Exam 11: Aerosols and Administration of Medication

Which of the following considerations is most important when using a large-volume nebulizer to provide oxygen and humidification to an infant in an incubator?

When a conventional jet nebulizer is operated at a flow of 10 L/min versus 5 L/min,what should the respiratory therapist expect?

Which of the following methods is acceptable for delivering a drug via a pMDI to an intubated neonate receiving mechanical ventilation?

An aerosol treatment is being administered via a jet nebulizer.After 8 minutes the nebulizer starts "sputtering." What should the therapist do at this point?

Why should pMDIs containing steroids in particular be used with a valved holding chamber?

A conventional jet nebulizer with a dead volume of 1 mL is filled with a 3-mL solution of albuterol.What percent of the medication is available for nebulization?

How can a patient avoid the problem of terminating inhalation when a plume from a pressurized metered-dose inhaler (pMDI)impacts the oropharynx?

The physician in the emergency department is attending to a 12-year-old child who has an exacerbation of asthma.The physician asks the therapist to recommend a medication that has a synergistic effect with beta-2 agonists during asthma exacerbations.Which of the following medications should the therapist recommend?

Pneumatic nebulizers operate according to which of the following physical tenets?

By what percentage can breath holding increase particle deposition in the lungs?

Why are pass-over humidifiers preferred over pneumatic nebulizer humidifiers?

An 18-month-old patient brought to the emergency department is exhibiting signs and symptoms consistent with an acute asthma episode and is administered a beta-2 agonist to which the patient does not respond favorably.Which of the following conditions could be responsible for this patient's problem?

Which of the following suggestions will have the most significant impact on the inhaled dose of medications with nebulizers?

In order to guarantee the same performance of the nebulizer after repeated use,what should be suggested to the user?

The respiratory therapist verifies an order to administer albuterol 1.25 mg to a 2-kg infant.Why does this dose have the same safety and efficacy profile as a 2.5-mg dose in the adult?

For which of the following types of patients would using a dry powder inhaler (DPI)for medication delivery likely be contraindicated?

The therapist receives an order to administer a bronchodilator in-line to an infant receiving mechanical ventilation.The order also indicates that the nebulizer must not significantly increase the patient's delivered tidal volume.Which of the following aerosol delivery devices should the therapist select? I.Vibrating mesh nebulizer II.pMDI III.Jet nebulizer IV.Ultrasonic nebulizer

Which of the following functions are served by spacer and holding chambers in conjunction with pMDIs? I.Reduction in oropharyngeal deposition of drug II.Elimination of the "cold Freon effect" III.Improvement in lower respiratory tract deposition IV.Decrease in treatment time without sacrificing efficacy

Where in the ventilator circuit should a continuous jet nebulizer be placed to improve efficiency of aerosol delivery?

When administering aerosol therapy to a pediatric patient,which of the following conditions can affect aerosol deposition? I.Airway diameter II.Respiratory rate III.Body weight IV.Nasal breathing