Author: Anonymous

A patient’s red cells forward as group O and the serum agglutinates only the B cells (4+). Your next step would be to:

A blood stool from a 26-year-old woman with 3 days of severe diarrhea showed the following results at 48 hours after being plated ont he following media:MacConkey agar: little normal flora with many NLF colonies, HE agar: many blue-green colonies, Campylobacter blood agar and C. difficile agar: no growth.The clear colonies from the MacConkey agar was tested and was negative for oxidase, negative for indole, negative urease, negative motility, and negative H2S production. The most likely identification is:

The porphyrin test was devised to detect strain of Haemophilus capable of:

A patient had a transfusion reaction to packed red blood cells. The laboratory scientist began the laboratory investigation of the transfusion reaction by assembling pre- and post- transfusion specimens and all papererwork and computer printouts. A clerical check was performed and the patient’s info matched on everything. What should be done after the clerical check?

Media that contains dyes, antibiotics, or other chemcial compounds that inhibit certain bacteria while allowing others to grow are called:

Pathogenic Shigella spp.characteristically are:

In performing a spinal fluid protein determination, the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration, the result must be:

Creatinine concentration in the blood has a direct relationship to:

In a disk diffusion suscpetibility test, which of the following can result if disks are placed on the inoculated media and left at room temperature for an hour before incubation. 

Which of the following types of leukemia is most associated with children ages 2 to 10 year?