Medical Microbiology introduction Flashcards
1
Q
what are 5 possible infecting agents?
A
bacteria viruses fungi prions parasites
2
Q
what specimen would be collected in the case of a chest infection?
A
sputum sample
3
Q
what are the pros and cons of gram staining/microscopy?
A
pros : quick
cons: not sensitive
usually cannot identify particular species
4
Q
what are the pros and cons of bacterial culture?
A
pros: sensitive
cons: slow
5
Q
what two types of media can be used in bacterial culture?
A
selective and non selective
6
Q
what are some sterile sites from which samples can be obtained?
A
blood
CSF
lung
bladder
7
Q
what are some non sterile sites from which samples can be obtained?
A
skin
nasopharynx
urethra
gut
8
Q
what are some common healthcare acquired infections?
A
methicillin resistant staph aureus (MRSA)
clostridium difficule
organisms with extended spectrum beta lactamases
