Sheep Blood agar is stabbed when inoculating bacteria to enhance hemolysis caused by:
a. streptolysin O.
b. streptolysin S.
c. streptokinase.
d. hyaluronidase.
Induction of capsule formation by B. anthracis can be accomplished with _____ agar.
a. 5 sheep blood
b. PLET acetate
c. bicarbonate
d. urea
Rejection of inappropriately collected or transported specimens:
a. is the sole responsibility of the laboratory and should be performed without regard to physician requests.
b. should be initiated by laboratory personnel but approved by the nurses or physicians responsible for the care of the patient.
c. is not in the best interest of patient care and should not be considered appropriate.
d. is the responsibility of the nursing staff and should not be an issue for laboratory personnel.
When processing a culture swab in the diagnostic laboratory the microbiologist should:
a. inoculate the media prior to making the direct smear.
b. roll the swab back and forth on the slide making sure to transfer organisms.
c. prepare the smear by rubbing the slide with one side of the swab and utilize the opposite slide to inoculate media.
d. cancel the direct Gram stain and only set up the media. Request a second swab for the direct smear.
Erythrogenic toxin, hyaluronidase enzyme, and hemolysins S and O are extracellular products of:
a. E. faecalis.
b. S. pneumoniae.
c. S. pyogenes.
d. S. agalactiae.
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