L2: page 11 Flashcards
COMPLEMENT FIXATION TEST: Detection of IgE antibodies
Aspergillosis
COMPLEMENT FIXATION TEST:
Ab detected against M & H Ags
high sensitivity, low specificity
Histoplasmosis
ENZYME LINKED IMMUNOSORBENT ASSAY: Qualitative or Screening assay
Cryptococcosis/ Blastomycosis/
Histoplasmosis/Coccidioidomycosis
COMPLEMENT FIXATION TEST: Detects IgG Ab to Coccidioides culture filtrate
Coccidioidomycosis
ENZYME LINKED IMMUNOSORBENT ASSAY: Aspergillosis - Screening test; detects galactomannan
Invasive
ENZYME LINKED IMMUNOSORBENT ASSAY: Aspergillosis - detection of IgE Ab
Allergic
Presumptive diagnosis of Invasive candidiasis by Mannan Ag & Anti-Mannan Ab Assay
Candidiasis
Detection of metabolites
D-Arabinitol
Secreted Aspartyl Proteinase
LATERAL FLOW ASSAY:
Aspergillosis - detects GM
invasive
rapidly eliminated by immune complexes & endocytosis by Kuppfer cells
Mannan
LATERAL FLOW ASSAY:
Screening test & determination of endpoint titres
Caused by: C. neoformans & C. gattii
Cryptococcosis
LATERAL FLOW ASSAY:
Aspergillosis - detects IgE Ab
allergic
➔ Adjunct in diagnosis of invasive fungal infections
➔ Pan fungal marker
1,3 β D-Glucan Assay
component in majority of fungal cell walls
Exo antigen
makes use of several different target genes to identify an organism
multiplex polymerase chain reaction