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Opoids
OneLiners
Question | Answer |
---|---|
Inhibit synaptic activity of primary afferents and spinal cord pain transmission neurons | Ascending pathways |
Activation of these receptors close Ca2+ ion channels to inhibit neurotransmitter release | Presynaptic mu, delta, and kappa receptors |
Activation of these receptors open K+ ion channels to cause membrane hyperpolarization | Postsynaptic Mu receptors |
Tolerance to all effects of opioid agonists can develop except | Miosis and constipation |
All opioids except this agent (which has a muscarinic blocking action) cause pupillary constriction | Meperidine |
SE of these drugs include dependence, withdrawal syndrome, sedation, euphoria, respiratory depression nausea and vomiting, constipation, biliary spasm, increased ureteral and bladder tone, and reduction in uterine tone | Opioid Analgesics |
Strong opioid agonists | Morphine, methadone, meperidine, and fentanyl |
Opioids used in anesthesia | Morphine and fentanyl |
Opioid used in the management of withdrawal states | Methadone |
Opioid available trans-dermally | Fentanyl |
Opioid that can be given PO, by epidural, and IV, which helps to relieve the dyspnea of pulmonary edema | Morphine |
Use of this opioid with MAOI can lead to hyperpyrexic coma, and with SSRI's can lead to serotonin syndrome | Meperidine |
Moderate opioid agonists | Codeine, hydrocodone, and oxycodone |
Weak opioid agonist, poor analgesic, its overdose can cause severe toxicity including respiratory depression, circulatory collapse, pulmonary edema, and seizures | Propoxyphene |
Partial opioid agonist, considered a strong analgesic, has a long duration of action and is resistant to naloxone reversal | Buprenorphine |
Opioid antagonist that is given IV and had short DOA | Naloxone |
Opioid antagonist that is given orally in alcohol dependency programs | Naltrexone |
These agents are used as antitussive | Dextromethorphan, Codeine |
These agents are used as antidiarrheal | Diphenoxylate, Loperamide |
Inhalant anesthetics | NO, chloroform, and diethyl ether |
Toxic to the liver, kidney, lungs, bone marrow, peripheral nerves, and cause brain damage in animals, sudden death has occurred following inhalation | Fluorocarbons and Industrial solvents |
Cause dizziness, tachycardia, hypotension, and flushing | Organic nitrites |
Causes acne, premature closure of epiphyses, masculinization in females, hepatic dysfunction, MI, and increases in libido and aggression | Steroids |
Readily detected markers that may assist in diagnosis of the cause of a drug overdose include | Changes in heart rate, blood pressure, respiration, body temperature, sweating, bowel signs, and pupillary responses |
Most commonly abused in health care professionals | Heroin, morphine, oxycodone, meperidine and fentanyl |
This route is associated with rapid tolerance and psychologic dependence | IV administration |
Leads to respiratory depression progressing to coma and death | Overdose of opioids |
Lacrimation, rhinorrhea, yawning, sweating, weakness, gooseflesh, nausea, and vomiting, tremor, muscle jerks, and hyperpnea are signs of this syndrome | Abstinence syndrome |
Treatment for opioid addiction | Methadone, followed by slow dose reduction |
This agent may cause more severe, rapid and intense symptoms to a recovering addict | Naloxone |
Sedative-Hypnotics action | Reduce inhibition, suppress anxiety, and produce relaxation |
Additive effects when Sedative-Hypnotics used in combination with these agents | CNS depressants |
Common mechanism by which overdose result in death | Depression of medullary and cardiovascular centers |
"Date rape drug" | Flunitrazepam (rohypnol) |
The most important sign of withdrawal syndrome | Excessive CNS stimulation (seizures) |
Treatment of withdrawal syndrome involves | Long-acting sedative-hypnotic or a gradual reduction of dose, clonidine or propranolol |
These agents are CNS depressants | Ethanol, Barbiturates, and Benzodiazepines |
Withdrawal from this drug causes lethargy, irritability, and headache | Caffeine |
W/D from this drug causes anxiety and mental discomfort | Nicotine |
Treatments available for nicotine addiction | Patches, gum, nasal spray, psychotherapy, and bupropion |
Chronic high dose abuse of nicotine leads to | Psychotic state, overdose causes agitation, restlessness, tachycardia, hyperthermia, hyperreflexia, and seizures |
Tolerance is marked and abstinence syndrome occurs | Amphetamines |
Amphetamine agents | Dextroamphetamines and methamphetamine |
These agents are congeners of Amphetamine | DOM, STP, MDA, and MDMA "ecstasy" |
Overdoses of this agent with powerful vasoconstrictive action may result in fatalities from arrhythmias, seizures, respiratory depression, or severe HTN (MI and stroke) | Cocaine "super-speed" |
Most dangerous of the currently popular hallucinogenic drugs, OD leads to nystagmus, marked hypertension, and seizures, presence of both horizontal and vertical nystagmus is pathognomonic | PCP |
Removal of PCP may be aided | Urinary acidification and activated charcoal or continual nasogastric suction |
THC is active ingredient, SE's include impairment of judgment,andreflexes,decreases in blood pressure and psychomotor performance occur | Marijuana |