Thayer-Martin is a selective medium designed to isolate A) ...

[HCHenry]

Thayer-Martin is a selective medium designed to isolate
 
  A) Neisseria gonorrhoeae from normal vaginal flora.
  B) Neisseria meningitidis from normal upper respiratory flora.
  C) both A and B.
  D) neither A nor B.

Question 2

The catheterized urine from a pregnant 28-year-old female at 26 weeks gestation grows 110 colonies of beta-hemolytic, gray colonies that prove to be catalase negative, PYR negative, and hippurate hydrolysis positive.
 
  There is no growth on the MacConkey agar. A 0.001 mL calibrated loop was used to inoculate both agars. This organism should be reported as
  A) >100,000 CFU/mL of Streptococcus agalactiae. B) >10,000 CFU/mL of Streptococcus pyogenes.
  C) >100,00 CFU/mL of Streptococcus pyogenes. D) >1000 CFU/mL of Streptococcus agalactiae.

[katieost]

Answer to Question 1

C

Answer to Question 2

A

[HCHenry]

TYSM

[Alyson.hiatt@yahoo.com]

Excellent