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10 Cards in this Set

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