The Nurse Is Preparing to Perform a Modified Allen Test

question 22

Multiple Choice

The nurse is preparing to perform a modified Allen test. Which is an appropriate reason for this test?

• A) To measure the rate of lymphatic drainage
• B) To evaluate the adequacy of capillary patency before venous blood draws
• C) To evaluate the adequacy of collateral circulation before cannulating the radial artery
• D) To evaluate the venous refill rate that occurs after the ulnar and radial arteries are temporarily occluded

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Definitions:

Extinction

The diminishing of a conditioned response; occurs in classical conditioning when an unconditioned stimulus (US) does not follow a conditioned stimulus (CS).

Discrimination

Unfair or prejudicial treatment of people based on differences such as race, gender, age, or sexual orientation.

Conditioned Stimulus

A stimulus that was neutral at first but becomes associated with an unconditioned stimulus to trigger a conditioned response after conditioning.

Generalization

A process in learning where the response is to spread from one specific stimulus to other stimuli that resemble the original.