o results: tubes 1-4 (Todd Units 125): No hemolysis/ Tube 5 (Todd Units 166): He

Question

o results: tubes 1-4 (Todd Units 125): No hemolysis/ Tube 5 (Todd Units 166): Hemolysis a. positive Todd Units 125 b. positive Todd Units 166 c. negative d. impossible to interpret The antigen used to determine the antigenic grouping of 7 enteric bacteria is: a. o b. H c. K d. Vi 8. A 22 year old woman is admitted to the hospital for fever of unknown origin and lower back pain. Test results are as follows: RA latex 1: 40 RPR FTA-Abs NR ANA 1:80 Anti-DNA The results are consistent with: a. SLE b. rheumatoid arthritis c. autoimmune hemolytic anemia d. latent syphilis 9. A cold agglutinin titer is performed the results are as follows: Dilution 1/2 1/4 Patient 4+ 1/8 1/16 1/32 1/64 1/128 4+ 1+ 0 The patient's titer is: a. 8 b. 16 c. 32 d. 64 1o. Serological diagnosis of febrile disease is presumptive when the acute serum titer is: a. four fold higher than convalescent b. four fold lower than convalescent c. increased significantly d. equal to convalescent titer

Explanation / Answer

Answer:

6) Interpret the following antistreptolysin O (ASO) results ?Tube # 1-4(Todd unit 125) no hemoysis, Tube 5 (Todd unit 166) hemolysis

7) The antigen used to determine the antigenic group of enteric bacteria is:

8) A 22 year old woman is admitted to the hospital for fver of unknown origin and lower back pain. The results are consistent with:

9) A cold agglutinin titer is performed the results are as follows. The patient's titer is:

10) serological diagnosis of "febrile disease" is presumptive when the acute serum titer is

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