Hall Ch10 Flashcards

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1
Q

Tachyphylaxis with repeated injections of local anesthetics is caused by?

A

Dosing interval. Longer dosing intervals with pain between injections leads to tachyphylaxis. Short dosing intervals with no pain between injections does not lead to tachyphylaxis.

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2
Q

Propofol can be used to treat what is the most common side effect of neuraxial opiates

A

Pruritus

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3
Q

Early signs of digitalis toxicity

A

Loss of appetite, nausea, vomiting, pain in feet, vision disturbances, pain similar to trigeminal neuralgia

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4
Q

Initial symptoms of local anesthetic toxicity

A

Lightheadedness, dizziness, perioral numbness and tinnitus

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5
Q

Ratio of epidural to intrathecal dose of morphine is?

A

10:1

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6
Q

Onset time for epidural morphine

A

30-60 min

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7
Q

Peak effect time for epidural morphine

A

90-120 min

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8
Q

Duration time for epidural morphine

A

12-24 hrs, same for spinal morphine

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9
Q

Interscalene block has frequent sparing of what nerve?

A

Ulnar

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10
Q

Ulnar nerve derives from what nerve roots

A

C8-T1

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