A Direct Antiglobulin Test Is Ordered on a Patient Sample

question 16

Multiple Choice

A direct antiglobulin test is ordered on a patient sample.This test detects:

• A) in vivo attachment of antibodies to red blood cells.
• B) allergic reaction.
• C) passive agglutination.
• D) naturally occurring antibodies.

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Definitions:

Formation

A rock unit that is distinct, laterally traceable, and mappable; also used as an informal term for an eroded, perhaps unusually shaped, mass of rock.

Cross Beds

Sedimentary layers deposited at an angle to the horizontal, typically formed by wind or water currents.

Well-sorted

Describes sediment in which grains are of nearly the same size.

Sand Grains

Small particles of minerals or rocks, typically found in beaches, deserts, and riverbeds, sized between 0.0625 to 2 millimeters.