What type of antigen is used in the RPR card test for syphilis?

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 patient had surgery for colorectal cancer, after which he received chemotherapy for 6 months. The test for carcinoembryonic antigen (CEA) was normal at thist time. One year later, the bimonthly CEA was elevated (above 10ng/mL). An examination and biopsy revealed the recurrance of a small tumor. What was the value of the CEA test results in this clinical situation? 

The smallest concentration of antimicrobial agent which prevents growth in subculture or results in 99.9% decrease of the initial inoculum, is the definition of:

Which T cell expresses the CD8 marker and acts specifically to kill tumors or virally infected cells?

Which of the following combinations of organisms would be appropriate as controls to test the functions listed:

Heterophile antibodies are identified in which disease?

An immunofluorescence microscopy assay (IFA) was performed (ex. ANA testing for patterns), and a significant antibody titer was reported. Positive and negative controls performed as expected. However, the clinical evaluation of the patient was not consistent with a positive finding. What is the most likely explanation of this situation? 

An unsual number of methicillin-resistant Staphylococcus aureus (determined by the Kirby-Bauer method) were isolated in the laboratory in the past month. Which of the following is the most likely explanation for this?

A male college freshman is seen at the college health service complaining of general fatigue, a sore throat, and swollen lymph nodes in his neck. A throat culture is done, blood is drawn for hematology studies and a rapid MonoSlide test is performed. Hematology results show a normal hemoglobin value and a slight inrease in the white cell count, with many large, reactive lymphocytes seen in the differential. A rapid strep test is negative, but a second swab is cultured on sheep blood agar and incubated, with the result to be read in 18 hours. The result from the MonoSlide test is positive. From these findings, what is the probable diagnosis for this patient?