–>  You can find the answers to these questions by Clicking Here  <–
 

1.  How long would you immerse respiratory care equipment in alkaline glutaraldehyde (Cidex) in order to achieve sterilization (room temperature)?

 

A. 10-20 minutes
B. 10 hours
C. 2 hours
D. 24 hours

 

2.  Which of the following must be handled as infectious medical wastes?

 

A. flammable materials
B. used sharps
C. toxic chemicals
D. used radioactive agents

 

3.  Which of the following types of equipment processing would you recommend for a reusable device that was introduced into a patient’s bloodstream?

 

A. high-level disinfection
B. sterilization
C. low-level disinfection
D. detergent washing

 

4.  Which of the following could occur if equipment is not thoroughly dried after cleaning?

 

A. impaired pasteurization
B. infectious aerosol production
C. toxin reation with EtO
D. damage to equipment

 

5.  The label of a disinfectant indicates that it does NOT inactivate or kill either Mycobacterium tuberculosis or bacterial spores. What class of disinfectant is this?

 

A. surface active
B. low-level
C. intermediate-level
D. high-level

 

6.  Which of the following is the appropriate action in handling used breathing circuits gathered from ICU ventilator patients for processing?

 

A. as noninfectious waste, they should be separated from infectious wastes
B. they should be bagged, transported and processed as infectious waste
C. they should be completely disassembled at the bedside before bagging
D. they should be placed in the ICU wash sink and rinsed out with hot water

 

7.  In addition to standard precautions, which of the following transmission-based precautions would you recommend for an elderly patient admitted to a medical unit with severe viral influenza?

 

A. contact precautions
B. droplet precautions
C. airborne precautions
D. universal precautions
8.  Cultures taken from a Wright respirometer that has been used in the intensive care unit to monitor several patients indicate that it is contaminated. The most practical way to prevent cross-contamination would be to:

 

A. provide a new Wright respirometer for each patient
B. sterilize the respirometer after each use
C. replace the respirometer with a water-sealed spirometer
D. use a disposable HEPA filter and one-way valve for each patient

 

9.  A nondisposable tracheal airway cannot under go steam autoclaving but needs to be processed for re-use on other patients. Which of the following is an acceptable alternative for processing this device?

 

A. pasteurization at 63 °C for 30 minutes
B. exposure to micowave radiation for 20-30 min
C. surface disinfection with 70% ethyl alcohol
D. placement in a hot air (375 °F) chamber for 15 min

 

10.  A patient who was hospitalized with ARDS recently traveled to an area with a documented outbreak of a severe atypical respiratory infection of unknown origin. Which of the following infection control precautions should you recommend for this patient?

 

Airborne          Contact            Droplet
A.         Yes                  No                   Yes
B.         Yes                  Yes                  Yes
C.         No                   Yes                  Yes
D.         Yes                  Yes                  No

 

A. A
B. B
C. C
D. D

 

11.  You hospital requires all liquid infectious waste be transported and processed centrally before disposal. To transport several full suction collection bottles from ICU for processing you would:

 

A. place sealed bottles in a puncture-resistant biohazard bag
B. transfer all bottle contents into a large secondary carted vessel
C. place sealed bottles into a closable leak-proof biohazard container
D. seal and label each bottle and transport them one at a time

 

12.  To minimize the likelihood of a refillable large volume nebulizer spreading infection, you would:

 

A. close the air-entrainment port (set to 100% O2)
B. discard remaining reservoir fluid before refilling
C. drain all tubing condensate back into the reservoir
D. avoid heating the nebulizer’s fluid reservoir

 

13.  A patient with a tracheostomy has 40% O2 and aerosol delivered by a trach mask. If the patient develops an Escherichia coli infection of the stoma and airways, the most likely source is:

 

A. a factory-contaminated tracheostomy mask
B. nebulizer water used past its expiration date
C. inadequate hand washing by caregivers
D. the patient’s own upper airway bacteria
–>  You can find the answers to these questions by Clicking Here  <–
 
14.  Reusable equipment from a patient with an active M. tuberculosis infection was soaked for one hour in an iodophor germicide solution. Based on this information, which of the following is true?

 

A. it can now be returned to patient use
B. the equipment has been damaged by the solution
C. it should be immediately rinsed with sterile water
D. it has not been correctly disinfected

 

15.  Which of the following types of equipment processing would you recommend for a reusable device that was in contact with a patient’s mucous membranes?

 

A. high-level disinfection
B. sterilization
C. low-level disinfection
D. detergent washing

 

16.  When using a mechanical respirometer to measure the expired minute volume of multiple ICU patients, which of the following is the best way to protect them against cross-contamination?

 

A. sterilize the respirometer with ethylene oxide gas between each patient use
B. use a short segment of flex tubing to separate the patients from the respirometer
C. use a disposable one-way breathing valve and bacterial filter on each patient
D. disinfect the respirometer surface with isopropyl alcohol between each patient use

 

17.  You need to transport several contaminated nondisposable ventilator circuits from a patient unit to an equipment processing area. You would:

 

A. wash and disinfect the circuits at point of origin before transporting
B. bag the circuits, then transport on a cleaned and sanitized cart
C. transport the circuits in leak- and puncture-resistant biohazard bags
D. place circuits in biohazard bags, then transport in a closed, rigid container

 

18.  Instructions for an electrically-powered respirometer clearly specify that it cannot be immersed in water. What procedure would you recommend to decontaminate this piece of equipment before further processing?

