HAI

Question 0

What is the D value?

Answer 0

• time taken to reduce the microbial population by 10-fold i.e. 90%

Question 1

What is the Spaulding classification?

Answer 1

• the classification that determines what sterility assurances are required e.g. Critical suggests sterility assurance of 10^-6, 1 in a million chance of microbial contamination
• the other classes are semi critical (e.g. endoscopes) and non critical (e.g. BP cuff)

Question 2

T/F high bio burden results in higher errors

Answer 2

True, errors occur when there is an unexpected bio burden

- by reducing the bio burden the process can be shorter and more efficient

Question 3

What factors affect ability to kill organisms quickly?

Answer 3

• the D value (time taken for 10-fold reduction)
• the sterility assurance (prob that item is sterile)
• bioburden