TNCC, Chapter 6 Airway and Ventilation 100% correct questions and answers

SaO2% - ANSWERS Arterial O2 saturation of hgb SpO2% - ANSWERS Pulse oximetry reading of arterial saturation PaO2(mmHg) - ANSWERS partial pressure of O2 dissolved in arterial blood; reflects tissue oxygenation FiO2 (%) - ANSWERS fraction of inspired O2 ventilation - ANSWERS breathing - inhalation to exhalation - movement of air in and out of the lungs diffusion - ANSWERS passive movement of gases from area of high to low concentration perfusion - ANSWERS movement of blood into and out of tissues tongue - ANSWERS most common cause of airway obstruction in pt with alt mental status (may also be unable to protect airway by swallowing or coughing) factors contributing to ineffective ventilation - ANSWERS alt mental status, c-spine trauma, SCI, rib fx, blunt or penetrating thoracic trauma = hemo- or pneumothorax, hx of resp disease nasopharyngeal airway contraindications - ANSWERS facial trauma, suspected basilar skull fx oropharyngeal airway use - ANSWERS unresponsive pt until intubated NP airway measurement - ANSWERS tip of nose to earlobe; largest diameter easily inserted OP airway measurement - ANSWERS corner of mouth to tip of earlobe 3 indications for definitive airway management - ANSWERS failure to maintain or protect airway failure to maintain oxygenation or ventilation specific anticipated clinical course supraglottic airway/laryngeal mask airway (LMA) - ANSWERS does not protect against aspiration