22 Questions
Who is best prepared to recommend the correct dosage and delivery method for oxygen therapy?
Respiratory therapists
What is the primary goal of oxygen therapy?
To maintain adequate tissue oxygenation while minimizing cardiopulmonary workload
What is the benefit of long-term oxygen therapy (LTOT) in patients with COPD?
It reduces cognitive impairment
What is the result of correcting hypoxemia on PAO2 and PaO2?
Increased PAO2, increased PaO2
What is the clinical objective of oxygen therapy in correcting hypoxemia?
To correct documented or suspected acute arterial hypoxemia
Who can administer oxygen therapy in emergency situations?
Licensed practitioners
What is the significance of correcting hypoxemia in oxygen therapy?
It is the most tangible and easiest to document objective
What is the role of a physician in oxygen therapy?
To order oxygen therapy as a standing order or clinical protocol
What is the primary effect of intrapulmonary shunt on the oxygenation of blood?
Perfusion of alveoli that are poorly ventilated or poorly oxygenated
What is the difference between hypoxemia and hypoxia?
Hypoxemia is a lack of oxygen in the blood, while hypoxia is a lack of oxygen in the tissues
What is the formula for calculating oxygen delivery (DO2) in the body?
DO2 = cardiac output × CaO2
What is the consequence of uncorrected hypoxemia?
Tissue ischemia and cell death
What is the result of a right to left shunt?
Deoxygenated blood from the right side of the heart mixes with oxygenated blood in the left side
What is the effect of extrapulmonary shunt on oxygenation of the blood?
Deoxygenated blood from the right ventricle completely bypasses the lung and enters the left atrium
Why is it important for RCPs to understand the difference between hypoxemia and hypoxia?
So they can provide accurate patient education and prevent confusion
What is the units of measurement for Fractional Inspired Oxygen Concentration (FIO2)?
Number from 0 to 1
What is the partial pressure of O2 dissolved in the arterial plasma?
PaO2
What is the effect of hypoxia on the mitochondria?
Prevents ATP production aerobically
What is the cause of myocardial ischemia?
Both reduced blood flow and reduced blood oxygen
What is refractory hypoxemia?
Hypoxemia that does not respond to O2 administration
What is the effect of a left to right shunt?
Reduces oxygenated blood flow to the aorta
What is the result of inadequate oxygen at the tissue cell level?
Cell death
Learn about the principles of oxygen therapy, including prescription requirements and administration guidelines. Understand the role of respiratory therapists and licensed practitioners in providing oxygen therapy to patients.
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