CRT Practice Exam II Questions and
answers | With complete solution
Newest 2024/25
1. All of the following are true statements regarding the use of an oropharyngeal airway
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
EXCEPT:
ll
a. An oropharyngeal airway that is too large may obstruct the airway
ll ll ll ll ll ll ll ll ll ll ll
b. An oropharyngeal airway is contraindicated for use in unconscious patients
ll ll ll ll ll ll ll ll ll ll
c. An oropharyngeal airway may induce gagging and vomiting
ll ll ll ll ll ll ll ll
d. An oropharyngeal airway that is too small may obstruct the airway - Correct Answers
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
ANS: B.
ll ll ll
EX: An oropharyngeal airway is NOT contraindicated for use in unconscious patients.
ll ll ll ll ll ll ll ll ll ll ll
Airway is not contraindicated for use in an unconscious patient, only an alert patient. The
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
distal tip of the oropharyngeal airway may irritate the hypopharyngeal area and induce
ll ll ll ll ll ll ll ll ll ll ll ll ll
gagging and vomiting. If an ororpharyngeal airway is too large the distal tip may obstruct
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
the hypopharyngeal area, resulting in airway obstruction. If an oropharyngeal airway is too
ll ll ll ll ll ll ll ll ll ll ll ll ll
small the distal tip may push the tongue the back of the throat, resulting in airway
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
obstruction.
ll
10 The following measurements were obtained from a 59-year-old patient:
ll ll ll ll ll ll ll ll ll ll
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?
ll ll ll ll ll ll ll ll ll ll ll ll ll
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
ll ll ll ll ll ll ll ll ll ll ll
EX: The formula for calculating Total Compliance is:
ll ll ll ll ll ll ll
EX: orthopnea is a condition in which the patient feels discomfort in breathing while lying
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
down and must sit upright to relieve the difficulty in breathing. Tachypnea means a rapid
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
respiratory rate. Platypnea mean discomfort in breathing while in the upright or seated
ll ll ll ll ll ll ll ll ll ll ll ll ll
position. Dyspnea is a generic term that simply means difficulty in breathing. Dyspnea may
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
I may not occur in any body position.
ll ll ll ll ll ll ll ll
ll 104 During the aerosol therapy with a metered dose inhaler (MDI) without a spacer, the
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
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:
ll ll ll ll ll ll ll ll ll
A. Help with the ordination of canister actuation
ll ll ll ll ll ll ll
B. reduce the likelihood that the drug will be deposited at the back of the throat
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
C. enhance particle stability
ll ll ll
D. deliver a smaller sized particle to the deeper recesses of the lungs - Correct Answers
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
ANS: B. _ reduce the likelihood that the drug will be deposited at the back of the throat
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
EX: my holding the mouthpiece 1 inch away from the mouth there is an increase in the
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
distance between the aerosol in the back of the throat. This makes it more likely that the
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
aerosol particles will remain in the inspired gas and travel into the lungs instead of
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
depositing out in the back of the throat.
ll ll ll ll ll ll ll ll
ll 105 Ideally, a 1 - point calibration is performed on a blood gas analyzer:
ll ll ll ll ll ll ll ll ll ll ll ll ll
A. At least once every 50 blood gases
ll ll ll ll ll ll ll
B. at least once every 8 hours
ll ll ll ll ll ll
C. prior to each sample analysis
ll ll ll ll ll
, D. at least once in a 24 - hour period - Correct Answers ANS: C. - Prior to each sample
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
analysis
ll
EX:
ll 106A patient's PaO2 measured by blood gas analysis is to 255 mm HG. The blood gas
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
ll analyzer on which the sample is analyzed is calibrated to a PO2 of 150 mm HG. Which of
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
ll the following is the most acceptable action?
ll ll ll ll ll ll
A. The patient's value is accurate, reported to the physician
ll ll ll ll ll ll ll ll ll
B. correlate the accuracy of the value via tonometry
ll ll ll ll ll ll ll ll
C. recalibrate the blood gas analyzer to accommodate this unusual value
ll ll ll ll ll ll ll ll ll ll
D. reanalyze the blood gas sample on a different analyzer - Correct Answers ANS: C. -
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
recalibrate the blood gas analyzer to accommodate this unusual value
ll ll ll ll ll ll ll ll ll ll
EX: when the patient's PaO2 is considerably higher than the calibrated range of a blood
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
gas analyzer, the analyzer should be recalibrated to accommodate this unusual value
ll ll ll ll ll ll ll ll ll ll ll ll
(using "calibration override "function and high oil 100% oxygen standard gas).
ll ll ll ll ll ll ll ll ll ll ll
ll 107 Blood gas analyzer troubleshooting should be initiated when:
ll ll ll ll ll ll ll ll
A. The analyzer takes more than 30 seconds to complete its analysis
ll ll ll ll ll ll ll ll ll ll ll
B. quality control results are outside predefined acceptability limits
ll ll ll ll ll ll ll ll
C. an existing analyzer is replace
ll ll ll ll ll
D. calibration verification has not been completed - Correct Answers ANS: B. - quality
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
control results are outside predefined acceptability limits
ll ll ll ll ll ll ll
EX: troubleshooting should be indicated when quality control results are outside
ll ll ll ll ll ll ll ll ll ll
predefined acceptability limits. The remaining options do not decay a malfunction of the
ll ll ll ll ll ll ll ll ll ll ll ll ll
blood gas analyzer.
ll ll ll
ll 108 The most important aspect regarding quality control for blood gas analysis is that:
ll ll ll ll ll ll ll ll ll ll ll ll ll
A. The blood specimen is properly labeled, stored, and analyzed within an acceptable
ll ll ll ll ll ll ll ll ll ll ll ll
period of time
ll ll ll
B. the blood gas analyzer is functioning properly prior to patient sample analysis
ll ll ll ll ll ll ll ll ll ll ll ll
C. blood gas testing is carried out according to an established prison protocol
ll ll ll ll ll ll ll ll ll ll ll ll
D. calibration of the blood gas analyzer is carried out every 8 hours - Correct Answers
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
ANS: B. - the blood gas analyzer is functioning properly prior to patient sample analysis
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
EX: calibration, labeling and storing the blood specimen, and testing according to protocol
ll ll ll ll ll ll ll ll ll ll ll ll
are important considerations concerning blood gas analysis, however, they are of no
ll ll ll ll ll ll ll ll ll ll ll ll
consequence if the blood gas analyzer is not functioning properly prior to patient sample
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
analysis.
ll
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller STUVATE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.