Equipment
&
Administration
&
Administration
Flow > 6 L/min
Nasal cannula
Toxicity of oxygen is caused by
Free radicals
Color of cylinder of Cyclopropane
Orange
Ventilation that enters into alveoli that are without any perfusion or without adequate perfusion
Dead space ventilation
Duration of flow
Contents / Flow
Alternative to pulse-dose or demand-flow O2 systems
Reservoir cannula
Defends against O2 free radicals
Antioxidants
Full cylinder is 2200 psig, half full when the pressure decreases is 1100 psig
Compressed Gas Cylinders
Movement of gases between the lungs and the tissues depends mainly on
Diffusion
Cylinder factor (L/psig)
Cubic feet (full cylinder) X 28.3 Pressure (full cylinder) in psig
Provide higher FiO2 capabilities than simple mask
Partial Rebreathing & Nonrebreathing Mask
Chronic hypoxemia can lead to
Righ ventricular failure (cor pulmonale)
O2 storage system hold at least 20,000 cubic ft of gas, including the unconnected reserves that are on site
Bulk oxygen
How much CO2 is normally carried in the blood
45-55 ml/dl
Duration of flow (minutes)
π·πππππππ ππππ Γπͺπππππ ππππππππ ππππ (π³ππππ πππ ππππππ)
Has a simple restricted orifice or jet through which O2 flows at high velocity
Air Entrainment (Venturi) Mask
Currently termed Hyperoxic acute lung injury
Oxygen Toxicity
Measures true flow, always attached to a 50- psig source
Thorpe Tube
Changes in CO2 levels modify the O2 dissociation curve
Bohr effect
π¨πππππ ππ πππ ππ π ππππππ ππ
π³πππππ πΆπ ππππππ ππ Γ πππ / π.πππ πππ π³
Three P's
Purpose, Patient, performance
an abnormal eye condition - premature or low birth weight infants who recieve supplemental O2
Retinopathy of Prematurity (ROP)
Flowmeter device that is used w/an adjustable pressure-reducing valve
Bourdon gauge
Form of hypoxia in which the cellular uptake of O2 is abnormally decreased
Dysoxia
Duration of gas (minutes)
Amount of gas in cylinder (L) / flow (L per minute)