L6: Infectious Disease Flashcards
organism which is gram variable
Gardnerella vaginosis
KOH prep shows
fungi
elastin
Tzank prep stain
Giemsa stain
-or-
Wright stain
To test for Herpes Virus
Tzank prep: multinucleated cells
Immunofluorescence more commonly used
India ink looks for
cryptococcus
Gram (-) spirochetes can be seen with
direct visualization
too thin to be cultered or gram stained
Gram (-) spirochetes
Syphilis
T pallium
How to test for syphilis (2)
- Venereal disease Research Laboratory (VDRL):
a. CSF test
b. Fluorescent treponemal antibody absorption test (FTA-ABS) - Rapid Plasma Reagin: Serum test for syphilis
Latex agglutination assay tests for
Pathogen specific antibodies/antigens
Meningococcal capsular antigen in CSF
Enzyme-linked immunoassay (ELISA) test for
antibodies
How long does it take for an immune response to develop and antibodies to appear
2 weeks
Indirect immunofluorescence assay (IFA) tests for
antibodies, ANA antibody
Nucleic Acid Amplification (NAAT)/Polymerase Chain Reaction (PCR) test for
Bacterial/viral DNA or RNA, faster than ELISA
Acid fast bacilli test for
TB (less sensitive)
Acid fast bacilli sample
sputum smear
Elisa sample
Serum