Chapter 4 quiz part a

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Which of the following statements best describes the effects that depressants have on the central nervous system?

Depresssants decrease rate of breathing and heart rate

Addiction is a prerequisite for an overdose

False

Addiction to an withdrawal from benzodiazepines is not as severe or as dangerous as opioid addiction

False

An individual who is under the influence of heroin will have dilated pupils

False

Gamma hydroxybutyrate (GHB) is used by sexual predators to increase sexual desires in their victims

False

Most sedative-hypnotics are from natural sources.

False

Opioids, such as hydrocodone (Vicodin), usually suppress nausea and vomiting

False

The number of people in the United States who overdose on heroin is greater than the number who overdose on any other type of opioid, including hydrocodone,oxycodone, and methadone

False

The primary illegitimate source of obtaining prescription drugs, such as OxyContin, Vicodin, and Xanax, is over the internet

False

Z-hypnotics like Sonata,Ambien,and Imovane have different actions and affect different receptor sites than the benzodiazepine sedatives

False

Of 1,033 new drugs approved by the FDA between 1989 and 2000, whar percentage showed no significant clinics improvement over older and cheaper drugs already in use ?

More than 50%

Which of the following drugs is an opioid antagonist that may be used to prevent an opioid overdose ?

Naloxone

Benzodiazepines sedative -hypnotics gerneally have a higher margin of overdose safety than other drugs in this depressant category

True

Drug tolerance develops in part due to the increased efficacy of the liver in processing a drug that is used regularly

True

Opiates block the release of substance P, which is the name of the neurotransmitter that transmits pain messages from nerve cell to nerve cell

True

Treatment for addiction to opiates requires physical detoxification and psychological correction

True

Which of the following correctly lists the three major classes of depressants?

Alcohol,opiates,sedative-hypnotics

Needing a dose of a drug just to feel "normal" is a sign of tolerance

False

Opiate addiction was first documented about 100 years ago

False

For how long can post-acute withdrawal symptoms following detoxification and abstinence from opioid of other drug addictions persist

For three to six months or longer after detoxification


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