Breath Tech QUESTIONS AND VERIFIED SOLUTIONS 2
What does this Status Message mean: Insufficient Sample - ✔✔The Sample acceptance
criteria has not been met What is the definition of the Intox EC/IR II? - ✔✔The Intox EC/IR II
is an approved instrument which analyzes a sample of deep lung air and reports the results
in milligrams of alcohol in 100 millilitres of blood. What is Henry's Law? - ✔✔At a given
temperature the saturated vapour above a solution contains a concentration of solute
proportional to the concentration of the solute in the solution. What is Henry's Law applied
to breath testing? - ✔✔At 34°C the deep lung air contains a concentration of alcohol
proportional to the concentration of the alcohol in the blood. What is the Breath Blood
ratio? - ✔✔At 34°C, 2100 parts of deep lung air contain the same amount of alcohol as 1
part of blood. What are the factors that can affect a breath test result? (3) - ✔✔1. Breath
Temperature 2. Mouth Alcohol 3. Shallow Blow What is the margin of acceptability? -
✔✔The margin of acceptability for the Intox EC/IR II is an alcohol standard result within
10% of the target value of the alcohol standard. (100mg% is 90 - 110) What are the two
distinct analytical techniques to achieve a blood alcohol concentration (BAC) result? (2) -
✔✔1. Infrared Analysis (IR) 2. Electrochemical (EC) sensor (fuelcell) What is the Infrared
analysis? (2) - ✔✔1. Monitors the quality of the breath sample and is used to detect
residual alcohol in the mouth. 2 . The flow sensor continuously monitors the breath sample
to determine the exact moment to introduce the sample to the fuel cell component of the
instrument for final analyses What is the Electrochemical (EC) sensor (fuelcell)? (2) - ✔✔1.
It is specific to alcohol and facilitates a chemical reaction that results in an electrical
current 2. The current is then used to calculate the blood alcohol content present in each
sample analyzed. What is the measurement range of the instrument? - ✔✔0 to
550milligrams of ethanol in 100millilitres of blood What does the front display show? (4) -
✔✔1. Location 2. Instrument serial number 3. Date and time 4. Any warning conditions that
may affect the operation of the instrument How does the pressure sensor tubing work? (2) -
✔✔1. Monitors the flow rate and volume of the subject's breath used. 2. Monitors ambient
atmospheric pressure to determine the correction factor for dry gas standards. This
reading is used to determine the target value for the dry gas alcohol standard at the time of
the test (the target value varies according to atmospheric pressure). How does the
instrument protect against radio frequency interference (RFI)? (2) - ✔✔1. This cage, which
includes the design and sealing of the metal body of the instrument, is found over the
sensitive components on the motherboard 2. Faraday cage is an enclosed conducting
shell that shields its interior from strong electric fields and electromagnetic waves. What
are the sample acceptance criteria for the Intox EC/IR II? (3) - ✔✔1. minimum flow rate of
, 12 L/min (0.2 L/sec), and 2. minimum volume of 1.5 L, and 3. a 5% drop in flow rate after
minimum volume is reached. What is the criteria of a proper breath test (PBT)? (3) - ✔✔1.
