Barron's CCRN Exam 2025 Questions
and Answers
"high dose" dopamine causes vasoconstriction and
(C) Increase afterload - ANSWER-What is the primary hemodynamic effect of:
Dopamine >10 mcg/kg/min
(A) Increase preload
(B) Decrease preload
(C) Increase afterload
(D) Decreased afterload
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,(E) Increase contractility
(D) Decrease contractility
Pulmonary HTN and cor pulmonale;
Mitral, aortic, or tricuspid insufficiency - ANSWER-What causes the S3 sound?
during diastole - ANSWER-When are coronary arteries perfused?
S3 heart sound - ANSWER-What may you hear before crackles when a patient is
going into heart failure?
Variant or Prinzmetal's Angina - ANSWER-What is this called?
Unstable angina with transient ST segment elevation
Can occur at rest or may be cyclic (occurring at the same time daily)
troponin negative
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,Can be precipitated by nicotine, coke, or ETOH
RCA, inferior LV - ANSWER-There are changes in leads II, III, aVF....what type
of MI?
LAD, anterior LV - ANSWER-There are changes in leads V1, V3 V3, V4
circumflex, lateral LV - ANSWER-There are changes in leads V5, V6, I, aVL
Low lateral LB - ANSWER-There are changes in leads V5, V6
high lateral LB - ANSWER-There are changes in leads I aVL
RCA, posterior LV - ANSWER-There are changes in leads V1 and V2
RCA, right ventricular infarct - ANSWER-There are changes in leads V3R, V4R
Marked ELEVATION of troponin/CK-MB: due to miocardial stunning when
vessel opens
reperfusion arrhythmias: VT, Vfib, accelerated idioventricular rhythm (due to
stunning)
resolution of ST segment deviations
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, Chest pain relief - ANSWER-What are some signs of reperfusion following
fibrinolytic treatment of a STEMI?
contact the physician. Could be coronary artery re-occlusion/stent thrombosis. -
ANSWER-Your patient just had a percutaneous coronary intervention (PCI)
(stenting) less than 24 hours ago:
He is experiencing unrelenting chest pain, his EKG shows ST elevation. What
should you do? What could be happening?
retroperitoneal bleeding is most likely. Give fluids/blood - ANSWER-Your patient
just had a percutaneous coronary intervention (PCI) (stenting) less than 24 hours
ago:
He is experiencing sudden low severe back pain and becomes hypotensive. What is
happening?
>1 (get by dividing ankle pressure by brachial pressure on the same side) -
ANSWER-what is a normal ankle-brachial index (ABI)?
do not elevate the affected extremity, it will decrease perfusion
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
and Answers
"high dose" dopamine causes vasoconstriction and
(C) Increase afterload - ANSWER-What is the primary hemodynamic effect of:
Dopamine >10 mcg/kg/min
(A) Increase preload
(B) Decrease preload
(C) Increase afterload
(D) Decreased afterload
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,(E) Increase contractility
(D) Decrease contractility
Pulmonary HTN and cor pulmonale;
Mitral, aortic, or tricuspid insufficiency - ANSWER-What causes the S3 sound?
during diastole - ANSWER-When are coronary arteries perfused?
S3 heart sound - ANSWER-What may you hear before crackles when a patient is
going into heart failure?
Variant or Prinzmetal's Angina - ANSWER-What is this called?
Unstable angina with transient ST segment elevation
Can occur at rest or may be cyclic (occurring at the same time daily)
troponin negative
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,Can be precipitated by nicotine, coke, or ETOH
RCA, inferior LV - ANSWER-There are changes in leads II, III, aVF....what type
of MI?
LAD, anterior LV - ANSWER-There are changes in leads V1, V3 V3, V4
circumflex, lateral LV - ANSWER-There are changes in leads V5, V6, I, aVL
Low lateral LB - ANSWER-There are changes in leads V5, V6
high lateral LB - ANSWER-There are changes in leads I aVL
RCA, posterior LV - ANSWER-There are changes in leads V1 and V2
RCA, right ventricular infarct - ANSWER-There are changes in leads V3R, V4R
Marked ELEVATION of troponin/CK-MB: due to miocardial stunning when
vessel opens
reperfusion arrhythmias: VT, Vfib, accelerated idioventricular rhythm (due to
stunning)
resolution of ST segment deviations
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, Chest pain relief - ANSWER-What are some signs of reperfusion following
fibrinolytic treatment of a STEMI?
contact the physician. Could be coronary artery re-occlusion/stent thrombosis. -
ANSWER-Your patient just had a percutaneous coronary intervention (PCI)
(stenting) less than 24 hours ago:
He is experiencing unrelenting chest pain, his EKG shows ST elevation. What
should you do? What could be happening?
retroperitoneal bleeding is most likely. Give fluids/blood - ANSWER-Your patient
just had a percutaneous coronary intervention (PCI) (stenting) less than 24 hours
ago:
He is experiencing sudden low severe back pain and becomes hypotensive. What is
happening?
>1 (get by dividing ankle pressure by brachial pressure on the same side) -
ANSWER-what is a normal ankle-brachial index (ABI)?
do not elevate the affected extremity, it will decrease perfusion
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