 

A. a quick wash in a flurocarbon-based liquid
B. microwave heating at low energy for 3 minutes
C. surface disinfection with 70% alcohol
D. immersion in 2% glutaraldehyde for 10 minutes

 

19.  Which of the following type of respiratory care equipment presents the greatest potential for spreading nosocomial infections?

 

A. heated cascade humidifiers
B. large reservoir jet nebulizers
C. unheated oxygen humidifiers
D. bag-mask resuscitators

 

20.  To enhance the ability of a detergent to disinfect equipment, you would

 

A. increase the detergent exposure time
B. add a germicide to the detergent
C. increase the detergent concentration
D. heat the detergent solution to 70 °C

 

21.  You are preparing to suction a patient and finds a partially empty but capped one-liter bottle of sterile saline for irrigation at the patient’s bedside. Which of the following statements is relevant to this situation?

 

A. saline should not be used as a rinse solution
B. at least 3% NaCl should be used as a rinse solution
C. only “Saline for Injection” should be used as a rinse solution
D. The saline may be used if it was opened within the last 24 hours

 

22.  Which of the following is an acceptable way to dispose of liquid biohazardous/infectious waste, such as blood or body fluids?

 

A. place in a biohazard bag for disposal
B. process in hot water cycle (pasteurization)
C. steam autoclave using the liquid cycle
D. transport in containers to sanitary landfill


23.  Which of the following is a common cause for contamination of large reservoir jet nebulizers?

 

A. obstruction of air-entrainment port
B. delivery of high O2 concentrations
C. introduction of non-sterile water
D. daily replacement of the nebulizer

 

24.  Solid infectious wastes can be disposed of by

 

A. pouring down utility sink
B. incinerating and burying ashes
C. treating with lye (NaOH)
D. heating to 160 °F

 

25.  During a routine pulmonary function test, a patient with tuberculosis coughs into a spirometer. Which of the following should be done to sterilize the nondisposable rubber tubing set before it is used again?

 

A. send the set out for steam autoclaving
B. wipe the set down with isopropyl alcohol
C. send the set out for pasteurization
D. immerse the set in glutaraldehyde

 

26.  Which of the following is an acceptable way to dispose of liquid biohazardous/infectious waste, such as blood or body fluids?

 

A. place in a biohazard bag for disposal
B. process in hot water cycle (pasteurization)
C. transport in containers to sanitary landfill
D. pour into sanitary sewer (drain or toilet)

 

27.  Which of the following can help prevent cross-contamination of a portable electronic spirometer used for measuring forced vital capacity?

 

A. rinsing the spirometer in a high-level disinfectant between patients
B. running the spirometer through a pasteurization cycle between patients
C. place a two-way HEPA filter between the device and the patient
D. running the spirometer through an autoclave cycle between patients

 

28.  When administering a drug aerosol treatment to a patient under Contact Precautions due to an enteric bacterial infection, which of the following should be worn?

 

Mask   Gloves Gown  Goggles
A.          Yes       Yes      No       Yes
B.          Yes       No       Yes      Yes
C.           No       Yes      Yes      No
D.          Yes      Yes      Yes      Yes

 

A. A
B. B
C. C
D. D

 

29.  Airborne precautions are indicated for which of the following?

 

A. tuberculosis patient
B. hepatitis patient
C. patient with an open wound
D. cancer patient

 

30.  CDC standard precautions require

 

A. disposable gown for all patient contacts
B. surgical mask for airborne isolation
C. sterile gloves for all patient contacts
D. eye protection for blood splashes

 

31.  Which of the articles listed would NOT require aeration after ethylene oxide (ETO) sterilization?

 

A. a plastic manual resuscitator
B. a stainless steel laryngoscope blade
C. a rubber anesthesia bag
D. a noninvasive ventilator circuit

 

32.  You suspect that a number of patients under your care have developed a similar nosocomial infection. To whom should you report your suspicions?

 

A. director of central supply service
B. infection control nurse or epidemiologist
C. medical director of intensive care
D. administrative director of nursing service

 

33.  Which of the following chemical agents would you select to disinfect a reusable nasal mask used for noninvasive ventilation?

 

A. quaternary ammonium
B. peracetic acid
C. isopropyl alcohol
D. iodophor

 

34.  Which type of disinfection inactivates all microorganisms except bacterial spores?

 

A. surface active
B. low-level
C. intermediate-level
D. high-level

 

35.  An increase in the number of nosocomial infections is noted among patients receiving respiratory therapy in the intensive care unit. Which of the following would be the LEAST likely source of the infections?

 

A. the medical personnel
B. the patients
C. unit-dose medications
D. reusable circuits

 

36.  Which of the following types of equipment processing would you recommend for a reusable device that only contacted a patient’s intact skin?

 

A. high-level disinfection
B. sterilization
C. low-level disinfection
D. soap and water wash

 

37.  During a procedure, a suction collection bottle fills with fluid, interrupting the vacuum pressure. No replacement is available. Which of the following would be the proper way to dispose of the contents and restore vacuum?

 

A. pour the bottle contents into a biohazard bag
B. remove the bottle and seal it with a stopper
C. pour the bottle contents down a utility sink
D. send the bottle to central supply for processing

 

–>  You can find the answers to these questions by Clicking Here  <–