CRP oxygen

    Cards (38)

    • What is the primary focus of oxygen therapy?
      To improve oxygenation in patients
    • What does SO2 represent in oxygen therapy?
      Percentage of haemoglobin bound with oxygen
    • How is SpO2 different from SO2?
      SpO2 is measured non-invasively
    • What does PO2 indicate?
      Partial pressure of dissolved oxygen in blood
    • What does FiO2 stand for?
      Fraction of inspired oxygen
    • What is hypoxia?
      Deficiency of oxygen in tissues
    • What is hypoxaemia?
      Deficiency of oxygen in blood
    • What is the normal SpO2/SO2 value for an uncompromised individual?
      94% or above
    • What is the normal range for PaO2?
      10-13.3 kPa
    • What does the oxy-haemoglobin dissociation curve illustrate?
      Relationship between PO2 and O2 binding affinity
    • What is the Bohr effect?
      Increased CO2 leads to decreased O2 affinity
    • What are the normal ABG values for pH?
      7.35 - 7.45
    • What is the normal range for PaCO2?
      4.6 - 6 kPa
    • What is the definition of Type 1 respiratory failure?
      Low PaO2 with normal PaCO2
    • What conditions can lead to Type 1 respiratory failure?
      Pneumonia and fluid overload
    • What characterizes Type 2 respiratory failure?
      Low or normal PaO2 with high PaCO2
    • What is the primary cause of Type 2 respiratory failure?
      Poor ventilation leading to CO2 retention
    • How does humidification occur in the airway?
      Air flows through nasal turbinates
    • Why is humidification important for gas exchange?
      Conditions air for optimal gas exchange
    • What is the role of oxygen in therapy?
      Oxygen is a drug that must be prescribed
    • How is oxygen delivery measured?
      In litres per minute and FiO2
    • What are the two categories of oxygen delivery devices?
      Fixed devices and variable devices
    • What is the function of a flow meter?
      Measures the flow of oxygen delivered
    • What is a nasal cannula used for?
      Delivers 1-6 L/min of oxygen
    • What is a simple face mask used for?
      Delivers 5-10 L/min of oxygen
    • What is the purpose of a non-rebreather mask?
      Delivers 60-80% FiO2 at 15 L/min
    • What is the advantage of a Venturi mask?
      Provides a fixed FiO2 based on flow
    • What is the function of a cold humidified/Acqua pack device?
      Provides fixed FiO2 from 28%-60%
    • What is the benefit of high flow nasal cannula?
      Delivers heated and humidified oxygen
    • What is the target SpO2 for normal patients?
      94-98%
    • What is the target SpO2 for patients with CO2 retention?
      88-92%
    • What happens when chronic hypercapnic patients receive too much oxygen?
      Increased PaCO2 worsens Type 2 respiratory failure
    • What is oxygen toxicity?
      High oxygen levels cause cell damage
    • What is absorption atelectasis?
      Reduced gas in alveoli due to nitrogen washout
    • What is the role of nitrogen in inhaled gas?
      Nitrogen maintains alveolar patency
    • What is the effect of high oxygen levels on cilia action?
      Reduces cilia action in the lungs
    • How does oxygen affect macrophage function?
      Impaired macrophage function occurs with high oxygen
    • What is the impact of high oxygen on surfactant production?
      Reduces surfactant production in the lungs
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