Flashcards in Chapter 30: Care of Patients Requiring Oxygen Therapy or Tracheostomy Deck (7):
what three systems are essential for oxygen perfusion?
the respiratory system, cardiovascular, and hematologic systems (when one fails the other two compensate)
hypoxemia vs hypoxia
hypoxemia: low O2 levels in the blood
hypoxia: low 02 levels in the tissues
O2 content of atmospheric air
what is the Fio2?
the fraction of inspired oxygen, the purpose of oxygen therapy is to use the lowest Fio2 to achieve the desired results; remember just because we raise the Pao2 level, doesn't mean we cure the underlying disease
what is hypercarbia? what is important to know concerning oxygen therapy?
hypercarbia: when patient has increased levels of partial pressure of arterial carbon dioxide (PaCO2)
- problem is that low PaO2 levels are the patient's primary driving force for breathing, so only 1-2 L/min should be administered via NC...why? to prevent decreased respiratory effort
what is the best assessment to use for determining oxygen levels and need for oxygen therapy?
arterial blood gas (ABG) analysis