CHAPTER 9: Principles of Infection Control

Question 1

Process of identifying an outbreak

Answer 1

Surveillance

Question 2

Surveillance system locally is performed by

Answer 2

Hospital epidemiologist

Question 3

Surveillance system nationally is performed by

Answer 3

Epidemiologist in public health service

Question 4

Laboratory testing that involves the use of enzymes that can digest genomic, plasmid DNA or ribosomal RNA giving a pattern that can be compared between isolates

Answer 4

Molecular Typing

Question 5

Patients who are especially susceptible to infection require ___________ isolation

Answer 5

Protective

Question 6

Precautions for Wound and enteric isolation

Answer 6

• side-room isolation with dedicated hand-washing and toilet facilities;
• use of disposable plastic aprons and gloves for touching the patient;
• discarding of apron and gloves after use, then hand washing with liquid soap and disposable towels

Question 7

Precautions for Respiratory isolation

Answer 7

• side-room isolation;
• wearing of facemasks by staff/visitors when in the room;
• wearing of a facemask by the patient if transferred out of their room

Question 8

Precautions for Protective isolation

Answer 8

• side-room isolation;
• use of gloves and masks, as in wound and enteric infections;
• provision of filtered air;
• measures to control the risk from organisms in food

Question 9

Sequence-based methods are emerging, such as _______________ where a portion of seven housekeeping genes are sequenced to produce a numerical code for the organism.

Answer 9

Multilocus Sequence Typing (MLST)