Exam 35: Humidity and Bland Aerosol Therapy

Which of the following would indicate that administration of a bland water aerosol to a patient with postextubation upper airway edema was having the desired effect? I.decreased work of breathing IIimproved vital signs III.decreased stridor or dyspnea IV.improved oxygen saturation

All of the following are contraindications for heat-moisture exchangers except:

What is the most important factor determining a humidifier's performance?

What is the total water output of heated large-volume jet nebulizers?

For which of the following patients might you recommend administration of a hypertonic saline aerosol? I.acquired immune deficiency syndrome (AIDS) patient with severe pneumonia symptoms II.patient with a bypassed upper airway III.patient suspected of having tuberculosis

Clinical indications for delivering cool humidified gas include which of the following? I.postextubation edema II.upper airway inflammation III.croup (laryngotracheal bronchitis)IV.epiglottitis

Which of the following nebulizers uses a piezoelectric transducer to generate liquid particle aerosols?

When checking an oxygen delivery system that incorporates a bubble humidifier running at 6 L/min, you occlude the delivery tubing, and the humidifier pressure relief immediately pops off. What does this indicate?

In general, to deliver oxygen to the upper airway, a bubble humidifier is required only when the gas flow exceeds which of the following?

A patient receiving nasal oxygen at 3 L/min complains of nasal dryness and irritation. Which of the following actions would be appropriate?

Where should you place the thermistor probe for a servo-controlled heated humidifier being used on a patient receiving mechanical ventilation?

The particle size produced by an ultrasonic nebulizer depends mainly on which of the following?

Which of the following are necessary features to look for in selecting a heated humidifier? I.water level readily visible II.over-temperature protection III.auditory and visual alarms IV.minimal temperature overshoot

An ultrasonic nebulizer is not putting out any mist. After confirming (a) a good electrical power supply (cord, plug, and circuit breakers are in good working order), (b) that carrier gas is actually flowing through the device, and (c) that the output control is set at maximum, what should you do?

How often would you recommend that a home care patient disinfect a home ultrasonic room humidifier?

The typical pressure pop-off incorporated into most simple bubble humidifiers releases pressure above which of the following?

A neonatologist is concerned about the possibility of hearing damage occurring to a premature infant receiving bland water aerosol delivered via air-entrainment nebulizers inside an incubator or isolette. Which of the following would you recommend as the best way to overcome this problem?

Increasing the flow through an unheated bubble humidifier has which of the following effects?

What are some types of passover humidifiers? I.simple reservoir II.membrane III.wick

Which of the following are components of an ultrasonic nebulizer? I.air-entrainment orifice II.radiofrequency generator III.nebulizer chamber IV.piezoelectric transducer V.blower or fan