intro to microbiology principle of disease onwards

Question 1

are prions a possible infecting agent?

Answer 1

yes prions are infecting agents along with fungi, bacteria ,viruses and parasites

Question 2

name the specimen collection for a urinary tract infection

Answer 2

MSU - midstream urine

Question 3

what is the specimen collection for a chest infection?

Answer 3

sputum

Question 4

what is the specimen collection for tonsilitis

Answer 4

throat swab

Question 5

what is the specimen collection for a wound?

Answer 5

swab or pus

Question 6

What is the specimen collection for diarrhoea?

Answer 6

faeces

Question 7

What is the specimen collection for bacteraemia?

Answer 7

blood cultures

Question 8

what does a stained & unstained microscopy allow you to see?

Answer 8

stained- yeast,bacteria, fungi
unstained- pus, parasites faeces etc

Question 9

what does Zn stain or an auramine stain identify ?

Answer 9

mycobacteria

Question 10

what are the 5 infecting agents ?

Answer 10

viruses
parasites
bacteria
fungi
prions

Question 11

what infecting agent is not seen under light microscopy ?

Answer 11

viruses

Question 12

what is the difference between microscopy & culture ?

Answer 12

culture - slower, identifies specific species (sensitive)

microscopy - faster but doesnt identify specific species (insensitive)

Question 13

how are species identified ?

Answer 13

dna tpying techniques - identifys strains of species

dna tests

observing characteristics

Question 14

what are the sterile sites within the body? state 4

Answer 14

bladder , lung, CSF and blood

Question 15

state non-sterile sites of the body

Answer 15

gut, throat (pharynx) and skin

Question 16

Give some examples of healthcare acquired infection

Answer 16

clostridium difficile
MRSA
noroviruses
ESBL

Question 16

what does serology determine?

Answer 16

determines immunity

Question 17

what makes a site sterile?

Answer 17

will contain no micro-organisms