Two suitable breath samples which agree within 20 mg% of each other. 2. Two
DIAGNOSTIC TESTS that have PASSED. 3. Two ALCOHOL STANDARD tests within 10% of
the target value. What is the Alcohol Standard for a wet bath simulator solution? -
✔✔100mg% (plus or minus 10) What is the Alcohol Standard for a dry gas simulator
solution? - ✔✔It varies based on the atmospheric pressure of where the instrument is
located. (Measured by the pressure-sensing tubing) Winnipeg is usually 79-80mg% (plus or
minus 10) How do print your last test results? - ✔✔Letter P How do you do a quick test? -
✔✔F2 How do change the gender from male to female? - ✔✔Spacebar or letters M/F How
do you conduct a proper observation period? - ✔✔1. Search the subject to ensure they do
not have products containing alcohol on their person. Check the mouth of the subject and
ensure it contains no foreign objects such as tobacco, gum, food or other unusual objects
as they may retain alcohol or present a choking hazard. Remove any objects if present. It is
not required that piercings and dentures be removed. 2. Place the subject in the observer's
field of view and within close proximity where clues of consumption, burps, or vomiting
can be detected. 3. Observe the subject for at least 15 continuous minutes prior to each
breath test, ensuring the subject does not drink any alcoholic beverages or other liquids,
and does not place anything in their mouth, burp or vomit. What are interfering
substances? - ✔✔Typically when we refer to alcohol, we are referring to ethyl alcohol
(ethanol), but there are other types of alcohols that may be present on a subject's breath.
Methyl alcohol (methanol) and isopropyl alcohol (isopropanol) are two commonly
available substances that may be consumed for their intoxicating effects. Methanol can be
found in windshielf was Isopropanol is most commonly sold as rubbing alcohol and can be
found in some hand sanitizers, perfume, cologne and cosmetics Methanol and
isopropanol are capable of producing a reaction on a fuel cell. What happens if
isopropanol or methanol goes into the instrument? - ✔✔The Intox EC/IR II has a
mechanism to detect and distinguish these different substances by monitoring the
reaction profile in the fuel cell. When ethyl alcohol is introduced into the fuel cell, the
reaction profile is predictable and consistent. When other volatile substances such as
methanol or isopropanol are introduced into the fuel cell, the reaction profile of the fuel
cell is different. Can other things get a reaction from the fuel cell? - ✔✔While rare, some
individuals will consume substances other than ethyl alcohol, either knowingly or
unknowingly. In order for a substance to increase a breath test result, it must be volatile,
non-toxic, present on the breath in sufficient quantities and produce a reaction on the fuel
cell. What do you do if you get a "interfering substance message"? - ✔✔If the Qualified
Technician does encounter an "Interfering Substance" status message, the Qualified
What does this Status Message mean: Insufficient Sample - ✔✔The Sample acceptance
criteria has not been met What is the definition of the Intox EC/IR II? - ✔✔The Intox EC/IR II
is an approved instrument which analyzes a sample of deep lung air and reports the results
in milligrams of alcohol in 100 millilitres of blood. What is Henry's Law? - ✔✔At a given
temperature the saturated vapour above a solution contains a concentration of solute
proportional to the concentration of the solute in the solution. What is Henry's Law applied
to breath testing? - ✔✔At 34°C the deep lung air contains a concentration of alcohol
proportional to the concentration of the alcohol in the blood. What is the Breath Blood
ratio? - ✔✔At 34°C, 2100 parts of deep lung air contain the same amount of alcohol as 1
part of blood. What are the factors that can affect a breath test result? (3) - ✔✔1. Breath
Temperature 2. Mouth Alcohol 3. Shallow Blow What is the margin of acceptability? -
✔✔The margin of acceptability for the Intox EC/IR II is an alcohol standard result within
10% of the target value of the alcohol standard. (100mg% is 90 - 110) What are the two
distinct analytical techniques to achieve a blood alcohol concentration (BAC) result? (2) -
✔✔1. Infrared Analysis (IR) 2. Electrochemical (EC) sensor (fuelcell) What is the Infrared
analysis? (2) - ✔✔1. Monitors the quality of the breath sample and is used to detect
residual alcohol in the mouth. 2 . The flow sensor continuously monitors the breath sample
to determine the exact moment to introduce the sample to the fuel cell component of the
instrument for final analyses What is the Electrochemical (EC) sensor (fuelcell)? (2) - ✔✔1.
