HEPATITIS B ENVELOPE ANTIGEN

Sub Category

INFECTIOUS.

Synonyms/Aliases

HBV ENVELOPE ANTIGEN.

Abbreviations

HBeAg.

^Type

INDIVIDUAL TEST.

^{5 DAYS}

5 WORKING DAYS.

^Method

IMMUNOASSAY.

^Temp

AMBIENT (8 HOURS), REFRIGERATED (7 DAYS), FROZEN (14 DAYS).

^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

NON REACTIVE.

Clinical Utility

AN INDICATOR OF ACTIVE HBV INFECTION/ HIGHER HBV INFECTIVITY. IF PERSISTENTLY POSITIVE FOR MORE THAN 6 MONTHS, THIS IS CONSISTENT WITH CHRONIC HBV INFECTION.

Test Limitations/ Confounders

N/A