12 Questions
What term refers to a severe condition characterized by the complete absence of oxygen supply to body tissues and cells?
Anoxia
Which condition specifically refers to the presence of low oxygen levels in the bloodstream?
Hypoxemia
What can lead to apoptosis or necrosis due to increased concentrations of oxygen free radicals causing cellular damage?
Oxygen toxicity
Which factor can cause hypoxia by decreasing the oxygen-carrying capacity of the blood?
Anemia
What term describes a vicious cycle initiated by cell death triggers and oxygen free radicals causing further cell damage?
Oxygen toxicity
Which condition can be chronic or acute, ranging from mild to severe depending on the extent of oxygen deprivation?
Hypoxia
What is the primary rationale for administering supplemental oxygen in the ICU?
To avoid hypoxemia in patients
Why is the administration of supplemental oxygen considered risky?
It increases morbidity and mortality
What can an elevated level of PaO2 lead to?
Increased toxic reactive oxygen species production
Why is there an emphasis on a conservative, normoxic oxygenation strategy?
To reduce the risk of harm associated with excessive oxygen use
What is one risk associated with high FiO2 values in poorly ventilated patients?
Increased risk of lung injury
Why is the liberal administration of supplemental oxygen discouraged?
To increase the production of toxic reactive oxygen species
Learn about the administration of supplemental oxygen, a cornerstone of care in the intensive care unit (ICU) to avoid hypoxemia. Understand the primary rationale behind oxygen therapy and its availability, cost, and safety.
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