Practice Questions

• A client who is a mouth breather, but requires 6 L/min to keep SpO2 >92%

  Simple Mask
• A client with a RR 4, SaO2 85% on RA

  Bag Valve Mask
• A client with pneumonia, needs 4 L/min

  Nasal Cannula
• A client with crackles in bases, RR 32, SpO2 82% on RA

  Non-rebreather Mask
• Symptoms:

  • RR >30
  • Confusion
  • SpO2 <90
  • Absent breath sounds
  • HTN
  • Diaphoresis
  • Use of intercostal msucles
  • Speaking 2-3 words at a time
  • Tripod position
  • Use of suprasternal muscles
  • Tachycardia
  • Agitation
  • Coughing
  • Diminished breath sounds
  • CO2 >45
  • Anxiety

  Are all signs of

  Respiratory failure
• When assessing a patient with sepsis, which finding would alert the nurse to the onset of acute respiratory distress syndrome (ARDS)?

  PaO2 remains below 55 regardless of administration of 90% O2
• A patient with ARDS is receiving mechanical ventilation with positioning end - expiratory pressure (PEEP). What is the primary purpose of using PEEP in this patient?

  Reduce atelectasis and improve oxygenation - PEEP is used in ARDS to reduce atelectasis and improve oxygenation by keeping the alveoli open during expiration. This helps to maintain functional residual capacity and prevent alveolar collapse.