CFRN: Airway & Ventilator Exam 43 Questions with Verified Answers
LEMON - CORRECT ANSWER *Look*
*Evaluate* 3-3-2 (3 fingers in mouth, 3 fingers btwn jaw & hyoid, 2 fingers between hyoid & thyroid
*Mallampatie* (I-IV)
*Obstructions*
*Neck Mobility*
Failed Airway Algorithm - CORRECT ANSWER Pt requires secure airway
3 attempts of direct larngoscopy unsuccessful
Ventilate the Pt by BVM/Simple airway, /blind Airway
Unable to ventilate/oxygenate SaO ₂ >90%
Cricothyroidotomy indicated
Gold standard for ETT confirmation? - CORRECT ANSWER CHx
In the field - waveform capnography
Location of ETT confirmation on CHx? - CORRECT ANSWER 2-3 cm above carina or at level of T2-T2
What are the 7 P's of RSI? - CORRECT ANSWER Preparation (make sure equipment
is serviceable) Pre-oxygenate (3-5 minutes, 10-15 LPM)
Pre-treatment (lidocaine, atropine)
Paralysis with induction (succinylcholine & induction agent)
Protect & position (sniffing position)
Placement with proof (thru cords, CHx, capnography)
What is the dose of Succ? - CORRECT ANSWER *1-2 mg/kg*
Contraindications to use of Succ? - CORRECT ANSWER ~Crush injuries
~Eye injuries ~Narrow angle glaucoma
~Hx of Malignant Hyperthermia
~Burns >24 hours
~Hyperkalemia
~Guillain-Barre, Myasthenia gravis
Dose of Vecuronium? - CORRECT ANSWER *0.04-0.06 mg/kg*
Dose of Rocuronium? - CORRECT ANSWER 0.6-1.2 mg/kg
Dose of Propofol? - CORRECT ANSWER 1.5 mg/kg for initial dose
50-200 mcg/kg/min
*DO NOT use with head injury Pts*
Dose of Etomidate? - CORRECT ANSWER 0.3 mg/kg
*Causes adrenal suppression therefore NO septic shock & NO Addison's Dx*
Dose of Ketamine? - CORRECT ANSWER RSI 1-2 mg/kg IV
Combative 5 mg/kg IM
Pain 0.1-0.2 mg/kg IV
Dose of Fentanyl? - CORRECT ANSWER 81x more potent that morphine
1 mcg/kg initially - max of 3 mcg/kg
What is the formula for dead space? - CORRECT ANSWER 2 ml/kg
Where are the chemoreceptors located? - CORRECT ANSWER Central - *medulla & pons*
response is driven by O ₂, CO₂ and H+
Peripheral - *aortic arch & carotid bodies*
response is driven by O ₂, CO₂ & H+ (your bodies "SpO ₂")
S&S and Tx for HYPERCARBIC respiratory failure? - CORRECT ANSWER Can't get rid
of CO₂
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