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opioids
opioids
92
Medical
Professional
02/24/2009

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Term
Mu
Definition
Receptor that causes antidiuresis and decreased electrolyte excretion
Term
Kappa
Definition
Receptor that causes diuresis and little change in electrolyte excretion.
Term
Fentanyl, Sufentanil, Alfentanil and probably Remifentanil
Definition
Most likely preserve or minimally alter renal function in humans (4 drugs).
Term
True
Definition
T/F A patient is considered to be a "full stomach" if NPO for 10 hours but has been on a Fentanyl gtt.
Term
Naloxone, Metoclopramide
Definition
To reverse opioid-induced gastric delays, you can give _______ but _______ is preferred pre-operatively.
Term
Naloxone, Glucagon
Definition
To reverse opioid-induced biliary duct pressure and sphincter of Oddi tone, you can give _____ but ______ is preferred.
Term
False
Definition
T/F Intraoperative opioids has no effect on post-op N/V
Term
Chemoreceptor trigger zone, area postrema, medulla, delta
Definition
N/V from opioids occurse from stimulation in the _________ in the _________ of the ________. (Mu/kappa/delta) receptors are the most likely culprits.
Term
Alftentanil
Definition
A patient has a H/O increased post-op N/V, which of the following fentanyls might be the best choice intra-op: Alfentanil, Fentanil, Sufentanil
Term
Morphine, Meperidine, Fentanyl
Definition
Adverse neonatal effects can occur after either ______ or _______ administration to mothers. _________ has minimal effect on the neonate.
Term
Decrease
Definition
Opioids (increase/decrease) the immune response?
Term
Alfentanil, Naloxone, Nalbuphine
Definition
In a wheal study compared with saline, which 3 drugs showed no flare?
Term
Meperidine
Definition
This drug has varying degrees of pain relief and might not always be effective for severe pain.
Term
Fentanyl: 1-3 mcg/kg
Alfentanil: 10-20 mcg/kg
Sufentanil: 0.1-0.3 mcg/kg
Definition
Analgesic dose:
Fentanyl
Alfentanil
Sufentanil
Term
More
Definition
If using an opioid as a single agent anesthetic, you expect to see a (more/less) decrease in BP.
Term
Respirations
Definition
One of the safest and most effective ways of titrating to a patient's pain immediately post-op.
Term
Give another dose of opioid
Definition
In the OR, you notice the pt's HR starts to increase, what class of drug would you give?
Term
Increase the gas
Definition
In the OR under general anesthesia, you notice your pt's BP is creeping up, which drug would you consider increasing?
Term
Will not
Definition
Remifentanil (will/will not) produce residual post op anesthesia with minimal side effects.
Term
Alfentanil and Remifentanil
Definition
Synthetic opioids used in drips to titrate quickly.
Term
Alfentanil
Definition
Has greater decrease in HR and BP than Fentanyl
Term
Sufentanil
Definition
Opioid that produces some of the most stable VS if adequately hydrated.
Term
Fentanyl
Definition
Opioid that frequently requires reversal of respiratory depression at the end of a case.
Term
Remifentanil
Definition
Maximum respiratory effort but quickest offset of analgesia.
Term
Hypotension--Histamine release
Tachycardia--Resembles atropine
Urticaria--Histamine release
Definition
Meperidine causes hypotension, tachycardia and urticaria. Why?
Term
50 mcg/ml
Definition
Packaged concentration of Fentanyl
Term
2-6 mcg/kg
Definition
Induction dose of Fentanyl
Term
5-6 minutes
Definition
Delay of onset for Fentanyl
Term
1-2 minutes
Definition
Delay of onset for Alfentanil and Remifentanil
Term
Titrate the opioid in anticipation of pain (give before the pain stimulus) throughout the surgery.
Definition
Doing this will often result in a stable hemodynamic course, lead to rapid awakening and adequately control pain for the patient.
Term
Most likely
Definition
Repeated large doses or high infusion rates of Fentanyl will be (most/least) likely to result in depression of spontaneous ventilation.
