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20 Cards in this Set
- Front
- Back
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OSA patients should not be extubated until when?
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they are fully awake and following commands
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What sort of pain relief should an OSA patient get?
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Preferably continuous regional anesthesia because BZD and opioids may cause loss of pharyngeal tone.
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What upper extremity nerve can be damaged if arms are not adducted to less than 90 degrees?
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The ulnar nerve.
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What nerve was found to be damaged in the lithotomy position?
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The common peroneal nerve between the lateral head of the fibula and the bar holding the legs. (also sciatic)
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What nerve injury is most common in the lateral decubitis position?
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compression injury of the brachial plexus
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What is a byproduct of sevoflurane metabolism and under what conditions is it formed?
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Compound A, trifluoroethyl vinyl ether, is produced from the breakdown of sevoflurane in settings of long duration of use and low gas flows <= 1L/min. The package insert recommends low gas flows (< 2L/min) be less than 2 MAC hours.
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What are components of LR?
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130 Na, 109 Cl, 4.0 K, 3.0 Ca, 28 lactate, pH 6.6
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How does one confirm endotracheal intubation?
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The immediate and sustained presence of CO2 with a PCO2 > 30 for 3 - 5 breaths
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What is a good head position for endotracheal intubation?
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elevation of head 8 - 10 cm with pads under occiput and shoulders on tabl. extension of head at atlanto occipital joint.
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In what patients is periop betablockade recommended?
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patients considered at risk for MI during high-risk surgery with a goal of preop HR 65 - 85.
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What are the advantages of atenolol in the periop period?
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When administered for the week prior and the week following a non-cardiac surgery for a patient at risk of MI, mortality and CV complications may be decreased for up to two years!
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What should a patient on long-term beta blockers do prior to their surgery?
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Continue being treated with betablockers to avoid systemic hypertension and MI.
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What is the desflurane vaporizer heated?
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because it is near boiling at room temperature and it is subsequently heated to 2 atm of pressure
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Is the gauge on an N20 cylinder useful?
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Not really, the pressure will remain constant until there is very little left.
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Carboxyhemoglobin absorbs which frequency of "red" light?
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visible red but not infrared.
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What colors of nail polish can interfere with pulse oximetry?
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blue green or black
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If a defasciculation dose of a NDNMBD is administered, what should the dose of SCh be?
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170% of normal.
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Describe the metabolism of pancuronium.
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80% eliminated unchanged in the urine. 10 - 40% hepatic deacetylation to inactive metabolites with the exception of 3-desacetylpancuronium which is approximately 50% less potent than its parent.
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Describe the metabolism of vecuronium.
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hepatic and renal excretion. only one metabolite is active: 3 desacetylvecuronium which is approx 50 - 70% as potent.
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Describe the metabolism of rocuronium.
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largely unchanged drug in bile with no deacetylation occurring. renal excretion may account for as much as 30% of dose.
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