Diagnosing Infectious Diseases Flashcards
Three components of specimen quality
proper selection
proper collection
proper transport
what is bacteremia?
presence of bacteria in blood
what is septicemia?
presence of bacteria and its toxins @ blood
How is CSF collected? what general procedure
lumbar puncture
True or false. CSF must be refrigerated at all times
false, it may done so only for viral studies (but up to 24 hours only)
All are properties of CSF at pyogenic meningitis except
a. clear and watery
b. high protein
c. reduced or absent glucose
a. clear and watery
turbid dapat
All are properties of CSF at tubercular meningitis except
a. cobweb like clotting
b. slightly elevated protein
c. normal glucose
c. normal glucose
reduced dapat
All are properties of CSF at aseptic meningitis except
a. cobweb like clotting
b. slightly elevated protein
c. normal glucose
a. cobweb like clotting
clear and watery dapat
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
d. Amie’s medium –> for CSF
purpose of serological typing
to identify strain and minimize possibility of widespread outbreaks
What is suprapubic aspiration?
collection of bladder urine
In clean catch urine collection, what “stream” must be collected?
midstream urine
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
c, kasi dapat ref at 4 degrees Celsius
true or false: in wound infections, tissue obtained at surgical procedures are best
true, organisms present are usually cause of infection
true or false: in wound infections, swab specimens are most susceptible to contamination
true
All may be used for transporting superficial wound sample except
a. 1.8% boric acid
b. Stuart’s medium
c. Amie’s medium
A
true or false: anaerobic transporter needed for deep lesions
true
identify the media: equal parts of glycerol and 0.033 M phosphate buffer
buffered glycerol transport medium
identify the media: buffered semisolid agar, sodium thioglycolate
Stuart’s transport medium
most commonly used method for collecting urine
catheterization
disinfection of animate object to reduce/eliminate contaminant organisms on uninvolved area
antisepsis
