You Are Performing an IAT, and You Are Suspicious of the Results

question 15

Multiple Choice

You are performing an IAT, and you are suspicious of the results. It appears there may be a weak alloantibody present. You decide to repeat the test, and at the LISS stage you decide to add an extra two drops of serum to each tube being tested. What can you expect to happen?

• A) There would be no effect.
• B) The additional serum increases reaction strengths, because more possible antibody is added to the reaction.
• C) Sensitivity of the test decreases, because you increased the ionic strength of the mixture.
• D) You lowered the zeta potential, thus enhancing your results.

---

Definitions:

Expiration Date

The date on which a derivative contract (like options or futures) becomes invalid and the right to exercise it ceases.

Indefinite Future

A time period in the future that has no defined ending or timeframe, often used in discussions about long-term possibilities or uncertainties.

Call Option

A financial contract that gives the holder the right, but not the obligation, to buy a specified amount of an underlying asset at a set price within a specified period.

Writer

In the context of options, the writer is the seller who grants the right to the buyer in exchange for a premium, assuming the risk that the asset may have to be delivered under the contract terms.