CCRN questions with Correct Answers
UPDATED 2025
A patient is admitted complaining of chest pain and dizziness. A second-degree
AV heart block, Type ll is noted on the ECG. This is most likely the result of
occlusion to which coronary artery?
left circumflex
left anterior descending
Right coronary artery
posterior descending - ANSWER-Right coronary artery
Recall that the RCA is the dominant supply to the AV node in 90% of the
population. You would therefore most likely observe ST changes in leads II, III
and AVF.
The nurse knows that which of the following is contraindicated for a patient
requiring Intra-aortic balloon pump?
ventricular aneurysm
aortic valve insufficiency
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,ventricular septal defect
mitral valve regurgitation - ANSWER-aortic valve insufficiency
Recall the anatomy of the heart valves and the direction and flow of blood.
The nurse is performing a 12-lead EKG for a patient having chest pain. The nurse
knows that lead V4 is placed in which of the following areas:
4th intercostal space, right sternal border
5th intercostal space, left sternal border
5th intercostal space, mid clavicular line
5th intercostal space, mid axillary line - ANSWER-5th intercostal space, mid
clavicular line
A patient is admitted with complaints of severe chest pain. ST elevation in leads
V3-V4 is seen on the ECG. During the PCI procedure, a stent was placed to the
LAD. 4 hours later the patients urine output is oliguric and crackles are auscultated
bilaterally. Which of the following hemodynamic profiles would the nurse expect:
CO: 5.1 BP:84/52 SVR:1100 PAP:31/12
CO: 6.7 BP: 92/62 SVR:510 PAP:17/5
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,CO: 2.9 BP:84/57 SVR:655 PAP:21/15
CO:3.6 BP:83/49 SVR:2180 PAP:42/25 - ANSWER-CO:3.6 BP:83/49 SVR:2180
PAP:42/25
This patient is presenting with an MI to the anterior/septal wall. First recall the
normal values for these parameters: CO = 4-8L/min. SVR= 700-1500
dynes/sec/cm-5. PAP= 25/10. (You MUST memorize these!) Then, recall that
conditions causing low SVR (vasodilation) generally involve septic shock,
anaphylaxis, or neurogenic shock. Elevated SVR (vasoconstriction) generally
occurs due to hypovolemia, low cardiac output, or cardiogenic shock. PA systolic
pressures generally reflect lung function, and PA diastolic pressures generally
reflect heart (left-sided) function.
Which of the following 12-lead ECG changes should be expected in a patient with
acute coronary syndrome with inferior wall involvement?
ST segment elevation in leads V4 - V6 and deeply inverted T waves in I and aVL
ST segment elevation in leads Il, Ill and all the precordial leads
ST segment elevation in leads II, III and aVF
ST segment depression and T wave elevation in leads Il, Ill and aVL - ANSWER-
ST segment elevation in leads II, III and aVF
Memorize the lead to vessel correlations: Leads I, aVL, V5, V6 = Lateral Wall =
Left Circumflex Artery Leads II, III, aVF= Inferior wall = Right Coronary Artery
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, Lead V1= Ventricular Septum = Left Anterior Descending V2, V3, V4= Anterior
Wall V1-V4= Anterior/septal wall
A patient was admitted for hypertensive crisis and Nipride was started. The nurse
knows to assess for which of the following:
Thiocyanate toxicity
Uremic encephalopathy
Hyperkalemia
Flash pulmonary edema - ANSWER-Thiocyanate toxicity
The most effective treatment for patients with acute mitral regurgitation is which
of the following:
Lay the patient flat and elevate the feet
Lasix drip
Epinephrine drip
Intraortic Balloon pump
Nicardipine drip - ANSWER-Intraortic Balloon pump
Acute mitral regurgitation is often caused by papillary muscle rupture and usually
presents as a cardiac emergency with the sudden onset and rapid progression of
pulmonary edema, hypotension, and signs and symptoms of cardiogenic shock.
