In the two-tier system for serological diagnosis of Lyme Disease:

Structures important in the microscopic identification of Coccidiodes immitis are:

The image below shows the results of O-F media. The organism is considered to be

A Gram-negative bacillus isolated from a stool specimen which appears curved on the Gram stain and grows best at 42 degrees C in reduced oxygen and increased carbon dioxide is most likely:

Which of the following agars is used for selective isolation of C. difficile?

Two standard deviations (2SD) from the mean in a normal distribution curve would include

Two OF tubes are removed from the incubator. The tubes do not contain a mineral oil overlay and caps are loose. The tech notices that both tubes have turned yellow. What can be concluded about this test?

An organism is isolated from the burn and is found to be a gram negative, oxidase negative fermentative rod which, when subcultured to SBA and MAC at room temperature, produces the following: What organism is most likely identified?

A patient with a nosocomial pneumonia has a sputum gram stain that shows many WBCs and numerous small gram negative coccobacilli.  The organism grew in 24 hours as a mucoid hemolytic colony on SBA and a colorless colony on MAC.  The organism has the following characteristics: catalase positive, oxidase negative, arginine negative, lysine negative, nitrate negative, and ONPG negative.  The organism is:

One of the easiest ways to distinguish anemia of acute blood loss from anemia of chronic blood loss in the lab is that