102. A 29-year-old woman who is an intravenous drug user is found to have increased serum AST and ALT activities. Immunologic testing shows positive results for hepatitis B surface antigenand total antibody to hepatitis B core antigen, and negative results for IgM antibody to hepatitis B core antigen. This patient will recover from this hepatitis B virus infection and be protectedfrom subsequent similar infections with this virus if she generates which of the following immune responses?A) Cytotoxic T-lymphocyte responseB) Production of neutralizing antibodiesC) Type II (complement-mediated cytotoxic) hypersensitivity responseD) Type III (immune complex-mediated) hypersensitivity responseE) Type IV (delayed) hypersensitivity response

Serum AST and ALT Activities: They are found primarily in liver cells. When liver cells are damaged,…

Answered: 102. A 29-year-old woman who is an…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Similar questions

What are main actions of cyclosporine of one of the most selective immunosuppressive agents?
Explain why IgM has a stronger power of agglutination than antibodies of any other class.
How different are theactions of antibodies againstbacteria and against virus?Why is the cellular immuneresponse activated in case ofchronic viral infection?
1) SDS PAGE gels can be probed with NBT/BCIP to perform an immunoblot true/ false 2) the direction of migration of protiens through a matrix is due to most proteins in natur having a net negative charge true/false 3) PBST is a buffer that is used for blocking the membrane during immunoblotting. true/false 4) the buffer used during for transferring proteins to nitrocellulose methanol. true/false 7) The size of the pores of a polyacrylamide gel dcreases as concentrations of polyacrylamide increases. True or false 10) The secondary antibody used in laboratory for western blotting is conjugated to which enzyme A) Alkaline decarboxylase B) GAPDH C) Alkaline Phosphatase D) Horseeradish peroxide 13) In protien electrophroresis, what reagent present in the sample buffer is used to eliminate difference in the charge densities of protein A) SDS B) 2- mercaptoethanol C) Tris-HCL pH6.8 D) Tris- HCL PH 8.8
In a patient of 60 years old after the surgical removal of stomach cancer and subsequent treatment, an enlarged lymph node in the left supraclavicular area was detected. Atypical cells, which were similar to the cells of a previously removed tumor, were found after the biopsy of this lymph node, Questions: 1) What typical pathological process (TPP) has developed in the lymph node? 2) Indicate the stages of this TPP. 3) Indicate possible ways of tumor cells spreading throughout the body.
142. A 1-year-old boy has had recurrent pyogenic infections of the skin and upper respiratory tract. His brother died at the age of 6 months from an undiagnosed infection; his sister appears healthy. Laboratory studies of serum show: IgG IgA, IgM Peripheral lymphocytes 120 mg/dL undetectable 80% T lymphocytes, <1% B lymphocytes Which of the following findings is most likely on examination of tonsillar tissue? OA) Absence of lymphoid follicles and germinal centers B) Absence of macrophages C) Decreased cellularity of the parafollicular cortex D) Hyperplasia of endothelial cells lining lymphatic sinusoids E) Increased numbers of eosinophils and plasma cells
In radial immunodiffusion what are the circular precipitating rings composed of, and what do they represent?
1) Discuss the formation of ABH antigens 2) Enumerate the components of CPDA-1 and discuss their respective functions
(26) A laboratory animal is shceduled to be immunized by receiving 3 weekly injections of antigen X. After the last immunization, it is discovered that the preparation used for the final immunizaton was not purified to homogeinity and also contained antigen Y. Which of the following is the most likely to be the primary class of the antibodies to antigen Y in the blood drawn 2 days after the klast injection (A) IgA (B) IgD (C) IgE (D) IgG (E) IgM
At 5 months of age, Christina Kitchenman was admitted to the hospital with a fever and a severe non-productive cough that was subsequently determined by immunofluorescence staining to be pneumocystosis, a form of pneumonia caused by an opportunistic yeast-like fungus. Her CD4 T-cell count (220 μl –1) was much lower than expected, at only one-third of her CD8 T-cell count (650 μl –1). Her B-cell count was slightly higher than normal. An immunodeficiency was suspected, so T-lymphocyte functionality tests were carried out, proving that Christina’s T cells did not respond to a specific antigen stimulus involving tetanus toxoid as a recall antigen, even though she had received routine vaccination for tetanus (DPT vaccine) several months previously. Normal T-cell proliferation responses, however, were detected upon exposure of peripheral blood mononuclear cells to either the plant lectin mitogen phytohemagglutinin or to allogeneic B lymphocytes. Further tests revealed hypogammaglobulinemia,…
List 2 siutations which will trigger clonal anergy. Why could clonal anergy potentially be beneficial (useful)?

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