Ordering Recommendation

Screening test for congenital disorders of glycosylation. For evaluation of alcohol abuse, order Carbohydrate Deficient Transferrin for Alcohol Use (0070412).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Plain red or serum separator tube (SST).

Specimen Preparation

Transfer 0.1 mL serum to an ARUP Standard Transport Tube. (Min: 0.05 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.

Storage/Transport Temperature

Frozen. Also acceptable: Room temperature or refrigerated.

Unacceptable Conditions

Patient age is required on the test request form. Provide reason (eg, diagnosis) for referral with each specimen.


Ambient: 1 week; Refrigerated: 28 days; Frozen: 45 days


Affinity Chromatography Mass Spectrometry




5-13 days

Reference Interval

By report

Interpretive Data

Compliance Category

Performed by non-ARUP Laboratory


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0092451 Mono-oligo/Di-oligo Ratio 35469-6
0092452 A-oligo/Di-oligo Ratio 35475-3
0092454 CDG - Interpretation 53808-2
2002922 CDG - Reason for Referral 42349-1
2002950 CDG - Reviewed By 18771-6
2007741 Tri-sialo/Di-oligo Ratio 90420-1
2007742 Apo CIII-1/Apo CIII-2 Ratio 90421-9
2007743 Apo CIII-0/Apo CIII-2 Ratio 90419-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • Apo-CIII
  • Apolipoprotein CIII
  • CDG
  • CDGS
  • CDT
  • Glycoprotein Syndrome
  • Transferrin Isoforms
Carbohydrate Deficient Transferrin for Congenital Disorders of Glycosylation (CDG)

Mayo Clinic Laboratories