Microbiology 9: Hospital Acquired Infections

Question 1

What is the most common type of healthcare associated infection ?

Answer 1

Hospital acquired pneumonia.

Question 2

C.difficile is a:

A) Gram +ve anaerobe
B) Gram -ve aerobe
C) Gram variably coccobacilus 
D) Gram +ve spore forming anaerobe 
E) Other

Answer 2

D) Gram +ve spore forming anaerobe

Question 3

Which organism is most associated with Surgical site infections ?

Answer 3

MRSA

Question 4

Which organism is most associated with urinary catheter associated UTIs ?

Answer 4

E.Coli

Question 5

Which organism is most associated with ventilator associated pneumonia ?

Answer 5

Pseudomonas aeruginosa

Question 6

what are the most common causes of HAI

Answer 6

1 = hospital-acquired penumonia 
2 = surgical site infection 
3 = urinary tract infections 
4 = blood stream infections
5 = gastrointestinal infections

Question 7

name a gram positive cocci that forms clusters

Answer 7

S. Aureus

Question 8

what are carbepenemase-producing enterobacteriacaea

Answer 8

carbapenems = last resort antibiotics

using lots of carbapenems increases risk