The Following Laboratory Results Are Associated with Which Toxic Trace

question 9

Multiple Choice

The following laboratory results are associated with which toxic trace element?
Delta-aminolevulinic acid - increased
Free erythrocyte protoporphyrin (zinc protoporphyrin) - increased
Anemia screen - positive

• A)aluminum
• B)arsenic
• C)mercury
• D)lead

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Definitions:

Fixed-ratio Schedule

A fixed-ratio schedule is a type of operant conditioning reinforcement schedule where a response is reinforced only after a specified number of responses, leading to a high, steady rate of responding.

Variable-ratio Schedule

In operant conditioning, it is a reinforcement strategy where a response is rewarded after an unpredictable number of responses, leading to high and steady response rates.

Successive Approximation

A method used in behavior therapy to gradually achieve a target behavior through small steps towards the goal.

Fixed-interval Scheduling

A type of operant conditioning reinforcement schedule where rewards are given after a fixed time period, causing a scalloped pattern of response rates.