Category
SEROLOGY/ IMMUNOLOGY
Sub Category
INFECTIOUS.
Synonyms/Aliases
N/A
Abbreviations
N/A
Type
INDIVIDUAL TEST.
5 DAYS
5 WORKING DAYS
Method
IMMUNOASSAY.
Temp
AMBIENT (7 DAYS), REFRIGERATED (14 DAYS), FROZEN (30 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
NEGATIVE.
Clinical Utility
EVALUATION OF LYMPHEDEMA. DIAGNOSE EXPOSURE TO LYMPHATIC FILARIASIS/ ELEPHANTIASIS/ WUCHERERIA BANCROFTI INFECTION/ BRUGIA MALAYI INFECTION. ALSO CONSIDER EXAMINING PERIPHERAL BLOOD (COLLECTED AT MIDNIGHT FOR SUSPECTED W. BACROFTI & B. MALAYI) FOR MICROFILARIAE AS WELL AS FILARIA ANTIGEN TESTING.
Test Limitations/ Confounders
DOES NOT DISTINGUISH BETWEEN PAST & CURRENT ACTIVE INFECTION. FALSE POSITIVES CAN OCCUR FROM CROSS-REACTING ANTIBODIES TO OTHER HELMINTHS/ NEMATODES E.G. STRONGYLOIDES STERCORALIS. FALSE NEGATIVES CAN OCCUR.