Diagnosing Infectious Diseases

Question 1

Three components of specimen quality

Answer 1

proper selection
proper collection
proper transport

Question 2

what is bacteremia?

Answer 2

presence of bacteria in blood

Question 3

what is septicemia?

Answer 3

presence of bacteria and its toxins @ blood

Question 4

How is CSF collected? what general procedure

Answer 4

lumbar puncture

Question 5

True or false. CSF must be refrigerated at all times

Answer 5

false, it may done so only for viral studies (but up to 24 hours only)

Question 6

All are properties of CSF at pyogenic meningitis except

a. clear and watery
b. high protein
c. reduced or absent glucose

Answer 6

a. clear and watery

turbid dapat

Question 7

All are properties of CSF at tubercular meningitis except

a. cobweb like clotting
b. slightly elevated protein
c. normal glucose

Answer 7

c. normal glucose

reduced dapat

Question 8

All are properties of CSF at aseptic meningitis except

a. cobweb like clotting
b. slightly elevated protein
c. normal glucose

Answer 8

a. cobweb like clotting

clear and watery dapat

Question 9

All may be used as transport medium for stool except

a. Cary Blair
b. Buffered glycerol transport medium
c. Stuart’s transport medium
d. Amie’s medium

Answer 9

d. Amie’s medium –> for CSF

Question 10

purpose of serological typing

Answer 10

to identify strain and minimize possibility of widespread outbreaks

Question 11

What is suprapubic aspiration?

Answer 11

collection of bladder urine

Question 12

In clean catch urine collection, what “stream” must be collected?

Answer 12

midstream urine

Question 13

If delay of more than 2 hours is anticipated, any of the ff may be done to the urine sample except

a. container with 1.8% boric acid
b. urine transport tube
c. do not put in fridge

Answer 13

c, kasi dapat ref at 4 degrees Celsius

Question 14

true or false: in wound infections, tissue obtained at surgical procedures are best

Answer 14

true, organisms present are usually cause of infection

Question 15

true or false: in wound infections, swab specimens are most susceptible to contamination

Answer 15

true

Question 16

All may be used for transporting superficial wound sample except

a. 1.8% boric acid
b. Stuart’s medium
c. Amie’s medium

Answer 16

A

Question 17

true or false: anaerobic transporter needed for deep lesions

Answer 17

true

Question 18

identify the media: equal parts of glycerol and 0.033 M phosphate buffer

Answer 18

buffered glycerol transport medium

Question 19

identify the media: buffered semisolid agar, sodium thioglycolate

Answer 19

Stuart’s transport medium

Question 20

most commonly used method for collecting urine

Answer 20

catheterization

Question 21

disinfection of animate object to reduce/eliminate contaminant organisms on uninvolved area

Answer 21

antisepsis