What is the primary goal of humidity therapy?
A. decrease airway reactivity to cold
B. Maintain normal physiologic conditions
C. Deliver Drugs to the airway
D, Reduce upper airway inflammation

What is the preferred method for delivering bronchodilators to spontaneously breathing and intubated, ventilated patients?
(A) DPI
(B) SVN
(C) MDI
(D) hand-bulb atomizer

Which of the following are considered therapeutic gases? (Select ALL that apply)
(1) O2
(2) O2-NO
(3) O2-He
(4) N2O

Which of the following has a direct relationship with the degree to which atelectasis can present itself with a postoperative patient?
(A) spontaneous respiratory rate
(B) bradycardia
(C) hypocapnia
(D) hypothermia

In theory, how does PEP help to move secretions into the larger airways
(1) filling underaerated segments through collateral ventilation
(2) preventing airway collapse during expiration
(3) causing bronchodilation during inspiration

Which of the following inspired conditions should be maintained when delivering medical gases to the nose or mouth?
A) 50% RH at 20 to 22 C
B) 100% RH at 20 to 22 C
C) 80% RH at 28 to 32 C
D) 100% RH at 32 to 35 C

Most of the spray generated by the majority of MDIs consists of which of the following?
(A) Active Drug
(B) Propellant
(C) Surfactant
(D) Water solution

During inspection of the shoulder of a compressed gas cylinder, you note a plus sign (+) next to the test date. This indicates what about the cylinder
(A) Made from spun aluminum, not steel
(B) Requires a 10-year DOT inspection
(C) Filled to 10% above its service pressure
(D) High coefficient of elastic expansion

For patients receiving incentive spirometry, what is the minimum number of sustained maximal inspirations (SMIs) per hour that you would recommend?
(A) 25 to 30
(B) 15 to 20
(C) 5 to 10
(D) 1 to 2

Which of the following best describes PEP therapy?
(A) expiration against variable flow resistance
(B) expiration against fixed threshold resistance
(C) Inspiration against fixed threshold resistance
(D) inspiration against variable flow resistance

Indications for warming inspired gases include which of the following? (pick all that apply)
(1) Treating a patient whose airways are reactive to cold
(2) Providing humidification when the upper airway is bypassed
(3) Treating a patient with a low body temperature (hypothermia)
(4) Reducing upper airway inflammation or swelling

Which of the following are beneficial effects of using a holding chamber with a metered dose inhaler?
Pick ALL that apply.
(1) reduction in oropharyngeal aerosol deposition
(2) decrease in need for hand-breath coordination
(3) elimination of medication waste

The pressure of O2 or air in a bulk supply system is reduced to what standard working pressure
(A) 10 psig
(B) 14 psig
(C) 25 psig
(D) 50 psig

Lung expansion methods that increase the transpulmonary pressure gradients by increasing alveolar pressure include which of the following?
(1) Incentive spirometry
(2) Positive end-expiration pressure therapy
(3) Intermittent positive pressure breathing
(4) Expiratory positive airway pressure

Which of the following would indicate a successful outcome for postural drainage therapy?
(1) decreased sputum production
(2) normalization in ABGs
(3) improved breath sounds
(4) improvement in chest radiograph

What is the typical water vapor output of an unheated bubble humidifier?
(A) 5 to 10 mg/L
(B) 10 to 15 mg/L
(C) 15 to 20 mg/L
(D) 20 to 25 mg/L

Exhalation into which device can result in loss of drug delivery?
(A) SVN
(B) MDI
(C) DPI
(D) USN

What is the pin index hole position for O2?
(A) 1 and 5
(B) 2 and 5
(C) 1 and 6
(D) 4 and 6

How do all modes of lung expansion therapy aid lung expansion?
(A) Increasing transpulmonary pressure gradient
(B) Decreasing transthoracic pressure gradient
(C) Increasing pressure in the pleural space
(D) Decreasing pressure in the alveoli

Which of the following are considered airway clearance therapies
(1) postural drainage and percussion
(2) incentive spirometry
(3) positive airway pressure
(4) percussion, vibration, and oscillation

All mist tents prevent CO2 buildup by what process?
(A) recirculating the gas
(B) providing high gas flows
(C) Using CO2 absorbers
(D) Cooling the gas

A physician has ordered antiviral agent ribavirin (virazole) to be administered by aerosol to an infant with bronchiolitis. Which of the following devices would you recommend in this situation?
(A) hydrodynamic nebulizer
(B) small particle aerosol generator
(C) Ultrasonic nebulizer
(D) Large-volume heated jet nebulizer

Which device is used to reduce the pressure and control the flow of a compressed medical device?
(A) Bourdon gauge
(B) Regulator
(C) Flowmeter
(D) Reducing valve

Persistent breathing at small tidal volumes typically results in which of the following?
(A) reabsorption atelectasis
(B) spontaneous pneumothorax
(C) compression atelectasis
(D) respiratory alkalosis

Which of the following are goals of airway clearance therapy?
(1) help reverse the underlying disease process
(2) help mobilize retained secretion
(3) improve pulmonary gas exchange
(4) reduce the work of breathing