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Theophylline

Methodology:

Electrochemiluminescence

Performed:

Daily

Analytical Time:

2 - 24 hours

Testing Laboratory:

Pathology Laboratory

Laboratory Section:

Core Laboratory

Theophylline

Preferred Collection Container:

Light Green (Lithium Heparin Plasma Separator Tube)
SST (Serum Separator)

Also Acceptable Collection Container:

Green No Gel (Lithium Heparin)
Red (No Additive)
Plasma from Lavender tubes is acceptable but will not route in the Laboratory Information System (Sunquest).

Collection Information:

Collect blood in a Light Green (Lithium Heparin Plasma Separator Tube) or SST (Serum Separator). Green No Gel (Lithium Heparin), Red (No Additive) and Lavender (EDTA) also acceptable.

Transport Information:

Centrifuge and aliquot 1.0 mL of serum or plasma into a plastic transport vial. Send refrigerated.

Minimum Sample Volume: Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

0.5 mL of serum or plasma (approximately 1.0 mL of whole blood based upon a normal patient hematocrit)

Remarks:

Collect (trough) levels just before the next dose. Collect (peak) levels 90 minutes after oral dosing of a slow release form.

Stability

Refrigerated Stability:

7 days - Preferred

Frozen Stability:

2 months

Theophylline

Sunquest Order Code:

THEO

Epic Number: The test code used to identify this assay in Epic

LAB35

CPT Code:

80198

Theophylline

Modified:

7/19/2016 9:33:23 AM