Mycobacterium Tuberculosis Has Traditionally Been Identi?ed in Patient Samples Using

question 23

Multiple Choice

Mycobacterium tuberculosis has traditionally been identi?ed in patient samples using biochemical tests, and more recently through DNA probe analysis. In vivo testing can also be completed using the tuberculin skin test. A more recent test that seems to be surpassing the others is the QuantiFERON-TB gold test. Blood samples are mixed with protein antigens of M. tuberculosis. After 16 to 24 hours of incubation, the amount of the cytokine interferon produced by the patient's cells is measured. If the patient is infected with M. tuberculosis, their WBCs will release interferon in
Response to contact with the tuberculosis protein antigens. This test falls under which category of identi?cation tests?

• A) Microarray test
• B) DNA ?ngerprinting test
• C) Immunologic test
• D) Genotypic test
• E) Enzymatic test

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Definitions:

Crowding Out Effect

A situation where increased government spending leads to reduced investment in the private sector, often due to higher interest rates.

Government Borrowing

The process by which a government obtains funds from external sources, such as issuing bonds, to finance its expenditures that exceed its income.

Beta

A measure of a security’s or portfolio's volatility in relation to the overall market.

Fed Funds Rate

The interest rate at which depository institutions lend reserve balances to other depository institutions overnight, set by the Federal Reserve.