It is specific to alcohol and facilitates a chemical reaction that results in an electrical
current 2. The current is then used to calculate the blood alcohol content present in each
sample analyzed. What is the measurement range of the instrument? - ✔✔0 to
550milligrams of ethanol in 100millilitres of blood What does the front display show? (4) -
✔✔1. Location 2. Instrument serial number 3. Date and time 4. Any warning conditions that
may affect the operation of the instrument How does the pressure sensor tubing work? (2) -
✔✔1. Monitors the flow rate and volume of the subject's breath used. 2. Monitors ambient
atmospheric pressure to determine the correction factor for dry gas standards. This
reading is used to determine the target value for the dry gas alcohol standard at the time of
the test (the target value varies according to atmospheric pressure). How does the
instrument protect against radio frequency interference (RFI)? (2) - ✔✔1. This cage, which
includes the design and sealing of the metal body of the instrument, is found over the
sensitive components on the motherboard 2. Faraday cage is an enclosed conducting
shell that shields its interior from strong electric fields and electromagnetic waves. What
are the sample acceptance criteria for the Intox EC/IR II? (3) - ✔✔1. minimum flow rate of
, 12 L/min (0.2 L/sec), and 2. minimum volume of 1.5 L, and 3. a 5% drop in flow rate after
minimum volume is reached. What is the criteria of a proper breath test (PBT)? (3) - ✔✔1.
Two suitable breath samples which agree within 20 mg% of each other. 2. Two
DIAGNOSTIC TESTS that have PASSED. 3. Two ALCOHOL STANDARD tests within 10% of
the target value. What is the Alcohol Standard for a wet bath simulator solution? -
✔✔100mg% (plus or minus 10) What is the Alcohol Standard for a dry gas simulator
solution? - ✔✔It varies based on the atmospheric pressure of where the instrument is
located. (Measured by the pressure-sensing tubing) Winnipeg is usually 79-80mg% (plus or
minus 10) How do print your last test results? - ✔✔Letter P How do you do a quick test? -
✔✔F2 How do change the gender from male to female? - ✔✔Spacebar or letters M/F How
do you conduct a proper observation period? - ✔✔1. Search the subject to ensure they do
not have products containing alcohol on their person. Check the mouth of the subject and
ensure it contains no foreign objects such as tobacco, gum, food or other unusual objects
as they may retain alcohol or present a choking hazard. Remove any objects if present. It is
not required that piercings and dentures be removed. 2. Place the subject in the observer's
field of view and within close proximity where clues of consumption, burps, or vomiting
can be detected. 3. Observe the subject for at least 15 continuous minutes prior to each
breath test, ensuring the subject does not drink any alcoholic beverages or other liquids,
and does not place anything in their mouth, burp or vomit. What are interfering
substances? - ✔✔Typically when we refer to alcohol, we are referring to ethyl alcohol
(ethanol), but there are other types of alcohols that may be present on a subject's breath.
Methyl alcohol (methanol) and isopropyl alcohol (isopropanol) are two commonly
available substances that may be consumed for their intoxicating effects. Methanol can be
found in windshielf was Isopropanol is most commonly sold as rubbing alcohol and can be
found in some hand sanitizers, perfume, cologne and cosmetics Methanol and
isopropanol are capable of producing a reaction on a fuel cell. What happens if
isopropanol or methanol goes into the instrument? - ✔✔The Intox EC/IR II has a
mechanism to detect and distinguish these different substances by monitoring the
reaction profile in the fuel cell. When ethyl alcohol is introduced into the fuel cell, the
reaction profile is predictable and consistent. When other volatile substances such as
methanol or isopropanol are introduced into the fuel cell, the reaction profile of the fuel
cell is different. Can other things get a reaction from the fuel cell? - ✔✔While rare, some
individuals will consume substances other than ethyl alcohol, either knowingly or
unknowingly. In order for a substance to increase a breath test result, it must be volatile,
non-toxic, present on the breath in sufficient quantities and produce a reaction on the fuel
cell. What do you do if you get a "interfering substance message"? - ✔✔If the Qualified
Technician does encounter an "Interfering Substance" status message, the Qualified
