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Heliox Therapy For Intubated and Nonintubated Patients

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1.  After a patient is connected to the ventilator which is attached to heliox, the returned tidal volume is half the volume of what the ventilator is administering. What should the practitioner do? Extubate the patient Obtain a chest x-ray Increase the tidal volume on the ventilator Observe the patient for adequate chest movement and obtain an ABG sample

2.  A child has a diagnosis of croup. After treatments with medicated nebulizer and oxygen therapy, the symptoms seem to be getting worse. What should the practitioner suggest? Applying heliox therapy Performing a tracheostomy on the patient Continuing the same treatment and oxygen therapy Intubating the patient

3.  What oxygen flow rate should the practitioner set on the flowmeter attached to the heliox mixture when the order is for a 9 L/min flow of 80:20 heliox? 2 L/M 5 L/M 14 L/M 16 L/M

4.  What would be the resulting flow if the practitioner orders an 80:20 heliox mixture and sets the oxygen flowmeter to 10 L/min? 10 L/M 16 L/M 18 L/M 20 L/M

5.  Heliox is used for the treatment of obstructive airway disease, using the rationale: Helium has an increased density than air Helium is 3x less dense than air Helium and air have the same density Helium has no density