Carbohydrate Deficient Transferrin, pediatric




Test Mnemonic

CDTRAP

CPT Codes

  • 82373 - QTY (1)

Aliases

  • Carbohydrate Deficient Glycoprotein Syndrome
  • CDGS
  • Congenital Disorders of Glycosylation

Includes

  • Mono-oligo/Di-oligo Ratio
  • A-oligo/Di-oligo Ratio
  • Tri-sialo/Di-oligo Ratio
  • Apo CIII-1/Apo CIII-2 Ratio
  • Apo CIII-0/Apo CIII-2 Ratio
  • Interpretation

Performing Laboratory

Mayo Clinic Dpt of Lab Med & Pathology


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.1 mLSerumSST (Gold) FrozenMust submit Biochemical Genetics Patient Information form with the specimen. Patient age is required. Centrifuge and transfer serum into standard plastic aliquot tube.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.1 mLSerumNo additive (Red) FrozenMust submit Biochemical Genetics Patient Information form with the specimen. Patient age is required. Centrifuge and transfer serum into standard plastic aliquot tube.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.05 mL     

Stability

Environmental Condition Description
Frozen45 days
Refrigerated28 days
Ambient7 days

Days Performed

Mon, Thu

Turnaround Time

4 - 7 days

Methodology

Name Description
Affinity Chromatography-Mass Spectrometry(MS) 

Reference Range

A Di oligo Ratio
Sex Age From Age To Type Range Range Unit
       Normal <= 0.011 
       Indeterminate 0.012 - 0.021 
       Abnormal >= 0.022 
Apo CIII 0,2 Ratio
Sex Age From Age To Type Range Range Unit
       Normal < =0.48 
       Indeterminate 0.49 - 0.68 
       Abnormal >= 0.69 
Apo CIII 1,2 Ratio
Sex Age From Age To Type Range Range Unit
       Normal <= 2.91 
       Indeterminate 2.92 - 3.68 
       Abnormal >= 3.69 
Mono Di oligo Ratio
Sex Age From Age To Type Range Range Unit
       Normal <= 0.06 
       Indeterminate 0.07 - 0.09 
       Abnormal >= 0.10 
Tri sialo Di oligo
Sex Age From Age To Type Range Range Unit
       Norma l <= 0.05 
       Indeterminate 0.06 - 0.12 
       Abnormal >= 0.13 

Special Info

Patient's age and reason for referral are required. Must submit Biochemical Genetics Patient Information form with the specimen. Grossly hemolyzed specimens will be rejected. This test is New York State approved.

Clinical Info

This test is for congenital disorders of glycosylation. If looking for evaluation of alcohol abuse, please order Carbohydrate Deficient Transferrin (CDTRAN). Other conditions such as heredity fructose intolerance, galactosemia, and liver disease may result in increased levels of carbohydrate deficient transferrin.