Podcast
Questions and Answers
Which of the following statements about sedatives is true?
Which of the following statements about sedatives is true?
- Sedatives have analgesic effects.
- Sedatives produce general anesthesia.
- Sedatives reduce anxiety and have no effect on motor or mental functions. (correct)
- Sedatives induce drowsiness and promote sleep.
Which of the following is a pharmacologic action of barbiturates in the central nervous system (CNS)?
Which of the following is a pharmacologic action of barbiturates in the central nervous system (CNS)?
- Barbiturates have analgesic effects.
- Barbiturates relieve anxiety at small doses. (correct)
- Barbiturates cause motor incoordination.
- Barbiturates produce general anesthesia.
Which of the following is NOT a pharmacologic action of barbiturates?
Which of the following is NOT a pharmacologic action of barbiturates?
- Have analgesic effects. (correct)
- Produce general anesthesia.
- Relieve anxiety at small doses.
- Induce drowsiness and promote sleep.
Which of the following is a pharmacologic action of ultra short-acting barbiturates?
Which of the following is a pharmacologic action of ultra short-acting barbiturates?
Which of the following is a characteristic of hypnotics?
Which of the following is a characteristic of hypnotics?
True or false: Sedatives reduce anxiety and have no effect on motor or mental functions.
True or false: Sedatives reduce anxiety and have no effect on motor or mental functions.
True or false: Hypnotics produce drowsiness and promote sleep.
True or false: Hypnotics produce drowsiness and promote sleep.
True or false: Barbiturates can cause sedation, hypnosis, and general anesthesia.
True or false: Barbiturates can cause sedation, hypnosis, and general anesthesia.
True or false: Barbiturates have analgesic effects.
True or false: Barbiturates have analgesic effects.
True or false: Ultra short-acting barbiturates can induce general anesthesia.
True or false: Ultra short-acting barbiturates can induce general anesthesia.
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Study Notes
Sedatives
- Sedatives reduce anxiety and can affect motor and mental functions, contrary to the statement suggesting they have no effect.
- They are often used in medical settings for their calming effects.
Barbiturates Pharmacologic Actions
- Barbiturates depress CNS activity, leading to sedation, hypnosis, and potentially general anesthesia.
- Not all barbiturates have analgesic effects; this statement is false as barbiturates do not provide pain relief.
- Ultra short-acting barbiturates are particularly effective in inducing general anesthesia due to their rapid onset.
Hypnotics
- Hypnotics are primarily designed to produce drowsiness and promote sleep, acting as sleep aids.
- They may share similarities with sedatives but specifically target sleep induction.
True/False Statements
- True: Hypnotics promote sleep and induce drowsiness.
- True: Barbiturates can lead to sedation, hypnosis, and general anesthesia.
- False: Barbiturates do not possess analgesic properties.
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