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CRT Practice Exam II Questions and answers | With complete solution Newest 2024/25
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CRT Practice Exam II Questions and answers | With complete solution Newest 2024/25
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CRT Practice Exam II Questions andanswers | With complete solution
Newest 2024/25
1. All of the following are true statements regarding the use of an oropharyngeal airway
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EXCEPT:
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a. An oropharyngeal airway that is too large may obstruct the airway
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b. An oropharyngeal airway is contraindicated for use in unconscious patients
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c. An oropharyngeal airway may induce gagging and vomiting
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d. An oropharyngeal airway that is too small may obstruct the airway - Correct Answers
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ANS: B.
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EX: An oropharyngeal airway is NOT contraindicated for use in unconscious patients.
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Airway is not contraindicated for use in an unconscious patient, only an alert patient. The
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distal tip of the oropharyngeal airway may irritate the hypopharyngeal area and induce
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gagging and vomiting. If an ororpharyngeal airway is too large the distal tip may obstruct
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the hypopharyngeal area, resulting in airway obstruction. If an oropharyngeal airway is too
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small the distal tip may push the tongue the back of the throat, resulting in airway
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obstruction.
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10 The following measurements were obtained from a 59-year-old patient:
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Lung compliance: 0.2 L/cmH2O ll ll ll
Chest wall compliance: 0.2 L/cmH2O ll ll ll ll
Based on the above information, the Total Compliance would be which of the following?
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A. 10 L/cmH2O ll ll
B. 20 L/cmH2O ll ll
C. 0.2 L/cmH2O ll ll
D. 0.1 L/cmH2O - Correct Answers ANS: D
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EX: The formula for calculating Total Compliance is:
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(1/CL) + (1/CW) = 1/CL-CW
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(1/0.2) + (1/0.2) = 1/CL-CW 5+5 = 1/CL-CW 10 =1/CL -CW CL-CW = 1/10 CL-CW =0.1
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( Lung compliance and chest wall compliance
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Compliance is made up of lung compliance and chest compliance ll ll ll ll ll ll ll ll ll ll
--> 1/Ct = 1/Cl + 1/Ccwll ll ll ll ll ll
* i.e. Summation of elastance (=1/compliance)
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Thus, 1/Ct = 1/200 + 1/200 ll ll ll ll ll ll
--> Ct = 100 mLs/cmH2O ll ll ll ll
http://www.ld99.com/reference/old/text/2878909-501.html)
ll 100 A respiratory therapist is asked to instruct the patient recently diagnosed with asthma
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ll white performing and recording peak flow measurements are important. The therapist
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ll should tell the patient: ll ll ll
,1. Peak flow measurements help your doctor decide if your asthma is under control
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2. if the peak flow meter is used every day at home, you can find breathing problems even
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before you start to release or cough
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3. a drop in peak flow is a good way to recognize early signs of a coming asthma attack
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4. it helps to see how bad asthma is
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1, 2, and 3 only
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1 and 3 only
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1, 2, 3, and 4
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2 and 4 only - Correct Answers ANS: 1, 2, 3, and 4
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EX: all of the options listed are important reasons why and asked the patient should
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perform and record peak flow measurements.
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101 While reviewing the patient's chart prior to administering and albuterol (Proventil)
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treatment, the respiratory therapist notes that the patient is scheduled for pre—
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bronchodilator and post - bronchodilator spirometry in one hour. The respiratory therapist ll ll ll ll ll ll ll ll ll ll ll
should do which of the following?
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A. Tell the patient that he will get the treatment in one hour
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B. notify the pulmonary function laboratory of the conflict in therapy
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C. administer the treatment as ordered
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D. administer the treatment with normal saline only - Correct Answers ANS: B. - Notify the
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pulmonary function laboratory of the conflict in therapy
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EX: because the patient will receive a bronchodilator by the pulmonary function technician
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within an hours time span and the patient is scheduled to receive a bronchodilator now,
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there is a conflict in therapy. The practitioner needs to consult the pulmonary function lab
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and ascertain whether the patient should receive the albuterol treatment now and have the
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pulmonary function lab reschedule that spirometry test or whether the patient can wait one
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hour and received a bronchodilator during the spirometry tests. It would be inappropriate to
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perform any of the remaining options
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ll 102 A patient with allergic asthma has been prescribed albuterol (Proventil), nedocrmil
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ll sodium (Tilade), and flunisolide (Aerobid). The respiratory therapist should provide the
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ll patient with which of the following information? ll ll ll ll ll ll
1. Albuterol and nedocromil do not interact
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2. during an acute asthmatic attack, take flunisolide 1st
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3. nedocromil should not be taken during an asthmatic attack
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A. 1 in 2 only ll ll ll ll
B. 1, 2, and 3 ll ll ll ll
C. 2 and 3 only ll ll ll ll
,D. 1 and 3 only - Correct Answers ANS: 1 and 3 only: hero and nedocromil do not interact,
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nedocromil should not be taken during an asthmatic attack
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EX: 1. TRUE - based on manufacturer guidelines, albuterol and nedocromil do not have
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any ingredients that interact with each other. 2. FALSE - during an acute asthmatic attack,
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the patient needs to administer the fast acting bronchodilator (albuterol) 1st. Flunisolide is
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not a bronchodilator and will not really bronchospasm. 3. TRUE -nedocromil is a mast cell
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stabilizer only. It is not indicated for use during an acute asthmatic attack because it has no
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therapeutic value when the mast cells are in an acute unstable phase.
