Definitions
A condition where oxygen supply is inadequate either to the body as a whole or to a specific region
What is Hypoxia
The proportion of red blood cells whose hemoglobin is bound to oxygen
What is Arterial oxygen saturation (SaO2)
An imbalance of blood flow and ventilation
What is V/Q mismatch
A seamless steel or lightweight alloy container filled with oxygen under pressure, equal to 2000 or 2200 psi when full
What is oxygen cylinder
Name the appropriate device for the following scenario:
A teenager with a rib fracture is breathing shallowly. You try to place a non-rebreather but she freaks out saying it will “smother” her.
What is nasal cannula
Abnormally low level of oxygen in the blood
What is Hypoxemia
The amount of oxygen dissolved in the plasma
What is Arterial oxygen tension PaO2
The mechanism of hypoxemia when a patient overdoses on an opioid
What is Hypoventilation
The preferred mask for oxygen delivery in the pre-hospital setting
What is non-rebreather mask
In order to avoid this, oxygen administration should be titrated to patient condition
What is Hyperoxygenation
A bluish color of the skin and mucous membranes that indicates poor oxygenation of tissues
What is Cyanosis
The rate at which oxygen is transported from the lungs to the microcirculation
What is Oxygen delivery DO2
Blood passes from the right to the left side of the heart without being oxygenated
What is right to left shunt
Provides 50 psi to power a flow-restricted, oxygen-powered ventilation device
what is high-pressure regulator
Tachycardia progressing to bradycardia, dyspnea, pale/cool skin, altered mental status and accessory muscle use are signs of this
What is severe hypoxia
The process by which the blood and cells become saturated with oxygen
What is Oxygenation
The rate at which oxygen is removed from the blood for use by the tissues
What is Oxygen consumption VO2
The mechanism of hypoxemia that results from high altitude
What is reduced inspired oxygen tension(PiO2)
The preferred method of blow-by for a patient that may require bag-mask ventilation
What is flow-inflating (anesthesia) bag
The anticipated SpO2 reading for a patient who has been exposed to carbon monoxide
What is abnormally elevated
This is found on the surface of red blood cells and is responsible for picking up the majority of oxygen in the blood and carrying it through the arterial system to the capillaries throughout the body
What is Hemoglobin
The slope of the relationship between oxygen delivery (DO2) and oxygen consumption
What is oxygen extraction
The movement of oxygen from the alveolus to the pulmonary capillary is impaired
What is diffusion limitation
EMT’s in MA can now use this device for adult patients experiencing bronchospasm, respiratory distress and/or congestive heart failure
What is CPAP
This is a phenomenon that occurs in COPD patients. The brains stops using high levels of CO2 as a trigger to breath. In these cases, oxygen therapy can actually cause a patient to go into respiratory arrest.
What is Hypoxic drive