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Test Code RUFI Rufinamide, Serum

Useful For

Monitoring serum rufinamide concentrations, assessing compliance, and adjusting dosage in patients receiving other drugs which interact pharmacokinetically with rufinamide (ie, drugs that induce liver CYP3A4 enzymes) and may be helpful in who are receiving hemodialysis

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Rufinamide, S

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Red top

Acceptable: SST

Specimen Volume: 1 mL

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

2. For sustained-release formulations ONLY, draw blood a minimum of 12 hours after last dose.

3. Spin down within 2 hours of draw.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Reference Values

5.0-30.0 mcg/mL

Day(s) and Time(s) Performed

Tuesday, Thursday, Saturday; 2 p.m.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

80299

LOINC Code Information

Test ID Test Order Name Order LOINC Value
RUFI Rufinamide, S 59323-6

 

Result ID Test Result Name Result LOINC Value
63030 Rufinamide, S 59323-6

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.