3. SCREENING TESTS
Rapid kit test
ELISA (enzyme linked immunosorbant essay)
• Most reliable,
has 99.9 % sensitivity
• Third and fourth generations are being used, detect all antibodies (IgM)
CONFIRMATORY TESTS
WESTERN blot
Specificity 99.9%
4. • Line immunoassay (LIA)
• Immunofluorescence assay (IFA)
• MOLECULAR MARKERS
•
Polymerase chain reaction (PCR) RNA
Nucliec acid sequence amplification (NASBA)
•
•
P24 CORE ANTIGEN
• CD4 CELLS
•
Risk of infection increses when count less then 200*10^6/L
•
Help staging disease and monitring therapy
5. CONTROL PROGRAM | HEALTH DEPARTMENTHIV AND AIDS: DIAGNOSIS & TESTS
HEALTH.PUNJAB.GOV.PK
OXFOR HANDBOOK OF CLINICAL MEDICINE EIGHTH EDITION . MURAY LORANG. PAGE 408
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