Term
|
Definition
|
|
Term
| What two materials are LMA's made of? |
|
Definition
medical grade silicone (reusable)
PVC |
|
|
Term
| What is the main advantage of the LMA proseal? |
|
Definition
| it can be used at higher airway pressures (up to 30cmH2O) |
|
|
Term
| Does the LMA proseal have a built in bite block? |
|
Definition
|
|
Term
| Features of the LMA supreme? |
|
Definition
single use
built in bite block
drain tube
higher seal pressures than classic LMA |
|
|
Term
|
Definition
wire-reinforced
no resistance to occlusion from bite |
|
|
Term
| What is the official name of the intubating LMA? |
|
Definition
|
|
Term
|
Definition
alternative to face mask
elective procedures where an ET tube isn't necessary
in a known/expected difficult airway
during resuscitation |
|
|
Term
| Contraindications to LMA use |
|
Definition
-Not NPO patients
-Morbidly obese
->14 weeks gestation
-fixed pulmonary compliance
-massive injury
-abdominal/thoracic injury
-any condition w/delayed gastric emptying |
|
|
Term
| How to clean reusable LMA's |
|
Definition
wash with warm water & soap
then autoclave (138 degrees C) |
|
|
Term
| Insertion preparation of the LMA |
|
Definition
slightly inflate cuff so it's like a boat
lube posterior surface |
|
|
Term
|
Definition
| slide along hard palate while applying pressure cranially with index finger |
|
|
Term
| What are the 3 LMA insertion techniques |
|
Definition
index finger
thumb
proseal introducer |
|
|
Term
| Fixation & confirmation of LMA placement |
|
Definition
insert bite block
tape LMA in place
confirm placement (LMA sits up when inflated, listen for bilateral chest sounds) |
|
|
Term
| Do you need to bag/mask ventilate before inserting LMA? |
|
Definition
|
|
Term
| Is LMA removal more or less stimulating than with an ET tube? |
|
Definition
|
|
Term
|
Definition
don't suction below LMA
don't manipulate when patient is light
patient will begin to swallow
allow patient to awaken and follow commands
remove LMA & bite block |
|
|
Term
| What benefits does the reduced stimulation of an LMA provide? |
|
Definition
no HR increase (good for people with CAD)
can use less drugs (people wake up easier & faster) |
|
|
Term
| What head/neck procedures can an LMA be used for? |
|
Definition
Tonsillectomies
--shield larynx from blood
Airway tumor resections
--accommodates fiberoptic scope & doesn't disrupt laryngeal tumors |
|
|
Term
| Should you use the largest LMA possible? |
|
Definition
| Yes, to achieve the best seal |
|
|
Term
| Is muscle relaxation required for LMA use |
|
Definition
No, it's a very gray area
no published data on frequency of muscle relaxant use with LMA's |
|
|
Term
| Is supine a good position for LMA use? |
|
Definition
|
|
Term
| Lateral position and LMA use |
|
Definition
|
|
Term
| Prone position and LMA use |
|
Definition
| has to be short case with perfect patient |
|
|
Term
| beach chair position and LMA use |
|
Definition
|
|
Term
| incidence of aspiration while using an LMA |
|
Definition
|
|
Term
|
Definition
may be as effective as ETT
no leak until 20cmH2O |
|
|
Term
| What is the tidal vol. limit in LMA's |
|
Definition
|
|
Term
| LMA use in prolonged procedure |
|
Definition
initially not recommended for >3 hours
used 4-8 hours with gastric suctioning |
|
|
Term
| Sore throat risk with LMA |
|
Definition
| less than with an ET tube |
|
|
Term
| What should the cuff pressure be in an LMA? |
|
Definition
|
|
Term
|
Definition
less invasive
less stimulating
less incidence of sore throat
useful for difficult airways |
|
|
