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10 Cards in this Set
- Front
- Back
What will happen with a test dose if you're in the vasculature?
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increase HR 20% within 1 minute, may provide some sensory blockade
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What is usually the primary determinant of block with epidural blockade?
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The total mg
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Is epidural onset faster or slower than spinals?
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Slower
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What dictates epidural onset, depth and duration?
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Mass of the drug
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How do epidurals compare to spinals in SNS blockade?
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Less SNS blockade with epidurals
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How does sympathetic and sensory block relate in epidurals?
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May be similar
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What is the effect of vasoconstrictors on epidurals?
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Increase depth of block, prolongs anesthesia, decreased toxicity, works best with lidocaine
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Is the site of infiltration more important in spinals or epidurals?
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Epidurals, because of the segmental band of anesthesia
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What is the general dosing for epidurals?
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1-1.5 ml of LA per dermatome
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Describe the cephalad and caudad spread of epidural injection?
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1/3 caudal, 2/3 cephalad
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