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What is epidural analgesia used for?
pain management in abdominal and lower extremity surgeries
What are 3 ways epidural analgesia is administered
bolus
continuous infusion
PCA
What lumbar vertebrae are the target sites for epidural analgesia?
L4-5
Is the needle for epidural injection larger or smaller than a spinal needle?
larger so a catheter can be threaded through it
What effects will be noted on a test dose if the epidural needle is in the vein?
immediate increase in heart rate and BP (epinephrine effects)
What are some advantages of epidural analgesia over IV opiods
- better pain control
- lower stress hormones
- better pulmonary function
- earlier ambulation
- less post op complications
- shorter hospital stays
Two most commonly used epidural opioids
morphine and fentanyl
Is epimorph hydrophilic or lipophilic?
hydrophilic
Does morphine circulate freely in the CSF in epidural infusions
yes
Does fentanyl circulate freely in the CSF in epidural infusions?
no
Is fentanyl lipophilic or hydrophilic?
lipophilic
Which causes greater resp depression in epidural infusion, morphine or fentanyl and why?
morphine because it is hydrophilic and circulates freely in the CSF coming in contact with the resp centre
Where does fentanyl tend to accumulate when used in epidural infusion? CSF or fatty tissue?
fatty tissue
Which causes more sedation in epidural infusion? Morphine or fentanyl
fentanyl (lipophilic)
List 3 SE of epidural opioids
- resp deression
- urinary retention
- pruritus
- N & V
- sedation
Duration of morphine in epidurals
- a) 2-3 hours
- b) 2-4 hours
- c) 3-6 hours
- d) 5-24 hours
5-24 hours
Duration of fentayl in epidurals
- a) 2-3 hours
- b) 2-4 hours
- c) 3-6 hours
- d) 5-24 hours
2-4 hours
What is a commonly used local anesthetic in epidurals
bupivicaine (marcaine)
what is the onset of action of bupivicaine when used in epidurals
- a) 2-3 minutes
- b) 5-10 minutes
- c) 5-30 minutes
- d) 10-20 minutes
5-30 minutes
what is the duration of action of bupivicaine in epidurals
- a) 1-2 hours
- b) 2-4 hours
- c) 3-8 hours
- d) 10-24 hours
3-8 hours
List 3 Side effects of bupivicaine in epidurals
- hypotention (autonomic blockade)
- resp depression
- headache
- urinary retention
- paralysis (migration of catheter to subarachnoid space)
What 2 medications should you have on hand during epidural analgesia
narcan and ephedrine
List 4 things to assess during epidural analgesia
- sedation
- pain
- sensory/dermatome level
- movement - motor function
List 4 complications of epidural analgesia
- resp depression
- N& V
- oversedation
- urinary retention
- pruritus
- motor blocks
- extension of numbness level
- postural hypotension
- catheter migration
- disconnected infusion
- headache
A motor block is present in epidural infusion if the patient is unable to move which joints?
toes, feet, ankles, knees, hips
If a motor block is present in epidural analgesia, what action should a nurse take?
stop infusion
notify anesthetist
Define postural hypotension in terms of epidural analgesia
20% drop from preop systolic BP
What nursing measures should be employed for postural hypotension in epidural analgesia?
lower head of bed flat
administer saline bolus
notify anesthetist
What are signs that an epidural catheter has migrated in the spinal or vascular space?
- hypotension
- severe sedation
- signs of systemic toxicity (with local anesthetics) eg paralysis, seizures, circumoral numbness
Author
meowzart
ID
42553
Card Set
epidurals flashcards.txt
Description
epidural care for nurses
Updated
2010-10-16T19:04:03Z
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