NEW
Font size
WorksheetsOpioid Analgesics Quiz
Total questions: 19
Worksheet time: 10mins
Opioid analgesics primarily act on
Histamine receptors
GABA receptors
Opioid receptors
Dopamine receptors
Morphine is classified as
NSAID
Pure opioid agonist
Partial agonist antagonist
Opioid antagonist
Most important receptor mediating analgesia of morphine is
κ receptor
δ receptor
μ receptor
NMDA receptor
Morphine produces analgesia by
Blocking COX enzymes
Increasing pain threshold and altering pain perception
Blocking sodium channels
Stimulating NMDA receptors
Morphine causes respiratory depression by acting on
Peripheral chemoreceptors
Medullary respiratory center
Cortex only
Bronchial smooth muscle
Morphine causes miosis by stimulation of
Sympathetic fibers
Parasympathetic Edinger–Westphal nucleus
Nicotinic receptors
Dopamine receptors
Morphine causes constipation due to
Increased GI motility
Decreased GI motility and increased sphincter tone
Increased bile flow
Pancreatic stimulation
Common adverse effect of morphine includes
Diarrhea
Hypertension
Nausea and vomiting
Hyperglycemia
Morphine can cause hypotension mainly due to
Direct vasoconstriction
Histamine release
Increased cardiac output
Beta stimulation
Morphine is used in myocardial infarction because it
Increases heart rate
Increases myocardial oxygen demand
Relieves pain and reduces anxiety with venodilation
Acts as antiarrhythmic
Triad of opioid poisoning includes
Mydriasis tachycardia fever
Coma miosis respiratory depression
Seizures hypertension hyperthermia
Diarrhea salivation lacrimation
Drug of choice for morphine poisoning is
Atropine
Naloxone
Flumazenil
Physostigmine
Naloxone is a
Partial agonist
μ receptor agonist
Opioid antagonist
NSAID
Management of opioid poisoning includes all EXCEPT
Airway support
Naloxone administration
Gastric lavage if appropriate
IV beta blockers
Thiopentone sodium is classified as
Benzodiazepine
Barbiturate used for induction agent
Opioid analgesic
NMDA antagonist
Thiopentone produces anesthesia by
Enhancing GABA-A action
Blocking NMDA receptors
Blocking Na+ channels
Inhibiting dopamine release
Thiopentone is contraindicated in
Status epilepticus
Porphyria
Short procedures
Induction of anesthesia
Major adverse effect of thiopentone is
Bronchodilation
Respiratory depression and hypotension
Analgesia
Hypertension
Ultra-short acting barbiturate is
Phenobarbitone
Pentobarbitone
Thiopentone
Methadone
