Fluid from a cutaneous black lesion was submitted for routine bacterial culture. After 18 hours of incubation at 35 degrees Celsius, there was no growth on MAC agar, but 3+ growth on BAP. The colonies were non-hemolytic, nonmotile, 4-5mm in diameter and off white. Each colony had an irregular edge that stood up when gently lifted. A gram stain of a typical colony showed large, gram-positive rectangular bacilli. The organism is most likely:

When examining the colony morphology on a BAP, you note that a small white colony has a raised or bulging center and appears to be convex. You should identify the morphology as:

The antibiotic typically used to treat MRSA is:

Based on colony morphology, antibiotic resistance and hemolytic pattern, the circled organism pictured is likely:  

Eleven (31%) of the approximately 36 patrons reportedly served on the evening of September 22 were contacted in an effort to determine the etiology of the outbreak. A case was defined as anyone who had vomiting or diarrhea within 6 hours of dining at the restaurant. All 11 reported nausea and vomiting; nine reported diarrhea; one reported headache; and one reported abdominal cramps. Onset of illness ranged from 1 hour to 8 hours after eating at the restaurant. Duration of illness ranged from 5 hours to several days. Ten persons sought medical treatment at local emergency rooms on September 22; two ultimately required hospitalization All persons consumed the same food items: fried shrimp; stir-fried rice; fried zucchini, and onions cucumber, cabbage, and lettuce salad; ginger salad dressing; chicken, and tea. Based on the symptom presentation and food consumed, the causative agent of the food poisoning is likely:

When grown on MacConkey Agar, organisms that DO NOT ferment lactose will be:

A 40-kg crate is being lowered with a downward acceleration is 2.0 m/s2 by means of a rope. (a) What is the magnitude of the force exerted by the rope on the crate? (b) What would be the magnitude of the force exerted by the rope if the crate were being raised with an acceleration of 2.0 m/s2?

I, the undersigned, promise to abide by the GMU honor code. I have received no unauthorized help in completing the exam. Write you name into the answer box.

A cart moves up a inclined frictionless track. Which of the following statements is correct?

People with chronic kidney disease often have hematocrits of less than half the normal value. Explain why?