1.1 The Basics Flashcards
1
Q
What is a microbiota?
A
The sum of all micro-organisms in a specific environment.
2
Q
Give an example of when usually safe bacteria becomes harmful?
A
Transfer of bacteria from the skin to the insides, eg. during surgery
3
Q
List 4 ways bacteria can be spread
A
Physical contact Airborne Use of vectors (eg. mosquitos) Contamination of the environment Vertical transmission
4
Q
List 4 investigations that can be done to determine whether or not a patient has an infection
A
Full blood count C reactive protein (CPR) Blood chemistry test (eg. Liver function test) Imaging- xray, MRI, ultrasound Histiopathology
5
Q
Name 4 tests that can be done to specifically identify bacteria as the cause of an infection
A
Take a specimen Microscopy- Gram Stain Antigen detection Antibiotic susceptibility Culture Nucleic acid detection
6
Q
Name 3 tests that can be done to specifically identify viruses as the cause of an infection
A
Antigen detection
Antibody detection
Detect viral nucleic acids (RNA/DNA)
7
Q
What is an infection?
A
An invasion of a host’s tissues by microorganisms which cause disease by microbial multiplication, toxin release and a host responce
