Terms to Know: Critical Care PPTx ✅ Flashcards
(18 cards)
what is FiO2?
fraction of inspired oxygen (%)
what is inhaled
what is the FiO2 of room air?
21%
what is PaCO2?
the partial pressure of CO2 in arterial blood
PaCO2 is used to assess the adequacy of what?
ventilation
what is PaO2?
the partial pressure of oxygen in arterial blood
PaO2 is used to assess the adequacy of what?
oxygenation
what is SaO2?
arterial oxygen saturation measured from blood specimen (the ABG)
what is SpO2?
arterial oxygen saturation measured via pulse oximetry
what is hypercapnia?
increased amounts of carbon dioxide in the blood
what is hypoxia?
low oxygen level at the tissues
what is tidal volume?
the amount of gas that moves in & out of the lungs with each breath
how is tidal volume measured?
measured in milliliters (6-10 mL/kg)
what is minute ventilation?
total amount of gas moving in & out of the lungs per min
how do you calculate minute ventilation?
Minute Ventilation (VE) = Tidal Volume (TV) x Respiratory Rate (RR)
what is minute ventilation measured in?
L/min
what is peak inspiratory flow rate (PIFR)?
the fastest flow rate of air during inspiration
what is peak inspiratory flow rate (PIFR) measured in?
L/second
peak inspiratory flow rate (PIFR) gives us an idea of _______ _______, etc
muscle function
