In Systemic Lupus Erythematosis (Called Lupus), Complexes of Antibody and Antigen

question 79

Multiple Choice

In systemic lupus erythematosis (called lupus) , complexes of antibody and antigen form, and these immune complexes insert themselves into small blood vessels, joints, heart, and kidney, causing damage to the organ tissue. The course of the disease is unpredictable, with periods of illness alternating with remissions. How is lupus, a type III autoimmune disease, similar to the tuberculin reaction, a type IV hypersensitivity reaction?

• A) Both lupus and the tuberculin reaction are immediate hypersensitivities, occurring within a few hours.
• B) Both lupus and the tuberculin reaction involve large amounts of antibody production.
• C) The mechanism of both lupus and the tuberculin reaction involve large amounts of in?ammatory chemicals released into tissue.
• D) Both lupus and the tuberculin reaction utilize IgE in their mechanisms.

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Definitions:

NPV Rule

The principle that an investment is considered acceptable if its net present value (NPV) is positive, under the context of discounted cash flow analysis.

Decision-Maker

An individual or group responsible for making choices that will impact themselves or others, often involving allocation of resources or resolutions in the face of challenges.

Zero NPV

A scenario in which the net present value of a project or investment is zero, indicating that the projected cash flows exactly discount the initial investment, showing neither a loss nor a gain.

Multiple IRRs

A phenomenon that occurs when there is more than one internal rate of return for a project due to changing cash flow signs over the project's lifetime.