Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Immno Multi Choice
Immunology Questions Medical Laboratory Science Multiple Choice
| Question | Answer |
|---|---|
| Which 2 are common to both RNA and DNA? a) exists primarily as single-stranded molecule. b) consists of sugar, phosphate reside, and a purine or pyrimidine base. c) contains pyrimidine and uracil. d) linked by phophodiester bonds | b)consists of sugar, phosphate reside, and a purine or pyrimidine base. d) linked by phophodiester bonds |
| 12 weeks after onset of the disease, pt with uncomplicated acute hep B usually will demonstrate what in their serum? a) HBsAg b) Anti-HTLV c) Anti-HBe d) Anti-HIV | c) Anti-HBe |
| Define hapten: a) a carrier molecule for an antigen that is not an antigen alone b) a nonimmunogenic material capable of stimulating an immune response only when bound to a carrier protein c) an Ig functional only in the presence of complement | b) a nonimmunogenic material capable of stimulating an immune response only when bound to a carrier protein |
| The rheumatoid factor in rheumatoid arthritis is primarily which type of Ig? a) IgM b) IgG c) IgA d) IgD | a) IgM |
| Light chains of Ig can be comprised of? a) alpha or beta b) alpha or lambda c) kappa or lambda d) kappa or beta | c) kappa or lambda |
| Corneal tissue may be transplanted successfully from one PT to another because: a) the absence of class II transplantation antigens b) the cornea is non-antigenic c) anti-corneal antibodies are easily suppressed d) corneal antigens dont activate Tcell | a) the absence of class II transplantation antigens |
| What is the half life of IgG? a) 2-3 days b) 1-3 days c) 7 days d) 23 days | d) 23 days |
| Which is responsible for causing graft-versus-host reactions? a) lymphocytes b) monocytes c) granulocytes d) platelets | a) lymphocytes |
| What class of Ig is able to agglutinate RBCs after anti-human globulin is added? a) IgG b) IgA c) IgM d) IgE e) IgD | a) IgG |
| The prozone effect, when performing a screening titer, is most likely to result in: a) false positive b) false negative c) no reaction d) mixed reaction | b) false negative |
| Which assay is most helpful in identifying specific allergens? a) RAST b) RIA c) CRP d) complement fixation | a) RAST |
| What part of the Ig molecule is responsible for the different classes? a) Fc b) Fab c) heavy chains d) light chains | c) heavy chains |
| What disease is suspected with these findings? Total Protein=8.4 gm/dL | ANA >1:2560 speckled | CRP = pos | C3 = 30 | C4 = 5 a) scleroderma b) Sjogren's syndrome c) SLE d) rheumatoid arthritis | c) SLE |
| What mediator is released during Tcell activation? a) serotonin b) lymphokines c) thymosin d) Ig e) cytoplasmic granules | b) lymphokines |
| Which of the following genes initiate synthesis of DNA, promote cell division, and inhibit cell death? a) proto-oncogenes b) tumor suppressor genes c) oncogenes d) levi | a) proto-oncogenes |
| HLA-A and HLA-B antigens can be detected using which of the following techniques? a) standard crossmatch b) immunofluorescent staining c) lymphocyte cytotoxicity d) mixed lymphocyte cultures | c) lymphocyte cytotoxicity |
| T or F: The DNA strand ending with a phosphate group is the 5' end. | True |
| What reaction occurs when an insoluble antigen is mixed with its specific antibody? a) precipitation b) agglutination c) sensitization d) fixation | b) agglutination |
| What reaction occurs when a soluble antigen is mixed with its specific antibody? a) precipitation b) agglutination c) sensitization d) fixation | a) precipitation |
| Which is not considered one of the systemic autoimmune rheumatic diseases? a) Systemic lupus erythematosus b) Systemic sclerosis c) Rheumatoid arthritis d) Hashimoto disease | d) Hashimoto disease |
| What temp is optimal for Taw polymerase activity? a) 20 degrees C b) 37 degrees C c) 72 degrees C d) 95 degrees C | c) 72 degrees C |
| In skin tests for an allergy, a wheal and flare development indicates what? a) immediate hypersensitivity b) delayed hypersensitivity c) anergy d) arthus reaction | a) immediate hypersensitivity |
| What is the "gold standard" for ANA detection a) RIA b) ELISA c) lateral flow immunoassay d) slide-base IFA | d) slide-base IFA |
| A cause of false-positive results in RPR test for syphilis is: a) strep infection b) staph infection c) HIV d) infectious mono | d) infectious mono |
| Phagocytosis is greatly enhanced by: a) hemolysins b) opsonins c) haptens d) antitoxins | b) opsonins |
| Which nitrogenous base is present in DNA but not in RNA? a) guanine b) cytosine c) adenine d) thymine | d) thymine |
Created by:
AM3GA
Popular Laboratory Science sets