Exam 35: Humidity and Bland Aerosol Therapy

A physician orders bland water aerosol administration to a patient with an intact upper airway. Which of the following airway appliances could you use to meet this goal? I.simple oxygen mask II.face tent III.T-tube IV.aerosol mask

A patient has been supported by a mechanical ventilator using a heat-moisture exchanger for the last 3 days. Suctioning reveals an increase in the amount and tenacity of secretions. Which of the following actions is indicated?

What is the primary goal of humidity therapy?

Which of the following factors cause the isothermic saturation boundary (ISB) to shift farther down into the airways? I.decreased ambient temperature II.increased tidal volume (V_T)III.endotracheal intubation

Factors affecting a humidifier's performance include all of the following except:

Which of the following barrier precautions should be used when heated humidifier circuits are changed or removed? I.wearing gloves II.wearing goggles III.5-minute hand scrub

Inhalation of dry gases can do which of the following? I.increase viscosity of secretions II.impair mucociliary motility III.increase airway irritability

Which of the following automatic feed systems are used to regulate water levels when using a humidifier with a continuous feed system? I.leveling reservoirs II.flotation controls III.optical sensors

All of the following are TRUE regarding a membrane-type humidifier except:

The relief valve on a bubble humidifier serves which of the following functions? I. It indicates when flow has been interrupted. II. It protects the device from pressure damage. III. It warns you when the water level is low.

Which of the following is FALSE about the isothermic saturation boundary (ISB)?

When checking a patient attached to a servo-controlled heated-wire humidifier breathing circuit, you notice no visible condensate anywhere in the tubing. Based on this observation, you can conclude that the relative humidity of the delivered gas is which of the following?

A physician orders bland water aerosol administration to a patient with a tracheostomy. Which of the following airway devices could you use to meet this goal? I.tracheostomy mask II.face tent III.T-tube IV.aerosol mask

Which of the following are acceptable means to help minimize the problems caused by condensation in heated humidifier circuits? I.installing water traps in the circuit II.using a heated wire circuit III.setting heater temperature to 25° to 28° C

Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?

What device adds molecular water to gas?

When is a heat-moisture exchanger (HME) performing well?

During routine use on an intubated patient, a heated humidifier should deliver inspired gas at which of the following?

Simple unheated bubble humidifiers are commonly used to humidify gases with what type of systems?

A heated humidifier should trigger both auditory and visual alarms and interrupt power to the heater when the delivered temperature exceeds which of the following?