home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620244.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
2KB
|
30 lines
Document 0244
DOCN M9620244
TI Pitfalls in HIV testing. Application and limitations of current tests.
DT 9602
AU Cordes RJ; Ryan ME; Department of Pediatric Subspecialities, Geisinger
Medical; Center, Danville, PA 17822-1339, USA.
SO Postgrad Med. 1995 Nov;98(5):177-80, 185-6, 189. Unique Identifier :
AIDSLINE MED/96063582
AB Enzyme-linked immunosorbent assay (ELISA) and Western blot assay are the
most commonly used laboratory tests for HIV infection. Both detect
antibodies to HIV. ELISA results are based on detection of
antigen-antibody complexes by using antibodies labeled with an enzyme
that produces a color change in the presence of a specific substrate.
Currently licensed ELISA tests have greater than 98% sensitivity and
specificity for HIV. Western blot analysis detects antibodies to
specific HIV antigens and is best used as a confirmatory test. In spite
of the high sensitivity and specificity of both tests, false-positive
and false-negative results do occur. Physicians should be aware of
specific causes of inaccurate results. In individual cases, knowledge of
the patient's history and the criteria used by the laboratory performing
the test is important.
DE AIDS Serodiagnosis/METHODS/*STANDARDS Blotting, Western/STANDARDS
Enzyme-Linked Immunosorbent Assay/STANDARDS Human HIV/IMMUNOLOGY HIV
Antibodies/BLOOD HIV Infections/*DIAGNOSIS Sensitivity and Specificity
JOURNAL ARTICLE REVIEW REVIEW, TUTORIAL
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).