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Exam Preview

An Introduction to Neurally Adjusted Ventilatory Assist (NAVA)

View Course Details Please note: exam questions are subject to change.


1.  The following are benefits of NAVA ventilation:
  1. Uses the activity of the diaphragm to assist breathing, allowing complete synchrony with the patient
  2. Allows assistance, proportional to the patient’s own efforts
  3. Is independent of leaks, so can be used for non-invasive and invasive support
  4. All of the above
2.  One major cause of ventilator asynchrony is:
  1. Auto-triggering
  2. Single triggering
  3. Effective triggering
  4. Absent triggering
3.  The sizing and insertion depth of the Edi catheter is determined by patient:
  1. Both weight and length
  2. Both length and height
  3. Only Height
  4. Only weight
4.  NAVA may not be optimally adjusted when looking at:
  1. Blood pressure
  2. Heart rate
  3. Blood gases
  4. Respiratory rate
5.  What are the contraindications for NAVA?
  1. Absent or insufficient respiratory effort (severe CNS anomaly, over-sedation, patient paralyzed)
  2. Esophageal atresia
  3. Phrenic nerve injury
  4. All of the above

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