NC INTOX EC/IR II STUDY GUIDE | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
What are the 3 basic units of metric measure? - (ANSWER)Meter, Liter, and Grams
What is the temperature of the human body? - (ANSWER)98.6 Degrees
What is the temperature of breath leaving the body? - (ANSWER)40 Degrees Centigrade
In regards to operating temperatures what does the Intox EC/IR II do? - (ANSWER)The Intox EC/IR II
constantly monitors operating temperatures throughout testing
What is Ethyl Alcohol? - (ANSWER)Also known as ethanol in its purest state is a clear, colorless liquid,
which possesses a pungent odor and produces a burning taste sensation.
What are Congeners? - (ANSWER)Compounds or impurities that constitute a very small proportion of
the total volume of a alcoholic beverage.
What is the proofing system? - (ANSWER)Twice the percentage of alcohol by volume. 86 proof would be
43% alcohol by volume.
How does the body handle ethanol? - (ANSWER)Absorption, Distribution, Elimination
Absorption - (ANSWER)The process of moving alcohol from the stomach and upper small intestine to the
blood compartment.
How is ethanol digested by the body? - (ANSWER)Not digested but absorbed unchanged
Residual alcohol - (ANSWER)Alcohol which remains in the mouth also known as mouth alcohol.
How long does it take for residual alcohol to diminish below significant levels? - (ANSWER)15 minutes
, NC INTOX EC/IR II STUDY GUIDE | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
Pyloric Sphincter - (ANSWER)Muscular ring connecting the base of the stomach with the upper small
intestine.
Duodenum - (ANSWER)Upper small intestine
What has the most effect on alcohol absorption? - (ANSWER)The quantity of food substances ingested
with or immediately prior to consumption
How long does it take for complete absorption to occur? - (ANSWER)30 to 90 minutes
Distribution - (ANSWER)The process of distributing alcohol between blood and all other tissue water
compartments. A naturally occurring dynamic equilibrium created by alcohol's natural attraction to
water.
What percentage of a female's body is made of water? - (ANSWER)58%
What percentage of a male's body is made of water? - (ANSWER)65%
Elimination - (ANSWER)The process of breaking down (live metabolism) or excreting (lung and kidneys)
alcohol by the body.
What percentage of the metabolic processes account for the elimination of consumed alcohol? -
(ANSWER)90-95%
What is the rate of oxidation for a general non-alcoholic? - (ANSWER)0.0165 per hour
Why is it important to collect a alveolar or deep lung sample when testing? - (ANSWER)if that type of
sample isn't collected the sample will be diluted with breath of lower alcohol concentration from the
upper respiratory tract.
COMPLETE SOLUTION
What are the 3 basic units of metric measure? - (ANSWER)Meter, Liter, and Grams
What is the temperature of the human body? - (ANSWER)98.6 Degrees
What is the temperature of breath leaving the body? - (ANSWER)40 Degrees Centigrade
In regards to operating temperatures what does the Intox EC/IR II do? - (ANSWER)The Intox EC/IR II
constantly monitors operating temperatures throughout testing
What is Ethyl Alcohol? - (ANSWER)Also known as ethanol in its purest state is a clear, colorless liquid,
which possesses a pungent odor and produces a burning taste sensation.
What are Congeners? - (ANSWER)Compounds or impurities that constitute a very small proportion of
the total volume of a alcoholic beverage.
What is the proofing system? - (ANSWER)Twice the percentage of alcohol by volume. 86 proof would be
43% alcohol by volume.
How does the body handle ethanol? - (ANSWER)Absorption, Distribution, Elimination
Absorption - (ANSWER)The process of moving alcohol from the stomach and upper small intestine to the
blood compartment.
How is ethanol digested by the body? - (ANSWER)Not digested but absorbed unchanged
Residual alcohol - (ANSWER)Alcohol which remains in the mouth also known as mouth alcohol.
How long does it take for residual alcohol to diminish below significant levels? - (ANSWER)15 minutes
, NC INTOX EC/IR II STUDY GUIDE | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
Pyloric Sphincter - (ANSWER)Muscular ring connecting the base of the stomach with the upper small
intestine.
Duodenum - (ANSWER)Upper small intestine
What has the most effect on alcohol absorption? - (ANSWER)The quantity of food substances ingested
with or immediately prior to consumption
How long does it take for complete absorption to occur? - (ANSWER)30 to 90 minutes
Distribution - (ANSWER)The process of distributing alcohol between blood and all other tissue water
compartments. A naturally occurring dynamic equilibrium created by alcohol's natural attraction to
water.
What percentage of a female's body is made of water? - (ANSWER)58%
What percentage of a male's body is made of water? - (ANSWER)65%
Elimination - (ANSWER)The process of breaking down (live metabolism) or excreting (lung and kidneys)
alcohol by the body.
What percentage of the metabolic processes account for the elimination of consumed alcohol? -
(ANSWER)90-95%
What is the rate of oxidation for a general non-alcoholic? - (ANSWER)0.0165 per hour
Why is it important to collect a alveolar or deep lung sample when testing? - (ANSWER)if that type of
sample isn't collected the sample will be diluted with breath of lower alcohol concentration from the
upper respiratory tract.
