GLIADIN (DEAMIDATED) ANTIBODY, IgA

Sub Category

AUTOIMMUNE.

Synonyms/Aliases

DEAMIDATED GLIADIN PEPTIDE (DGP) ANTIBODY, IgA; GLIADIN ANTIBODIES, IgA.

Abbreviations

DGP IgA; DGP AB.

^Type

INDIVIDUAL TEST.

^{7 DAYS}

7 WORKING DAYS

^Method

IMMUNOASSAY.

^Temp

REFRIGERATED. AMBIENT OR FROZEN ALSO ACCEPTABLE.

^Setup

BATCHED.

Components Parameters

N/A

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

N/A

Sample type

SERUM.

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER.

Sample volume

2 ML.

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; HEMOLYZED, LIPEMIC, ICTERIC SAMPLES.

Other Instructions

CENTRIFUGE SST (SERUM GEL TUBES) WITHIN 1-2 HOURS OF COLLECTION. CENTRIFUGE RED TOP VACUTAINERS AND ALIQUOT SERUM WITHIN 1-2 HOURS OF COLLECTION. THE SEPARATION VIAL MUST BE LABELED WITH AT LEAST 2 PATIENT IDENTIFIERS AND THE SAMPLE TYPE.

Reference intervals

NEGATIVE.

Clinical Utility

DIAGNOSIS OF CELIAC DISEASE (COELIAC DISEASE)/ GLUTEN SENSITIVE ENTEROPATHY.

Test Limitations/ Confounders

FALSE NEGATIVE RESULTS MAY OCCUR IN IgA DEFICIENCY. FALSE POSITIVES CAN OCCUR. LESS SENSITIVE THAN TRANSGLUTAMINASE (ANTI-tTG) & ENDOMYSIAL ANTIBODIES (EMA).