Airways B Final Flashcards
Pathophysiology of angioedema
Vasoactive mediators produce arteriolar dilation, venular inflammation, and vascular leakage
Overall incidence of angioedema in the US
15%
Cause of angioedema
C1 esterase inhibitor deficiency
Inheritance pattern for angioedema
Autosomal dominant
Drugs for treatment of angioedema
- Anabolic steroids
- FFP
- H1/H2 blockers
Most prevalent etiology for angioedema
Drug related
Inheritance pattern of achondroplastic dwarfism
Autosomal dominant
Normal body components of achondroplastic dwarf
Normal trunk
Induction of child with foreign body in airway
- Inhaled induction
- Atropine
- Heliox
Spinal deformity with Marie-Strumpell disease
Spondyloarthropathy
Antihypertensive class most frequently associated with angioedema
ACE inhibitor
Percent of deaths due to airway injuries that were caused by esophageal perforation
19%
Condition of c-spine in an achondroplastic dwarf
Cervical instability
Outcome for untreated angioedema
- Sequelae by tissues and organs affected
- Death
Joints involved in producing hoarseness
Cricoarytenoid
Does angioedema occur in or below the dermis?
Below
Shape of infant epiglottis
Omega shape
Level of glottis in infants
C3-C4
Narrowest part of infant epiglottis
Cricoid cartilage
Age for end of development in humans
7 years
Age for peak incidence of foreign body aspiration
2-3 years
Which LeFort fracture can you NOT manage with nasal airway, nasal ETT, or NGT?
Lefort II
Which LeFort fracture can you NOT manage with an anode tube?
Lefort III
Induction for patients with LeFort fractures
RSI w/ great preO2
Airway management of patient with Ludwig’s angina
Nasal ETT
Airway management of patient with head and neck burns
Oral ETT
Airway management for a tonsillar abscess drainage
Anode
Sinuses affect by blowout fracture
Maxillary
Action most likely to produce iatrogenic retropharyngeal abscess
Failed NGT placement
Lab measurements following parathyroidectomy
Check Ca2+ levels
Airway management post-laryngectomy procedure
Laryngectomy tube
Most common cause of strider in 2 year olds
Laryngomalacia
Ideal FiO2 for laser surgeries
21%
Laser used for more superficial cuts and cauterizing
CO2
Where is squamous cell carcinoma most common
Orally
Airway management risks for patient with neurofibromatosis
Neuromas can be very vascular and bleed easily
Muscles that abduct vocal cords
Posterior cricoarytenoid
Anisocoria
Unequal pupil size
Examples of hyaline cartilage in the airway
- Cricoid
- Arytenoid
- Thyroid
Examples of elastic cartilage in the airway
- Epiglottis
- Cuneiform
- Corniculate
Inventor of LMA
Dr. Brain
Function of cuneiform cartilage
Stiffen aryepiglottic fold, help reopen glottis
Appropriate heliox concentration for airway management
80:20
Left RLN loops around what structure
Aorta
Position of VCs during effort closure
Midline
Sinus involved in Caldwell Luc’s procedure
Maxillary
Dr. Hall’s way of selecting ETT for children older than 2 years
(18+age)/4
Dr. Hall’s way of selecting oral ETT depth for children older than 2 years
(24+age)/2
Dr. Hall’s way of selecting nasal ETT depth for children older than 2 years
(30+age)/2
Tube size for preemie under 1000 grams
2.5mm
Tube size for preemie over 1000 grams
3.0mm
Tube size for 3 month neonate
3.0mm
Tube size for 3-9 month infant
3.5mm
Tube size for 9-18month infant
4.0mm
Hallmark breath sounds of laryngomalacia
Stridor
Neurofibromatosis 1 is transmitted on which chromosome
17
Neurofibromatosis 2 is transmitted on which chromosome
22
Vocal cord injury lasting less than 72 hrs
Ulceration
Vocal cord injury lasting 3-21 days
Granulomata
Vocal cord injury lasting more than 2 weeks
Cicotricial stenosis
Tube used for laser surgeries with metal body and double cuffs
LaserFlex ETT
Tube used for laser surgeries with red rubber body and merocel wrap
Rusch merocel ETT
Specialized tube for patients with laryngectomy
Laryngoflex
4 functions supported by effort closure
- Coughing
- Parturition
- Defecation
- Lifting
Which cartilage is part of the two true joints in the larynx?
Cricoid
If suction is inadvertently applied to the lungs by an NG tube that enters the trachea beside a cuffed ETT, what action should be taken following remove of the NGT?
Give continuous positive pressure and hold
Flow volume loop of patient with thyroid disease
Extra thoracic
Airway management of patient during laryngectomy
Laryngoflex tube
Airway management of acute epiglottitis
Oral ETT, remain intubated after surgery
Etiology of otitis media with NETT
Misplaced ETT in eustachian tube
Gastric pressure of a gravid patient pregnant with 1 child
7-17 cmH2O
Gastric pressure of a gravid patient pregnant with 2 children
7-40 cmH2O
Gastric pressure of a gravid patient in the lithotomy position
7-24 cmH2O
Vertebral level of hyoid bone
C3
Most frequent laryngeal malignancy
Squamous cell carcinoma
Incidence of post-op hoarseness
3%
Pediatric ETT tube
Cole tube
Airway management for patient with Pierre Robin Syndrome
Tracheostomy tube