Intraaortic balloon counterpulsation has been used as a temporizing measure prior
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
UPDATED 2025
A patient is admitted complaining of chest pain and dizziness. A second-degree
AV heart block, Type ll is noted on the ECG. This is most likely the result of
occlusion to which coronary artery?
left circumflex
left anterior descending
Right coronary artery
posterior descending - ANSWER-Right coronary artery
Recall that the RCA is the dominant supply to the AV node in 90% of the
population. You would therefore most likely observe ST changes in leads II, III
and AVF.
The nurse knows that which of the following is contraindicated for a patient
requiring Intra-aortic balloon pump?
ventricular aneurysm
aortic valve insufficiency
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,ventricular septal defect
mitral valve regurgitation - ANSWER-aortic valve insufficiency
Recall the anatomy of the heart valves and the direction and flow of blood.
The nurse is performing a 12-lead EKG for a patient having chest pain. The nurse
knows that lead V4 is placed in which of the following areas:
4th intercostal space, right sternal border
5th intercostal space, left sternal border
5th intercostal space, mid clavicular line
5th intercostal space, mid axillary line - ANSWER-5th intercostal space, mid
clavicular line
A patient is admitted with complaints of severe chest pain. ST elevation in leads
V3-V4 is seen on the ECG. During the PCI procedure, a stent was placed to the
LAD. 4 hours later the patients urine output is oliguric and crackles are auscultated
bilaterally. Which of the following hemodynamic profiles would the nurse expect:
CO: 5.1 BP:84/52 SVR:1100 PAP:31/12
CO: 6.7 BP: 92/62 SVR:510 PAP:17/5
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,CO: 2.9 BP:84/57 SVR:655 PAP:21/15
CO:3.6 BP:83/49 SVR:2180 PAP:42/25 - ANSWER-CO:3.6 BP:83/49 SVR:2180
PAP:42/25
This patient is presenting with an MI to the anterior/septal wall. First recall the
normal values for these parameters: CO = 4-8L/min. SVR= 700-1500
dynes/sec/cm-5. PAP= 25/10. (You MUST memorize these!) Then, recall that
conditions causing low SVR (vasodilation) generally involve septic shock,
anaphylaxis, or neurogenic shock. Elevated SVR (vasoconstriction) generally
occurs due to hypovolemia, low cardiac output, or cardiogenic shock. PA systolic
pressures generally reflect lung function, and PA diastolic pressures generally
reflect heart (left-sided) function.
Which of the following 12-lead ECG changes should be expected in a patient with
acute coronary syndrome with inferior wall involvement?
ST segment elevation in leads V4 - V6 and deeply inverted T waves in I and aVL
ST segment elevation in leads Il, Ill and all the precordial leads
ST segment elevation in leads II, III and aVF
ST segment depression and T wave elevation in leads Il, Ill and aVL - ANSWER-
ST segment elevation in leads II, III and aVF
Memorize the lead to vessel correlations: Leads I, aVL, V5, V6 = Lateral Wall =
Left Circumflex Artery Leads II, III, aVF= Inferior wall = Right Coronary Artery
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, Lead V1= Ventricular Septum = Left Anterior Descending V2, V3, V4= Anterior
Wall V1-V4= Anterior/septal wall
A patient was admitted for hypertensive crisis and Nipride was started. The nurse
knows to assess for which of the following:
Thiocyanate toxicity
Uremic encephalopathy
Hyperkalemia
Flash pulmonary edema - ANSWER-Thiocyanate toxicity
The most effective treatment for patients with acute mitral regurgitation is which
of the following:
Lay the patient flat and elevate the feet
Lasix drip
Epinephrine drip
Intraortic Balloon pump
Nicardipine drip - ANSWER-Intraortic Balloon pump
Acute mitral regurgitation is often caused by papillary muscle rupture and usually
presents as a cardiac emergency with the sudden onset and rapid progression of
pulmonary edema, hypotension, and signs and symptoms of cardiogenic shock.
Intraaortic balloon counterpulsation has been used as a temporizing measure prior
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
