In a Direct ELISA Test to Screen for Drugs in a Patientʹs

question 41

Multiple Choice

In a direct ELISA test to screen for drugs in a patientʹs urine, what is the third step in the test process?

• A) enzyme-labeled antibodies against the drug being tested is added
• B) substrate for the enzyme is added
• C) antibody against the drug being tested is added
• D) the patientʹs urine sample is diluted

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Definitions:

25-year Annuity

A financial product that provides a series of payments made at equal intervals over 25 years.

Compounded Semi-annually

A method of computing interest where the interest is calculated and added to the principal twice a year.

Periodic Interest Rate

The interest rate applied to a loan or investment over a specific period of time, less frequently than annually.

Compounded Monthly

The method of calculating interest where the accrued interest is added to the principal sum each month, leading to interest on interest the following month.