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Blood is drawn from a living suspect involved in an automobile accident. If the specimen is kept unrefrigerated and at a moderately warm temperature the alcohol concentration can be expected to:

a. Remain unchanged.
b. Increase with time.
c. Decrease with time.
d. Either increase or decrease with time.

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Answer:

The correct option is C) Decrease with time.

Explanation:

Alcohol has a short life span in an individual's body. Mostly,alcohol is removed by the liver in the body. But the human liver can excrete a limited quantity of alcohol in every hour. The rest of the alcohol stays in the blood.

When blood is left unrefrigerated, the alcohol was metabolized by the blood. The hemoglobin got converted into oxy- hemoglobin ad metabolized the alcohol.

If the blood was refrigerated, then hemoglobin would not have been active to perform this function.

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