APIC Flashcards
What are the different types of pain?
Nociceptive (somatic or visceral)
Neuropathic
Psychogenic
What is allodynia?
The sensation of pain in response to a non-noxious stimulus (e.g. light touch)
Which opioid analgesics are suitable for patients with poor renal function?
Fentanyl (no active metabolites)
Oxycodone (clinically insignificant active metabolites)
Why is morphine not given in severe renal dysfunction?
Morphine has an active metabolite that is renally excreted
What is the difference between opiates and opioids?
Opiate = drugs derived from morphine or codeine Opioid = natural or synthetic drug with morphine-like action`
List 5 adverse effects of opioids.
Respiratory and cough depression Sedation Nausea & vomiting Constipation Delayed gastric emptying Urinary retention Mioisis Myoclonus, rigidity and seizures Euphoria Bradycardia and vasodilation
What is the dosage of opioids based on?
The patient’s age and tolerance
What is the mechanism of analgesia with tramadol?
40% due to opioid agonism
60% due to SNRI effect
What is the theoretical risk arising from the prescription of tramadol and antidepressants?
Serotonin Syndome (tramadol has SNRI effect)
Name two opioid antagonists.
Naloxone
Naltrexone
What is suboxone?
Tablet containing buprenorphine (opioid agonist) + naloxone (opioid antagnoist)
Naloxone is only effective when given IV, thus it theoretically deters drug seekers from crushing and injection tablets