Practice Quiz

CCRN Critical Care Nursing

Category - Adult

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Constant positive airway pressure (CPAP) is a ventilator mode that provides positive pressure when the patient is breathing spontaneously. A nurse notices that the constant positive airway pressure is more than 10 cm H20. What problems could this cause?
  1. Decreased blood pressure
  2. Increased blood pressure
  3. Increased risk of respiratory distress
  4. Decreased ability to regain lung strength
Explanation
Answer: A - A constant positive airway pressure (CPAP) of more than 10 cm H20 pressure could cause an increase in the intrathoracic pressure extensively, negatively affecting the patient’s venous return. In turn, this decreases the cardiac output and blood pressure.
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