This specific location in the spinal cord is where all 3 opioid receptors are present in high concentrations
Dorsal horn
This medication is most commonly administered as premedication or IV sedation
Midazolam
While not a true reversal agent, this medication stimulated hypoxic drive via activation of chemoreceptors in the carotid bodies
Doxapram
This receptor is associated with psychomimetic effects including dysphoria, confusion, lack of euphoria, and depression
Kappa
This novel benzodiazepine has the quickest onset and fastest recovery
Remimazolam
Cephalad movement of opioids in the CSF can be facilitated by what two normal actions
Coughing and straining
This unique aspect of midazolam reduces pain on injection
1 mg
This medication is backed by evidence that it can aid in reversing opioid-induced hyperalgesia
Suboxone
Rank these 3 meds in amnestic potency
1. Lorazepam
2. Midazolam
3. Diazepam
Due to thickness of the dura, epidural doses are likely to be this much greater than spinal doses
5-10 times the dose
The inhibition of the reuptake of this molecule by midazolam results in a cardioprotective effect
Adenosine
This receptor type is more antagonized than its counterparts by Narcan
Mu receptors
This agonist-antagonist is the best suited for CV patients due it's lack of cardiovascular effects
Rank the hepatic clearance rates for Midazolam, Diazepam, and Lorazepam
Bonus points for how much difference is
Midazolam > Lorazepam > Diazepam
Midazolam is 5x faster than lorazepam and 10x faster than diazepam
The addition of this neurotransmitter allows for decreased absorption of opioids, enhancing length of analgesia specifically for morphine
Epinephrine
This population experiences up to double the elimination half time of midazolam
Elderly
This side effect of narcan administration can be cause by increase in pressure and permeability of pulmonary capillaries
Patients taking suboxone chronically before surgery may require this adjustment by the anesthesia provider
Higher dose of opioid needed to achieve adequate pain control
Differentiate these medications and their analgesic potency in respect to morphine:
Butorphanol (Stadol)
Buprenorphine (Buprenex)
Nalbuphine (Nubain)
Buprenorphine more potent
Nalbuphine equipotent
3%
Differentiate between GABA and glycine the effects of benzodiazepines:
Sedative, anxiolysis, muscle relaxation, anti-convulsant
GABA: anti-convulsant, sedative
Glycine: anxiolysis, muscle relaxation
Caution should be taken when administering flumazenil for consistent benzodiazepine users due to this reversal side effect
Withdrawal seizures
This agonist-antagonist is unique in its lack of antagonism by morphine
Buprenorphine (Buprenex)
Rank these opioids in speed of diffusion into the CSF
Sufentanil, Morphine, Fentanyl
Bonus points for stating how long it takes to get to peak concentration in CSF
1. Sufentanil - 6 mins
2. Fentanyl - 20 mins
3. Morphine - 1 to 4 hours