Question 1

Which oxygen delivery method is most helpful for patients with obstructive sleep apnea?

Accepted Answer

Continuous positive airway pressure (CPAP)is oxygen delivered with pressure above atmospheric pressure.CPAP may be used to improve oxygenation for patients in whom the usual means of oxygen delivery are not effective and patients with obstructive sleep apnea.

Question 2

Which device is most commonly used with high-flow oxygen systems?

Accepted Answer

The Venturi mask is a common method of delivering high-flow oxygen concentrations from 24% to 50%.This mask operates via the Venturi principle,which provides for a mixing of 100% oxygen and entrained ambient air.

Question 3

Which term refers to breathing through a ventilator circuit without assistance?

Accepted Answer

Spontaneous breathing is breathing through the ventilator circuit without assistance.The other terms refer to modes of assisted ventilation.

Question 4

Which of the following is used to ensure mandatory minute ventilation?

Accepted Answer

A minimal level of minute ventilation will be achieved through ventilator-assisted breaths,usually accomplished by using pressure support ventilation

Question 5

Which location is included in the scope of a respiratory therapist?

Accepted Answer

The scope of the respiratory therapist has become wherever the patients with respiratory disease present.They are now practicing in hospitals,long-term care,pulmonary rehabilitation,patients' homes,and pulmonary physician offices.

Question 6

When may humidification therapy be indicated?

Accepted Answer

Humidification therapy is indicated in the presence of thick,tenacious secretions and when an artificial airway is in place.Artificial airways,such as endotracheal and tracheostomy tubes,bypass the normal humidification system; therefore,supplementation is essential.

Question 7

Which of the following is most cost effective and strictly used to deliver medication?

Accepted Answer

The metered-dose inhaler (MDI)is strictly used for medication delivery.It is a form of aerosol therapy similar to the small-volume nebulizer (SVN).

Question 8

Which is a serious concern when portable oxygen is prescribed?

Accepted Answer

A discussion of the concerns for safety such as not cooking with a gas stove and not smoking or having anyone smoke around the patient should be done before leaving the hospital.In addition,the patient should realize that the prescribed amount of oxygen should not be tampered with unless ordered by the doctor.

Question 9

Which aspect of a patient is especially important to evaluate when a nasal cannula is used?

Accepted Answer

Skin integrity,especially behind the ears,needs to be evaluated because the pressure of the cannula can cause skin breakdown.At times,patients will pull on the cannula or take off the oxygen.It is important to check for skin breakdown behind the ears,especially if the patient is not able to communicate.

Question 10

Which device has become more popular over the past 20 years for supporting patients with Duchenne muscular dystrophy and cystic fibrosis?

Accepted Answer

Noninvasive mechanical ventilation (NIMV)has been shown to prolong life and eliminate the need for tracheostomy in patients with Duchenne muscular dystrophy needing ventilation.It may also reduce the respiratory muscle work of breathing and improve gas exchange in patients with cystic fibrosis.

Question 11

Which device is often used to deliver low-flow oxygen?

Accepted Answer

The nasal cannula (also called nasal prongs)is one of the most common low-flow devices encountered because of its low expense and high patient compliance.

Question 12

Which term describes the speed at which a ventilator breath is delivered?

Accepted Answer

Flow rate is the speed at which the ventilator breath is delivered.This parameter is usually measured in liters per minute.

Question 13

Compared with standard ventilator treatment without waking patients for therapy,which of the following can be achieved with early physical therapy in patients on mechanical ventilation?

Accepted Answer

There is now evidence of support for early physical and occupational therapy by giving sedation breaks and rousing patients to exercise.This has been shown to result in better functional outcomes at discharge,fewer ventilator days,and fewer days of delirium compared with standard ventilator treatment without waking patients for therapy.

Question 14

Which is an appropriate purpose of oxygen therapy?

Accepted Answer

The purpose of oxygen therapy is to treat and prevent hypoxemia,excessive work of breathing,and excessive myocardial work.

Question 15

Which alarm sounds most commonly when a ventilated patient is receiving physical therapy?

Accepted Answer

The high-pressure alarm is the one that sounds most commonly when the patient is receiving physical therapy.It indicates that more than the preset pressure is being needed to deliver the volume of ventilation

Question 16

Which should be avoided with patients on mechanical ventilation?

Accepted Answer

Strong resistance exercise should be avoided with patients on mechanical ventilation because they may hold their breath and perform a Valsalva maneuver,which will cause increased circuit pressure to deliver the tidal volume to the patient.Motion exercises are acceptable if dictated by the physician.

Question 17

Which cost-intensive oxygen delivery method has been shown to improve exercise tolerance in patients with asthma and COPD?

Accepted Answer

Heliox has been shown to improve exercise tolerance in patients with asthma and COPD who have upper airway obstruction,inflammation,and increased mucus secretions.

Question 18

What is the normal range of the partial pressure of oxygen as measured by arterial blood gas analysis?

Accepted Answer

Oxygen exerts a partial pressure of 159.6 mm Hg at sea level (dry air)and approximately 97 mm Hg in arterial blood.The normal range as measured by arterial blood gas analysis is 80 to 100 mm Hg.

Question 19

Which is most specifically indicated to treat signs of respiratory failure or chronic respiratory failure in patients with severe COPD?

Accepted Answer

Indications for BiPAP include signs of respiratory failure or chronic respiratory failure in patients with severe COPD,increased work of breathing,patients with neuromusculoskeletal impairments that limit ventilation and thus oxygenation,and sleep-disordered breathing.

Question 20

Which of the following is a visual or audio feedback device that encourages slow,deep inspiration?

Accepted Answer

Incentive spirometry,also called sustained maximum inspiration,is performed frequently,up to every hour,and its purpose is to treat and prevent atelectasis and pneumonia,especially in postoperative patients who are considered at high risk for postoperative complications

Quiz 43: Respiratory Care Practice Review