CCRN adult EXAM A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERIFIED ANSWERS

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Exam Solution vc




CCRN Barrons 2026 A+ GRADE ASSURED COMPLETE SO vc vc vc vc vc vc vc




LUTIONS AND VERIFIED ANSWERS (F5E7D) vc vc vc vc




QUESTION 1 vc




Which of the following ventilator settings is most likely to decrease the work of breathin
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g? A assist-
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control clearYou selected. B pressure support doneYou did not select. C tidal volume D C
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PAP
ANSWER

Answer: B Pressure support senses the beginning of the patient's spontaneous inspiration and provides
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a set pressure to assist the inspiratory effort. The primary purpose of the ventilator settings listed in ch
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oices (A), (C), and (
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D) is not to decrease the work of breathing.
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QUESTION 2 vc




A patient with aortic regurgitation will have which of the following upon auscultation? S
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elect single answer choice. A a diastolic murmur, loudest at the fifth intercostal space, mi
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dclavicular a systolic murmur, loudest at the apex of the heart C a diastolic murmur, lou
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dest at the second intercostal space, right sternal border D a systolic murmur, loudest at
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the base of the heart
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ANSWER

Answer: C Aortic insufficiency (regurgitation) is the backflow of blood during the time when the aortic v
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alve should be closed. The aortic valve is closed during diastole; therefore, this patient has a diastolic m
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urmur. The aortic area of auscultation is at the base of the heart: the second intercostal space, right ster
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nal border.
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QUESTION 3 vc




A patient has acute kidney injury with fluid overload, and continuous renal replacement
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therapy (CRRT) has been ordered. Which of the following would indicate the need for CR
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,RT rather than intermittent hemodialysis? Select single answer choice. A hyperkalemia
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B. a MAP of 45 mmHg C acidosis D severe hypoxemia
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ANSWER

Answer: B Hemodynamic instability, such as hypotension, is the indication for CRRT since it does not ca
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use the rapid fluid shifts that are seen with intermittent hemodialysis. The remaining choices are not in
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dications for CRRT. vc vc




QUESTION 4 vc




Which of the following patients, who are all receiving mechanical ventilation, is most lik
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ely a candidate for a spontaneous awakening trial? Select single answer choice. A a patie
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nt who is receiving PRN morphine B a patient who is receiving a propofol infusion C a pa
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tient who is receiving 100% oxygen and 20 cm H2O pressure of PEEP D a patient who is
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receiving a vecuronium (Norcuron) infusion vc vc vc vc




ANSWER

Answer: B A spontaneous awakening trial should be considered for a patient who is receiving a continu
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ous infusion of a sedating drug and/or an analgesic drug and who meets the hemodynamic criteria. A pa
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tient who is receiving a propofol infusion is a potential candidate for a spontaneous awakening trial as l
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ong as the hemodynamic criteria are met. A patient who is receiving PRN morphine may be a candidate
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for a spontaneous breathing trial, but that patient does not require an infusion to be stopped in order to
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be awakened. The remaining 2 choices do not meet the criteria for performing either a spontaneous aw
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akening trial or a spontaneous breathing trial.
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QUESTION 5 vc




Cardiogenic shock secondary to left ventricular failure will generally result in: Select sin
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gle answer choice. A decreased afterload. B a narrow pulse pressure. C decreased preloa
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d. D a widening pulse pressure.
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ANSWER

Answer: B The systolic pressure decreases due to a drop in the cardiac output; however, the diastolic pr
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essure either stays the same or increases due to a compensatory increase in the systemic vascular resist
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ance. The remaining choices are not found in the presence of cardiogenic shock.
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QUESTION 6 vc




Massive atelectasis occurs in the presence of acute respiratory distress syndrome (ARDS
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). What are the 2 causes of the atelectasis that is typical of ARDS? Select single answer ch
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oice. A a surfactant deficiency and pulmonary edema B increased pulmonary vascular re
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sistance and increased pulmonary compliance C increased pulmonary compliance and p
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ulmonary edema D mucus plugs and bronchospasm vc vc vc vc vc vc




ANSWER

, Answer: A ARDS destroys Type II alveolar cells, which results in decreased surfactant production. ARDS
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also results in capillary leak at normal left-
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sided heart pressures, which results in pulmonary edema. Both a surfactant deficiency and pulmonary e
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dema lead to atelectasis. The remaining choices are not correct because increased pulmonary complianc
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e and mucus plugs are not features of ARDS.
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QUESTION 7 vc




A patient was admitted with an acute inferior wall STEMI. The physician advises the nurs
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e to monitor the patient for signs of right ventricular (RV) infarction. Which of the follow
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ing are signs of RV infarction? Select single answer choice. A S4 heart sound, lung crackle
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s B hypotension, flat neck veins C hypertension, a systolic murmur D distended neck vein
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s, clear lungs
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ANSWER

Answer: D If the RV contractility decreases, the pressure that is proximal to the right ventricle (which is
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the right atrial pressure) increases, resulting in distended neck veins. As the right heart fails, the left he
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art preload decreases, and the lungs are clear.
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QUESTION 8 vc




Which of the following is an effect of hypothermia? Select single answer choice. A a decre
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ase in the SaO2 B a decrease in the blood pressure C an increase in the heart rate D a shif
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t of the oxyhemoglobin dissociation curve to the left
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ANSWER

Answer: D Hypothermia shifts the oxyhemoglobin dissociation curve to the left, which inhibits the relea
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se of oxygen from hemoglobin, thereby resulting in a higher SaO2 than usual at the same PaO2. The rem
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aining choices are not related to hypothermia.
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QUESTION 9 vc




It is important for a nurse to identify the signs of respiratory depression during procedu
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ral sedation. Which of the following is a LATE sign of respiratory depression? Select singl
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e answer choice. A a cough B SpO2 88% C ETCO2 of 50 mmHg per waveform capnograph
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y D sedation
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ANSWER

Answer: B A pulse oximetry decrease is a late sign of respiratory depression. A cough is not indicative o
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f respiratory depression. An elevated ETCO2 per waveform capnography is an early sign of respiratory
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depression. Sedation precedes respiratory depression. vc vc vc vc




QUESTION 10 vc