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ll 103While assessing a patient to determine if respiratory treatments are indicated, the
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ll patient tells the respiratory therapist that he becomes short of breath when lying down, but
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ll when he sits his breeding is fine. Which of the following terms should the therapist record in
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ll the patient's chart that would best describe the patient's statement?
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A. platypnea
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B. Tachypnea
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C. Dyspnea ll
D. orthopnea - Correct Answers ANS: D. - orthopnea
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EX: orthopnea is a condition in which the patient feels discomfort in breathing while lying
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down and must sit upright to relieve the difficulty in breathing. Tachypnea means a rapid
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respiratory rate. Platypnea mean discomfort in breathing while in the upright or seated
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position. Dyspnea is a generic term that simply means difficulty in breathing. Dyspnea may
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I may not occur in any body position.
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ll 104 During the aerosol therapy with a metered dose inhaler (MDI) without a spacer, the
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ll respiratory therapist instructs the patient to hold the mouthpiece approximately 1 inch ll ll ll ll ll ll ll ll ll ll ll
ll away from the mouth. The therapist explains that this will:
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A. Help with the ordination of canister actuation
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B. reduce the likelihood that the drug will be deposited at the back of the throat
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C. enhance particle stability
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D. deliver a smaller sized particle to the deeper recesses of the lungs - Correct Answers
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ANS: B. _ reduce the likelihood that the drug will be deposited at the back of the throat
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EX: my holding the mouthpiece 1 inch away from the mouth there is an increase in the
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distance between the aerosol in the back of the throat. This makes it more likely that the
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aerosol particles will remain in the inspired gas and travel into the lungs instead of
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depositing out in the back of the throat.
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ll 105 Ideally, a 1 - point calibration is performed on a blood gas analyzer:
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A. At least once every 50 blood gases
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B. at least once every 8 hours
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C. prior to each sample analysis
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, D. at least once in a 24 - hour period - Correct Answers ANS: C. - Prior to each sample
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analysis
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EX:
ll 106A patient's PaO2 measured by blood gas analysis is to 255 mm HG. The blood gas
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ll analyzer on which the sample is analyzed is calibrated to a PO2 of 150 mm HG. Which of
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ll the following is the most acceptable action?
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A. The patient's value is accurate, reported to the physician
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B. correlate the accuracy of the value via tonometry
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C. recalibrate the blood gas analyzer to accommodate this unusual value
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D. reanalyze the blood gas sample on a different analyzer - Correct Answers ANS: C. -
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recalibrate the blood gas analyzer to accommodate this unusual value
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EX: when the patient's PaO2 is considerably higher than the calibrated range of a blood
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gas analyzer, the analyzer should be recalibrated to accommodate this unusual value
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(using "calibration override "function and high oil 100% oxygen standard gas).
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ll 107 Blood gas analyzer troubleshooting should be initiated when:
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A. The analyzer takes more than 30 seconds to complete its analysis
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B. quality control results are outside predefined acceptability limits
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C. an existing analyzer is replace
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D. calibration verification has not been completed - Correct Answers ANS: B. - quality
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control results are outside predefined acceptability limits
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EX: troubleshooting should be indicated when quality control results are outside
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predefined acceptability limits. The remaining options do not decay a malfunction of the
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blood gas analyzer.
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ll 108 The most important aspect regarding quality control for blood gas analysis is that:
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A. The blood specimen is properly labeled, stored, and analyzed within an acceptable
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period of time
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B. the blood gas analyzer is functioning properly prior to patient sample analysis
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C. blood gas testing is carried out according to an established prison protocol
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D. calibration of the blood gas analyzer is carried out every 8 hours - Correct Answers
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ANS: B. - the blood gas analyzer is functioning properly prior to patient sample analysis
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EX: calibration, labeling and storing the blood specimen, and testing according to protocol
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are important considerations concerning blood gas analysis, however, they are of no
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consequence if the blood gas analyzer is not functioning properly prior to patient sample
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analysis.
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