Airway Flashcards
Narrowest point of the extra thoracic airway
Subglottis/cricoid cartilage
FiO2 delivered by nasal cannula
1L = 24% (increase by 4% for each L up to 6 L for max of 40%)
ETT size (uncuffed)
4+ age/4
ETT depth
3 x ETT diameter
12 + age/2
Fentanyl: dose
1 mcg/kg
Fentanyl: onset/duration
120 sec/20-30 minutes
Midazolam: dose
0.3 mg/kg
Midazolam: onset/duration
3-5 min/2 hr
Ketamine: dose
1 mg/kg (2 mg/kg IM)
Ketamine: onset/duration
30 sec/10-15 min
Ketamine: benefits
spontaneous ventilation preserved, brochodilator, no hypotension
Ketamine: drawback
increased secretions
sympathomimetic activity BUT direct negative inotropic effects that can cause CV depression in patients with no endogenous catecholamines
Etomidate: dose
0.3 mg/kg
Etomidate: onset/duration
“rapid”/10-15 minutes
Etomidate: benefits
minimal CV/respiratory compromise, decreased ICP
Etomidate: drawback
adrenal insufficiency
Propofol: dose
1 mg/kg
Rocuronium: dose
1 mg/kg
Rocuronium: onset/duration
30-50 sec/15-45 minutes
Propofol: drawback
hypotension, PRIS - metabolic acidosis, bradycardia
Atropine: dose
0.02 mg/kg (minimum 0.1 mg)
Lidocaine: dose
1 mg/kg
Lidocaine: benefits
prevents increased ICP with laryngoscopy
Atropine: benefits
Decreases secretions, blunts bradycardia (infants < 6 mo)
Nasopharyngeal airway size
nares to tragus
Oropharyngeal airway size
corner of mouth to angle of mandible
Rocuronium: MOA
non-depolorazing neuromuscular blocking agent
competitively binds to Ach receptors in NMJ
Etomidate: MOA
GABA inhibitory system
