Complement proteins can be activated to cause a Mast cell de

Complement proteins can be activated to cause: a. Mast cell degranulation b. Opsonization c. Chemo t-axis d. All of the above A patient who is HIV positive starts to exhibit signs of AIDS. The nurse will accurately interpret that the patient now has. AIDS, defining illness after noting which of the following? a. Low viral load and high white blood cell count (WBC) b. High CD4 count and symptoms of immunodeficiency c. High while blood cell count (WBC) and anemia d. High viral load and CD4 count below 200 cells/mm^3 Which of the following best describes type I hypersensitivity? a. An immediate allergic or anaphylactic type of reaction b. Antibodies arc formed against antigens on cell surfaces c. Antigen-antibody complexes arc deposited in tissues d. Reactions do not require antibody production Type IV hypersensitivity reactions involve: a. T-cell mediation b. Sensitized T helper cells c. Autoimmune production of antibodies d. A and 13 are correct Type III hypersensitivity occurs when: a. Antigen- antibody complexes are deposited in tissues and result in the activation complement b. When mast cells degranulate to produce an allergic reaction c. Antibodies are formed against antigens on cell surfaces d. Reactions do not require antibody production

Solution

8. Answer is b, complement takes part in opsonization.

9. d is the answer , in AIDS CD 4 count goes down.

10. Type I hyersensitivity characterised by immediate allergic reaction and antibody against antigen on cell that is mainly IgE. answer would be a well suited

11. option d is right answer

12. Option a is right answer

in type III , Ag-Ab complex are not cleared and therfore causes immune reaction