid Repeated Freeze/Thaw Cycles
  • Separate from cells ASAP
  • State Patient's Last Dose
  • State patient's last dose in hours.
    SST ONLY STABLE UP TO 24 HOURS.

Stability

Ambient: 8 Hour(s); Refrigerated: 1 Month(s); Frozen: 3 Month(s); Incubated: Unacceptable

Methodology

  • Homogeneous enzyme immunoassay

Performed

Mon-Fri

Reported

1-3 Day(s)

CPT Codes

  • 80198

Interpretive Data

Please see report for interpretive data.
Theophylline is potentially toxic at levels greater than 20.0 ug/mL.

Components

  • 2717 - THEOPHYLLINE
  • 2923 - LAST DOSE
Last Updated: October 10, 2024 @ 9:13 am

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Common Lab Definitions

  • Serum 
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