3. Epidural Placement Flashcards
what is the 1% lidocaine in the epidural kit for?
drawn up in 3mL syringe used for skin wheel
what is in the test dose lidocaine?
1.5% lidocaine and epi 1:200,000
what is the test dose lidocaine drawn up in?
20mL syringe
what is the test dose of lidocaine used for?
initial bolus of epidural local anesthetic right after the catheter is placed.
what is the purpose of the test dose?
to make sure the catheter isn’t in:
intrathecal
intravascular
how can you diagnose that the catheter is intrathecal?
immediate numbing of the legs
profound sympathectomy
how can you diagnose that the catheter is intravascular
immediate increase in HR and BP
tinnitus, metallic taste, numbness in mouth
what is the glass syringe used for?
(saline and air) loss of resistance technique when attached to the tuohy needle
what is an alternative to the glass loss of resistance syringe
plastic syringe with only air in it
what is the benefit of using saline in your loss of resistance syringe?
you can see the air bubble compressing in the syringe
what is the disadvantage for using saline in the loss of resistance syringe?
harder to diagnose a wet tap because the saline coming out of tuohy may be mistaken for CSF
If you do wet tap what will the CSF most likely do?
spray out of the tuohy needle
what is false loss of resistance
can be felt when off midline and enters paraspinous muscles
how do you know if it was a false loss of resistancE?
because you will have difficulty threading the epidural catheter
what is the cc amount of test dose?
5mL
what is a withdrawal filter
attached to syringe prior to drawing up local, filters out glass particles
what is the alternative to the withdrawal filter?
filter needle
what can you use if you forget to use a filter needle on the local?
injectate filter
attachef onto syringe
what syringe do you draw up the 1% lidocaine?
3mL syringe with 18ga (purple) needle
what needle do you use to inject the 1% lidocaine for the skin wheel?
25ga needle (blue)
what is the 22ga (grey) needle used for?
trick question, we don’t know
could be used as alternative to the skin wheel local
where do you put your needles on the epidural tray?
stick needles into the needle holder (red and has styroform inside)
prevents from recapping needle