CCRN PRACTICE EXAM PREP TEST BANK
CCRN PRACTICE EXAM PREP TEST BANK NEWEST 2026/2027 ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) WITH DETAILED RATIONALES |ALREADY GRADED A+||BRAND NEW
VERSION!!
A 65-year-old woman reports severe dyspnea 2 days after abdominal surgery. She
is transferred to the critical care unit. On 5 L of oxygen by nasal cannula, her
arterial blood gases are as follows:
pH 7.39
PaCO2 35 mm Hg
HCO3 19 mEq/L
PaO2 40 mm Hg
Arterial oxygen saturation 75%
Why does this patient have hypoxemia without hypercapnia?
A.
Because carbon dioxide is more diffusible than oxygen
B.
Because carbon dioxide has more driving pressure
C.
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, CCRN PRACTICE EXAM PREP TEST BANK
Because carbon dioxide is less diffusible than oxygen
D.
Because carbon dioxide excretion by the kidney is increased - Correct Answer-
Because carbon dioxide is more diffusible than oxygen
Carbon dioxide is 20 times more diffusible than oxygen. In conditions that affect
diffusion but do not affect ventilation, expect the PaO2 to be decreased and the
PaCO2 to be normal (or decreased in hyperventilation, as in this patient). If
ventilation were affected, such as if this patient were fatiguing, the PaCO2 then
would increase. Driving pressure is the fraction of the gas in inspired air multiplied
by the barometric pressure. Because carbon dioxide is ~0.5% of inspired air, the
driving pressure would be very low. The kidney eliminates bicarbonate and
hydrogen ions, but the lungs eliminate carbon dioxide.
A 55-year-old patient has headache, nuchal rigidity, photophobia, and positive
Kernig's and Brudzinski's signs. These are consistent with which of the following?
A.
Intracranial hemorrhage
B.
Subarachnoid hemorrhage
C.
Epidural hemorrhage
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, CCRN PRACTICE EXAM PREP TEST BANK
D.
Subdural hemorrhage - Correct Answer-Subarachnoid hemorrhage
When there is bleeding from an aneurysm, that blood irritates the meninges. The
clinical presentation is very similar to meningitis. This clinical presentation is not
consistent with intracranial, epidural, or subdural bleeding because the blood is
not in contact with the meninges in those situations.
An extra heart sound preceding S1 is most likely an S4 if the stethoscope's:
A.
diaphragm is over the apex.
B.
bell is over the aortic area.
C.
diaphragm is over the aortic area.
D.
bell is over the apex. - Correct Answer-bell is over the apex.
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, CCRN PRACTICE EXAM PREP TEST BANK
S3 and S4 are low pitched, so choose options with the bell being used. S3 and S4
are heard at the mitral area (i.e., apex) unless the right ventricular is affected, and
then they are heard in the tricuspid area.
Low-Pitched is best heard with Bell
The charge nurse on the 7 pm to 7 am shift was asked to assist a group of nurses
to resolve their conflict so that their two opposing goals are discarded and new
goals are adopted. This is an example of which of the following?
A.
Smoothing of conflict
B.
Facilitating collaboration
C.
Encouraging compromise
D.
Democratic approach - Correct Answer-Facilitating collaboration
This is an example of facilitating collaboration. The nurse is, in essence, acting as
mediator to assist these two groups in developing common goals. In smoothing,
you would try to reduce the emotional stress of the conflict, but the conflict really
4|Page
CCRN PRACTICE EXAM PREP TEST BANK NEWEST 2026/2027 ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) WITH DETAILED RATIONALES |ALREADY GRADED A+||BRAND NEW
VERSION!!
A 65-year-old woman reports severe dyspnea 2 days after abdominal surgery. She
is transferred to the critical care unit. On 5 L of oxygen by nasal cannula, her
arterial blood gases are as follows:
pH 7.39
PaCO2 35 mm Hg
HCO3 19 mEq/L
PaO2 40 mm Hg
Arterial oxygen saturation 75%
Why does this patient have hypoxemia without hypercapnia?
A.
Because carbon dioxide is more diffusible than oxygen
B.
Because carbon dioxide has more driving pressure
C.
1|Page
, CCRN PRACTICE EXAM PREP TEST BANK
Because carbon dioxide is less diffusible than oxygen
D.
Because carbon dioxide excretion by the kidney is increased - Correct Answer-
Because carbon dioxide is more diffusible than oxygen
Carbon dioxide is 20 times more diffusible than oxygen. In conditions that affect
diffusion but do not affect ventilation, expect the PaO2 to be decreased and the
PaCO2 to be normal (or decreased in hyperventilation, as in this patient). If
ventilation were affected, such as if this patient were fatiguing, the PaCO2 then
would increase. Driving pressure is the fraction of the gas in inspired air multiplied
by the barometric pressure. Because carbon dioxide is ~0.5% of inspired air, the
driving pressure would be very low. The kidney eliminates bicarbonate and
hydrogen ions, but the lungs eliminate carbon dioxide.
A 55-year-old patient has headache, nuchal rigidity, photophobia, and positive
Kernig's and Brudzinski's signs. These are consistent with which of the following?
A.
Intracranial hemorrhage
B.
Subarachnoid hemorrhage
C.
Epidural hemorrhage
2|Page
, CCRN PRACTICE EXAM PREP TEST BANK
D.
Subdural hemorrhage - Correct Answer-Subarachnoid hemorrhage
When there is bleeding from an aneurysm, that blood irritates the meninges. The
clinical presentation is very similar to meningitis. This clinical presentation is not
consistent with intracranial, epidural, or subdural bleeding because the blood is
not in contact with the meninges in those situations.
An extra heart sound preceding S1 is most likely an S4 if the stethoscope's:
A.
diaphragm is over the apex.
B.
bell is over the aortic area.
C.
diaphragm is over the aortic area.
D.
bell is over the apex. - Correct Answer-bell is over the apex.
3|Page
, CCRN PRACTICE EXAM PREP TEST BANK
S3 and S4 are low pitched, so choose options with the bell being used. S3 and S4
are heard at the mitral area (i.e., apex) unless the right ventricular is affected, and
then they are heard in the tricuspid area.
Low-Pitched is best heard with Bell
The charge nurse on the 7 pm to 7 am shift was asked to assist a group of nurses
to resolve their conflict so that their two opposing goals are discarded and new
goals are adopted. This is an example of which of the following?
A.
Smoothing of conflict
B.
Facilitating collaboration
C.
Encouraging compromise
D.
Democratic approach - Correct Answer-Facilitating collaboration
This is an example of facilitating collaboration. The nurse is, in essence, acting as
mediator to assist these two groups in developing common goals. In smoothing,
you would try to reduce the emotional stress of the conflict, but the conflict really
4|Page
