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Test Code RUFI Rufinamide, Serum

Additional Codes

Epic Ordering Code LAB3041952
NBS code LBC11812
Service code 37144

Reporting Name

Rufinamide, S

Useful For

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

Method Name

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

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL Serum

Collection Instructions:

1. Collect blood immediately before next scheduled dose.

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

3. Within 2 hours of collection, centrifuge and aliquot serum into plastic vial.


Specimen Minimum Volume

Serum: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
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) Performed

Tuesday, Thursday, Saturday

Report Available

3 to 5 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

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. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

80210

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 1 of the following forms with the specimen:

-Therapeutics Test Request (T831)

-Neurology Specialty Testing Client Test Request (T732)

Secondary ID

63030
National University Hospital-Singapore Additional Information:

Last updated 14/07/2026