Term
1-2 mcg/kg
Definition
Low dose Fentanyl for the entire case
Term
2-20 mcg/kg
Definition
Moderate dose of Fentanyl for an entire case
Term
20-50-150 mcg/kg
Definition
High dose of Fentanyl for the entire case. You expect these pts to to to ICU vented.
Term
Alfentanil
Definition
Drug of choice to provide IMMEDIATE pain relief
Term
500 mcg/mL
Definition
Packaged concentration of Alfentanil.
Term
25-50 mcg/kg
Definition
Induction dose of Alfentanil
Term
No, the induction dose of Alfentanil is usually sufficient to blunt the hemodynamic response to laryngoscopy and intubation.
Definition
If you give an induction dose of Alfentanil, would you need to supplement it with another opioid to blunt the hemodynamic response to laryngoscopy and intubation?
Term
Decrease, 15-30 mins
Definition
Your pt is on an Alfentanil gtt in the OR, you should (turn it off/decrease) the gtt how soon before the end of the case?
Term
1-2 mcg/kg/hr of surgery
Definition
Induction dose of Sufentanil
Term
More
Definition
While Sufentanil produces "railroad track VS", it has the ability to produce (more/less) vasodilation than some of the other fentanyls.
Term
You must reconstitute and dilute it.
Definition
What is one of the drawbacks to choosing to use a vial of Remifentanil?
Term
1 mg/kg slowly over 60-90 seconds
Definition
Induction dose of Remifentanil.
Term
Remifentanil, ester linkage
Definition
Allows the most predictable and rapid trouble-free emergence from anesthesia due to its _________.
Term
5-15 minutes
Definition
Offset time or DOA of Remifentanil.
Term
Do not
Definition
You (do/do not) want to use Remifentanil in a high-pain surgery like a CABG?
Term
Droperidol and opioid, Cannot
Definition
Neuroleptanalgesia-Anesthesia drugs involved. They (can/cannot) be combined with patients taking MAOIs?
Term
Sedative-hypnotic, muscle relaxant, opioid
Definition
TIVA consists of what 3 classes of drugs?
Term
Patient condition and surgical stimuli
Definition
Maintenance infusions of TIVA vary according to _________ and _________.
Term
Alfentanil, Propofol, Midazolam (has muscle relaxant properties)
Definition
_________ + __________ + __________ have profound synergism for TIVA.
Term
Terminated, 5-10 mins
Definition
Propofol should be (decreased/terminated) _________ before the case ends.
Term
High incidence of recall (because opioids do not make patients unconscious--they are still processing thoughts)
Definition
What is the main problem with using opioids as a sole anesthetic?
Term
Added drug costs, decreased, lack
Definition
Other disadvantages to using opioids as a sole anesthetic include __________, ________ ability to "fast track", and a _________ of evidence in favor for such a technique.
Term
Premature infants for PDA surgery.
Definition
However, this specific population frequently uses Fentanyl as the sole anesthetic for surgery.
Term
Sufentanil
Definition
Drug of choice for adult heart surgery.
Term
Muscle rigidity and upper airway closure
Definition
Two of the downsides to using high dose opioids such as Sufentanil in surgery is ____________ and __________.
Term
Paralyze and intubate
Definition
You've just given an induction dose of an opioid and are now unable to bag the patient, what is your next step?
Term
30 mins before surgery
Definition
When do you give a Fentanyl lollipop to a child before surgery?
Term
Meperidine
Definition
Gold standard for shivering
Term
Tramadol (opioid), Droperidol
Definition
Besides Meperidine, what other two drugs can be used for shivering?
Term
M6G
Definition
What is the active metabolite of morphine?
Term
Pentazocine, Butorphanol, Buprenorphine, Nalbuphine
Definition
Name 3 opioid agonist-antagonists
Term
Dysphoria, N/V
Definition
Common side effects of Pentazocine
Term
Kappa, ceiling
Definition
Pentazocine agonizes ______ receptor, and has a _______ effect to both analgesia and respiratory depression.
