2 types of poisonous substances are cyanide fumes and carbon monoxide gas. Explain how both of these poisons cause death and how they interact with the body.
A breath-test operator must take additional precautions to ensure that the breath-test result accurately reflects the actual BAC of the subject. One major obstacle to avoid is to avoid measuring mouth alcohol.
a) What is mouth alcohol and how does it affect the accuracy of a breath-test?
b) Name 3 potential sources of mouth alcohol.
Match the following tests with their respective poisons.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Prussian Blue Test | arrow_right_alt | arsenic |
X-Ray Film Test | arrow_right_alt | cyanide |
Marsh Test | arrow_right_alt | radium |
Use the table to order the given substances from least toxic to most toxic.

Select all of the following that are sources of lead in our everyday environment:
Alcohol that is not oxidized is expelled unchanged in what bodily excretions? (Select 3).
The following are descriptions of 4 individuals who have been drinking. Rank them from highest to lowest blood alcohol concentration:
a. John (male), who weighs 200 pounds and has consumed four 8-ounce drinks on a full stomach
b. Frank (male) who weighs 170 pounds and has consumed six 8-ounce drinks on an empty stomach
c. Gary (male), who weighs 200 pounds and has consumed six 8-ounce drinks on a full stomach
d. Sarah (female), who weighs 170 pounds and has consumed six 8-ounce drinks on an empty stomach
