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Infliximab Quantitation w/Reflex to Antibodies, to Infliximab, Serum

Test Summary

Trough level quantitation for evaluation of patients with loss of response to infliximab and infliximab-dyyb

Aliases

  • Remicade

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum from a red top tube

Minimum Volume

0.5 mL

Instructions

Centrifuge red top within 2 hours of collection. Transfer serum to a plastic vial.

Patient Preparation

1. Draw blood immediately before next scheduled dose (trough specimen).
2. For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins. 

Storage

Plastic screw cap vial

Transport Temperature

Refrigerated

Specimen Stability

  • Room Temperature = N/A
  • Refrigerated = 28 days
  • Frozen = 28 days

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Serum from a serum separator tube, gross hemolysis, gross icterus

Order Code

INFXR

EPIC (Premier) Code

LAB6767

Includes

N/A

CPT Code

  • 80230
  • 82397 if appropriate

Billing Code

  • 650053

CPT Statement

Methodology

Selective Reaction Monitoring Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS),
Electrochemiluminescent Bridging Immunoassay with Acid Dissociation

FDA Status

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.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Mayo Clinic Laboratories -- Rochester Superior Drive
3050 Superior Drive NW
Rochester MN, 55901

Department

Reference Testing

Reference Range

N/A

Setup Schedule / Expected Turnaround Time

Monday - Friday; Report available: 3 - 6 days

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum from a red top tube

Minimum Volume

0.5 mL

Instructions

Centrifuge red top within 2 hours of collection. Transfer serum to a plastic vial.

Patient Preparation

1. Draw blood immediately before next scheduled dose (trough specimen).
2. For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins. 

Storage

Plastic screw cap vial

Transport Temperature

Refrigerated

Specimen Stability

  • Room Temperature = N/A
  • Refrigerated = 28 days
  • Frozen = 28 days

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Serum from a serum separator tube, gross hemolysis, gross icterus

Billing

CPT Code

  • 80230
  • 82397 if appropriate

Billing Code

  • 650053

CPT Statement

Result Information

Methodology

Selective Reaction Monitoring Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS),
Electrochemiluminescent Bridging Immunoassay with Acid Dissociation

Testing Laboratory

N/A

Reference Range

N/A

Setup Schedule / Expected Turnaround Time

Monday - Friday; Report available: 3 - 6 days