E2 - Airway Equipment I Flashcards
What is the airway equipment allows gas administration to the patient from the breathing system without any apparatus in the patient’s mouth?
A. Nasal cannula
B. Face mask
C. Nasopharyngeal airway
D. LMA Classic
B. Face Mask
What does a face mask allow us to do before induction of anesthesia?
A. measure their oral, pharyngeal and laryngeal axis
B. provide our volatile gas
C. preoxygenate/denitrogenate
D. do a pressure check with the patient
C. Preoxygenation/Denitrogenation
get out their damn nitrogen (filler gas) so we have more space for our o2 + gas to take up in the lungs
What are the three components of the Face Mask?
A. body
B. corrugated tubing
C. connector
D. straps
E. seal
F. fresh gas inlet valve
A. Body - Transparent, Provides shape
E. Seal - Inflatable cushion, 20 to 25 cm H2O with minimal leak
C. Connector - 22 mm internal diameter, circular ring with prongs for straps
What pressure should the inflatabale cushion be at to provide enough of a seal?
A. 10-15 cm H2O
B. 15-20 cm H2O
C. 20-25 cm H2O
D. 25-30 cm H2O
C. 20-25 cm H2O with minimal leak
What can we add to the face mask to provide comfort to a pediatric patient?
A. volatile gas
B. vaseline
C. scent
D. more air in the cushion
C. scent
lol gas
What is the criteria associated with difficult mask ventilation?
- Obese (BMI > 30 kg/m2)
- Beard (big bushy ones)
- Edentulousness
- Snore/OSA
- Elderly >55, Male
- Mallampati 3 or 4
OBESE-M
What are some ways to overcome Difficult Mask Ventilation?
A. nasal intubation
B. two handed technique
C. video laryngoscope
D. tell the patient to close their mouth
E. cut the beard
B. Two-handed technique
E. Cut the beard (let the pt know beforehand)
Other: Oral airway OR nasopharyngeal airway, Tegaderm
not in this order
What should you NOT give if you cannot mask ventilate your patient?
Do not give paralytics!!!
What should you do if you cannot mask ventilate the patient?
A. keep trying to fit the same mask
B. difficult airway algorithm
C. give 0.6 mg/kg rocuronium
D. nasal intubation
B. Emergency adjunct (difficult airway algorithm)
What might be used to hold the face mask in place and allows the CRNA’s hand to be free?
A. tell OR circulator to hold the mask
B. tape
C. tell patient to hold it until you paralyze them
D. mask straps
D. Mask Straps
How does an OPA open the airway?
A. by sliding the tongue and epiglottis into the posterior pharyngeal wall
B. by lifting the tongue and epiglottis away from the posterior pharyngeal wall
C. by lifting only the tongue away from the posterior pharyngeal wall
D. by sliding only the epiglottis towards the posterior pharyngeal wall
B. maintain or opens the airway by lifting the tongue and epiglottis away from the posterior pharyngeal wall
OPA decreases the work of breathing during spontaneous ventilation.
Why should you not put an OPA in an awake patient?
A. patient will spit too much
B. gag reflex isn’t intact anymore
C. high risk of laryngospasm
D. patient might cough during
C. High risk of laryngospasm
Also: Patient will fight you and Gag reflex still intact
Most OPAs are made of _______
A. rubber
B. plastic
C. paper fiber
B. mesh
B. Plastic
Why should the bite portion of an OPA be firm enough?
A. To stay open during a deep inspiration
B. Prevents closure during a deep cough
C. Prevents lumen from closing when the patient bites
D. For patient to have a soft area to bite
C. Prevents lumen from closing when the patient bites
NO OPAs FOR METH MOUTH! TEETH WILL FALL OUT
The OPAs are color-coded by size, which is measured in ______.
millimeters
How is appropriate sizing of OPA determined? select 2.
A. using measuring tape
B. measure from corner of mouth to the angle of maxilla or earlobe
C. ask patient to open mouth to eyeball distance to oropharynx
D. use the OPA
E. measure from corner of mouth to the angle of mandible or earlobe
F. using tongue depressor
D. OPA should be used
E. measure from the corner of the mouth to the angle of the mandible or the earlobe for appropriate sizing.
What should be depressed when placing an OPA?
A. the patient
B. gag reflex
C. pharyngeal and laryngeal reflexes
D. the SRNA
E. neural reflexes
C. Pharyngeal and Laryngeal Reflexes
What are the two methods to OPA insertion?
- Approach with OPA backward and use 180-degree turn method
- Use a tongue depressor to insert OPA method
Where should the CRNA place the bite block?
A. between the upper and lower teeth and gums
B. between the maxilla and lower teeth
C. between the maxilla and gums
D. between the upper and lower teeth and tongue
A. bite block should be placed between the upper and lower teeth and gums
used often in endoscopy!
NPAs are tolerated in patients with intact _________.
A. gag reflexes
B. neuro reflexes
C. airway reflexes
D. babinski reflexes
C. Airway Reflexes
When would a NPA be contraindicated? Select 3.
A. Nose piercings
B. Basilar skull fracture
C. Hx of epistaxis
D. Chronic heparin use
E. Pregnancy
F. Trauma patients
G. Mandible fracture
B. basilar skull fracture
C. Hx of epistaxis
E. Pregnancy
other CIs: Nasal deformity, Coagulopathy
NPAs are preferably used with these patients: Select 2.
A. Normal mouth opening
B. Oral trauma
C. Edentulous
D. Gingivitis
B. Oral Trauma
D. Gingivitis
also preferred in loose teeth and limited mouth opening
Describe the design of NPA: Select 2
A. flange is on distal end of tube
B. resembles shortened tracheal tube
C. more stimulating than OPA
D. sized by inner diameter
E. trumpet at outer end prevents complete passage
B. Resembles shortened tracheal tube
E. Flange (trumpet!) at outer end to prevent complete passage
and:
* Less stimulating than OPA
* Sized by outer diameter in French scale
How should the appropriate size of the NPA be determined?
A. bony mandible to base of skull
B. nostril to the external auditory meatus
C. bony mandible to superior part of ear
D. nostril to posterior mandible
B. nostril or bony mandible to the external auditory meatus
How can you mitigate epistaxis during NPA insertion?
Lubricate NPA thoroughly
What are some complications of airways discussed per lecture?
- Airway obstruction (from incorrect placement)
- Dental/oral damage
- Retention/swallowing
- Ulceration of the nose or tongue
- Laryngospasm
- Latex allergy (some older NPAs usually green in color)
ADRULL (“a drool”)
What is the type of airway that can be inserted into the pharynx to allow ventilation, oxygenation, and administration of anesthetic gases without the need for endotracheal intubation?
Hint: the intermediate bridge between a face mask and ETT
Supraglottic Airway
Can be used in both spontaneous ventilation and PPV
Who created the Supraglottic Airway?
What year was it created?
- Dr. Archie Brain
- 1982/1983
Proximally, LMA classic is shaped like a ________.
A. tracheal tube
B. NPA
C. OPA
D. face mask
- Tracheal Tube
distally: elliptical mask
proximally: TT