Should specimens be collected for culture before, during, or after antibiotics have been administered?  (1.16)

Pathogenic Shigella species are clear/green on Hektoen-enteric agar. (7.3)

What is the purpose of thioglycolate in media? (2.8)

A six-year-old child complains of an itchy anus, especially at night, and abdominal pain. The following is seen on a scotch-tape test. What is the causative agent?  (19.3)

Is it possible for bacteria classified as nonfermentors to use glucose in the presence of oxygen?  If so, what is a further classification of those organisms?  (9.2)

Intracellular, gram-negative diplococci found in a direct smear of a genital specimen from either a man or a woman is diagnostic for Neisseria gonorrhoeae. (3.4) 

The main bacterial cell shapes include all of the following EXCEPT:  (1.5)

Which test distinguishes Staphylococcus from Micrococcus?  (4.8)

How would you interpret a gram stain of a sputum that contained 35 WBCs/lpf and 5 squamous epithelial cells (SECs)/lpf? (3.8)

This common intestinal parasite whose troph form has two nuclei that resemble eyes and a long axoneme with two curved median bodies causes traveler’s diarrhea after drinking water from lakes, ponds, or rivers.  (19.3)