Question and answer
What is the difference between a screening test and a confirmation test?
A screening test (usually a POC test) is designed to be qualitative – that is the result is given as positive or negative. ....A confirmation test (lab test) is usually performed using the GC/MS or LC/MS [ techniques. ]
Expert answered|innersource|Points 7235|
Question
Asked 5/1/2013 10:03:55 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
4.How will completing these goals help you be a step closer to accomplishing your long-term goal?
Weegy: what goals are you referring to? (More)
Question
Expert Answered
Asked 4/24/2013 10:26:14 AM
0 Answers/Comments
Please pick two types of drugs and explain how they may affect individuals
Weegy: LSD, PCP, and Ecstasy are examples of hallucinogens, and these drugs have the ability to affect a person's perceptions dramatically. Information travels through the brain at rapid speeds and is carried by chemical messengers called neurotransmitters. [ Hallucinogens interfere with the function of neurotransmitters, which interferes with the speed at which messages travel. Hallucinogens also alter the function of the nerve cells in the brain by destroying the brain's nerve fibers. ] (More)
Question
Expert Answered
Asked 4/29/2013 9:25:43 AM
0 Answers/Comments
Please pick two types of drugs and explain how they may affect individuals
Weegy: Stimulants Stimulants are drugs that stimulate the Central Nervous System. These substances tend to increase alertness and physical activity. They include Amphetamines, Cocaine, Crack and some inhalants like Amyl or Butyl Nitrites. [ Caffeine (present in tea, coffee and many soft drinks) is also a mild stimulant drug. Which stimulants are abused? The most widely abused stimulants are cocaine, crack (a pure form of cocaine) and amphetamines. Cocaine has limited commercial use and its sale and possession are strictly controlled. Nevertheless there is a huge worldwide illicit network for the manufacture and supply of this drug in its various forms. Doctors sometimes prescribe pharmaceutical amphetamines and their availability makes them candidates for misuse but powdered amphetamine, manufactured in illicit laboratories, is the most common type of amphetamine to be abused in the UK. Inhalants such as amyl and butyl nitrates are legal at present. Because of their very short action time - the effect lasts approximately 1-2 minutes - they are usually only abused in certain settings, such as parties etc. What do they look like? Stimulants appear in many forms. Pharmaceutical amphetamines are usually produced as pills or capsules, whereas street amphetamines come in the form of a fine, white dull powder. Inhalants can be prescribed or purchased in small glass vials which are crushed to release the vaporising fluid inside, or in small bottles. Cocaine is a relatively fine, white crystalline powder. Crack is seen as cloudy white crystals that are irregular and fairly large (pea-sized). What are the effects of stimulants? Different stimulants act on the body in different ways. For example, nitrate inhalants cause the blood vessels to dilate (widen); cocaine and crack interfere with normal levels of the neurotransmitter serotin; amphetamines cause the release of adrenalin. Nevertheless, broadly speaking all these stimulants have a similar effect in that they ... (More)
Question
Expert Answered
Asked 4/29/2013 9:50:08 AM
0 Answers/Comments
Please pick two types of drugs and explain how they may affect individuals
Weegy: Alcohol affects a human being by impairing their judgement and makign them sick. Marijuana does the same thing but it affects the chemical receptors in the brain. (More)
Question
Expert Answered
Asked 4/29/2013 10:23:16 AM
0 Answers/Comments
If you saw cannabis and methamphetamine at a crime scene, how would you properly collect them?
Weegy: Gloves should be worn and the evidence placed into respectable evidence bags or material container. (More)
Question
Expert Answered
Asked 4/29/2013 10:38:30 AM
0 Answers/Comments
18,070,907 questions answered
Popular Conversations
What is the middle term of the product of (5a - 7)(2a - 1)?
Weegy: (5a - 7)(2a - 1) = 10a^2 - 5a - 14a + 7; = 10a^2 - 19a + 9; The middle term is: -19a User: Factor 5x 2 - 7x ...
10/31/2014 1:07:39 PM| 4 Answers
Which answer correctly identifies the underlined words (reading)in ...
Weegy: Can you believe that I won the staring contest? The word staring is a PARTICIPIAL.
10/31/2014 3:29:41 PM| 4 Answers
What is the equation of the line that has a slope of –2 and a ...
Weegy: If the slope of a straight line is 0 and the y-intercept is 2, the equation of the line is y = -2 User: ...
10/31/2014 12:48:06 PM| 3 Answers
The goal of Hitler’s unsuccessful “Beer Hall Putsch” was ...
Weegy: The goal of Hitler s unsuccessful Beer Hall Putsch? was to b. march to Berlin and bring the Weimer Republic ...
10/31/2014 6:57:26 AM| 2 Answers
The Tiananmen Square Massacre was a response to a. Taiwan ...
Weegy: Deng Xiaoping was Mao's: Succesor - - User: Which of the following did not occur after the demonstrations ...
10/31/2014 10:40:27 AM| 2 Answers
Which of the following statements best describes a harijan? a. A ...
Weegy: Which of the following statements best describes a harijan? The answer is C. A member of the untouchable caste. ...
10/31/2014 10:52:10 AM| 2 Answers
Letters of the alphabet used to represent unknown quantities in ...
Weegy: Letters of the alphabet used to represent unknown quantities in equations are called variables. User: An ...
10/31/2014 11:12:47 AM| 2 Answers
Factor p^2 + 18p + 32.
Weegy: p^2 + 18p + 32, the factors are (p + 2)(p + 16) User: (-a + 3)(a + 4) Weegy: (-a + 3)(a + 4) = -a^2 -4a + ...
10/31/2014 11:40:43 AM| 2 Answers
Weegy Stuff
S
Points 13 [Total 534]| Ratings 0| Comments 13| Invitations 0|Offline
S
L
Points 11 [Total 2298]| Ratings 0| Comments 11| Invitations 0|Offline
S
Points 8 [Total 777]| Ratings 0| Comments 8| Invitations 0|Online
S
L
1
L
P
C
1
P
C
1
L
Points 5 [Total 11718]| Ratings 0| Comments 5| Invitations 0|Offline
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.