Term
Butorphanol (Stadol)
Definition
Agonizes kappa receptors and is either antagonistic or partially agonistic to Mu receptors.
Term
Nubain
Definition
A good opioid to use during conscious sedation due to its limited respiratory depressant effects.
Term
Nalbuphine
Definition
Antagonizes mu receptors, agonizes kappa and delta receptors.
Term
10-20 mg IV
Definition
Dose of Nubain
Term
Mu mostly, some kappa, some delta
Definition
Narcan works on the following receptors:
Term
Opioid induced N/V, Pruritis, urinary retention, skeletal muscle rigidity and biliary spasm
Definition
Narcan reverses these 5 side effects associated with opioids.
Term
Half life: 1-2 mins
DOA: 30-60 mins
Definition
Narcan half-life:
Narcan DOA:
Term
0.4-0.8 mg IV or IM; dilute and give in divided doses
Definition
Dosing for Narcan.
Term
Increase, increase, longer, pulmonary edema
Definition
Giving Narcan can have several side effects. (increase/decrease) HR, (increase/decrease) BP, "renarcotization" with (longer/shorter) acting opioids, and probably the most severe side effect ___________.
Term
If need to give more morphine after reversal with Narcan, pt may need about half as much morphine to have better analgesia, secondary to increased release of endogenous opioids and opioid receptor upregulation.
Definition
What is the "paradoxical reaction" you may get with Narcan?
Term
Chemical in nature--precipitation of an acid and a base (Sux + Thiopental)
Definition
A pharmaceutical interaction.
Term
Where one agent alters another's kinetics.
Sufentanil with INH agent prolongs Sufentanil DOA.
Propofol and morphine metabolized by CYP 450, so increases morphine levels.
Definition
Give an example of a pharmacokinetic drug interaction.
Term
Synergy with drugs. Opioids decrease the MAC of INH agents to a certain point.
Definition
Give an example of a pharmacodynamic drug interaction.
Term
potentiate, decrease
Definition
BZDs _______ the effects of opioids and _______ requirements for opioids for loss of consciousness.
Term
False
Definition
T/F BZDs help to potentiate the antinociceptive effects of morphine.
Term
True, together they will significantly drop BP
Definition
T/F BZDs + opioids will have a pharmacodynamic synergism with blood pressure
Term
Thiopental because opioids blunt the tachycardic response...it's still intact, but the HR won't be as high as normal with Thiopental and so BP will be compromised.
Definition
When giving Thiopental and Fentanyl, you might want to decrease the dose of which drug to maintain adequate hemodynamics?
Term
Stable MAP.
Definition
CV stability with Etomidate and opioids
Term
Stable, will balance each other out (stimulation vs. depression)
Definition
CV stability with Ketamine and opioids
Term
CV preserved. N2O has mild sympathomimetic effects
Definition
N2O + opioids effect on CV
Term
1/3 to 1/2
Definition
For hemodynamic stability, low dose volitile agents and opioids may reduce the MAC by ______ to ______. This combination also ensures adequate amnesia and promotes immobility.
Term
Vecuronium
Definition
Pancuronium is molecularly related to this drug.
Term
MAOIs inhibit hepatic microsomal enzymes and allow meperidine metabolites to build up.
Definition
Giving Meperidine to a pt on an MAOI can cause a fatal interaction because___________
Term
decrease, histamine
Definition
Opioid + Mivacurium causes _________ in BP probably due to __________ release.
Term
Can potentiate the opioid and also slow HR because opioids inhibit calcium channels.
Definition
Opioid + Ca2+ blocker
Term
Significant antinociceptive effects, prolonging opioid, decreasing dose of opioid. Mag is an NMDA antagonist.
Definition
Magnesium + Opioid
Term
Can counteract the respiratory effects of Alfentanil.
Definition
Diphenhydramine + opioid
Term
Diphenhydramine
Definition
An H1 antagonist that modestly stimulates ventilation when used alone. Also has sedative, antipyretic and antiemetic effects.
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