New Search

Laboratory Test Directory

Theophylline (Updated)

Components

Name Method Department Units
Theophylline Enzymatic, reflectometry
Core Lab, Chemistry, Routine ug/mL

Specimen Requirements

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume
Preferred

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

Micro sample tube 1 mL
Alternate

Red tube, (no anticoagulant), No Gel

Micro sample tube 1 mL
Alternate

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Stability

Room temperature - 7 day(s)
Refrigerated - 7 day(s)
Frozen - 60 day(s)

Specimen Preparation

  • Mix heparin tube by gentle inversion immediately after collection
  • Transport to laboratory as soon as possible
  • Centrifuge within 4 hours, separate supernatant and refrigerate

Reasons for Rejection

  • Collected in tube with gel separator
  • EDTA tube with powder
  • Frozen whole blood
  • Gross hemolysis
  • Gross icterus
  • Gross lipemia
  • Wrong collection tube

Comments

Test is available on a STAT basis.

CPT Code

  • 80198