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- 6) How would the diagnosis of syphilis be confirmed? A) Dark-field microscopy B) Blood antibody test C) PCR D) All of these tests can be used in diagnosis.All of the following are true concerning the Alere HIV test except: a)this test can detect infection 10 days post exposure b)the presence of three lines on the test indicates a positive reaction for anitgen and antibody against HIV c)unlike Oraquick the test is run with blood sample only and not oral fluid d)the presence of a single line indicates that a person has antibodies but no antigen for HIV e)this is a test that is considered both a direct and indirect test for HIV diagnosisWhat can you say about a positive latex agglutination test? Question 3 options: A It shows the patient is sick with the disease B It shows the patient has never been exposed to the disease C It shows the patient has both the antibodies and the antigen for a disease D It shows no agglutination E It shows the patient has the antibodies to a disease
- You performed an Elisa test in the lab to detect antibody against HIV in the patient's serum. The test was found to be 96% sensitive. What does that mean? A western blot was used on the same sample to confirm, and the test was found to be 99% specific. What does that mean?which combination of tests would be the most reliable and practical in diagonsing an HIV infection? a)Elisa, Oraquick adance b)P 24 antiboy, Western blot c)Bombo Antigen/antibody quick test, PCR testing d)oraquick advance antibody test, ELISA e) Western blot, PCR testingYou have a suspension of fungal cells and have narrowed it down to 2 different types of fungus. You have solutions of 2 types of antibodies. 1. Antibody A recognizing and antigen on Fungus A 2. Antibody B recognizing and antigen on Fungus B The antibodies you have on hand are NOT labeled with an enzyme, dye, or fluorescence and you do NOT have sheep's blood. Which test would you do to determine this if your sample is Fungus A or Fungus B. A. precipitin B. agglutination C. complement fixation D. fluorescently labeled microscopy E. ELISA
- Which of the following vaccines is not administered by intramuscular injection? a. Measles vaccine b. DPT c. Tetanus toxoid d. Heap-B vaccineChoose all that are correct about indirect ELISA. A) An antigen can bind the substrate B) A secondary antibody can bind the antigen C) A secondary antibody can bind a primary antibody D) A primary antibody can bind an antigen1. There is a lot of misinformation about vaccines. Describe one false claim you have heard about vaccine safety /effectiveness.
- Which of the following is NOT TRUE about immunological tests? Question 2 options: A Antibodies can be used to detect specific antigens B An agglutination reaction is the reaction of an antibody with a soluable antigen C An agglutination reaction is the result of a particulate antigen with a specific antibody D Based on reactions between antigen and antibody E Precipitation reactions cannot be seen with the naked eye1. Which of these methods will allow quantification of a vaccine? a. Immunocytochemistry b. Flow Cytometry c. Western Blot d. ELISA 2. Sanger sequencing depends on _____________ during in vitro DNA replication a.random incorporation of fluorescent-labelled deoxynucleotides which releases a color after being added to the DNA chain b.random incorporation of pyrophosphate-labelled deoxynucleotides which a releases color upon addition of substrate c.random incorporation of fluorescent-labelled dideoxynucleotides which terminates the growing chain d. subsequent ligation of a DNA octamer with two known specific bases1) Describe the key processes involved in vaccine manufacturing.