« previous next »

Author Question: Briefly describe how a fuel cell detector measures blood-alcohol concentration. What will be an ... (Read 256 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Aug 17, 2018
Briefly describe how a fuel cell detector measures blood-alcohol concentration.
 
  What will be an ideal response?

Question 2

What is mouth alcohol and how does it affect the accuracy of a breath test? Name three potential sources of mouth alcohol.
 
  What will be an ideal response?
Criminalistics: An Introduction to Forensic Science ¦ Saferstein ¦ 12th Edition
Buy Test-Bank


macagnavarro

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 17, 2018
Answer to Question 1

A fuel cell detector converts alcohol in alveolar breath into acetic acid, generating an electrical current that is proportional to the quantity of alcohol present in the breath. The stronger the current, the greater the concentration of alcohol in the subject's breath.

Answer to Question 2

Mouth alcohol is alcohol present in a breath-test subject's mouth. The presence of mouth alcohol can cause the alcohol concentration detected in exhaled breath to be higher than the actual concentration in the blood. Potential sources of mouth alcohol include regurgitation, belching, recent intake of an alcoholic beverage, and recent gargling of an alcohol-containing mouthwash.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Examples of cell-to-cell communication based on the distance between cells Examples of cell-to-cell communication based on the distance between cells
BLOOD CELLS BLOOD CELLS
Steps in the humoral and cell-mediated immune responses. Steps in the humoral and cell-mediated immune responses.
cell cell
A central port fuel-injection system. A central port fuel-injection system.
Top Eleven Countries in Year 2009 According to Three Different Measures Top Eleven Countries in Year 2009 According to Three Different Measures
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library