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Lecture 3: Testing for Infection - Coggle Diagram
Lecture 3: Testing for Infection
Testing for part of the microorganism
Genes (DNA)
Amplification (PCR)
Antigens
Rapid Antigen Test
Testing for the body's response to the microorganism
Antibody
IgM
Recent Ingection
IgG
Past infection
ELISA
Testing for the microorganism itself
Microscopy
Morphology
Gram staining
Can also identify WBCs
Ziehl Nielsen stain -> Mycobacterium
Giemsa stain -> parasites
Culture
Media
Solid -> agar plates
Liquid -> broth
Antimicrobial susceptibility testing
Collecting a specimen
Collect a proper specimen
In a proper way (watch for contamination)
Send it to the lab in a timely manner
Problems with specimens
Wrong specimen
Wrong container
Delayed transport to the lab
Poor labelling
Unnecessary specimen