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2024 BARRON'S CCRN EXAM WITH CORRECT ANSWERS
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2024 BARRON'S CCRN EXAM WITH CORRECT ANSWERS
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2024 BARRON'S CCRN EXAM WITHCORRECT ANSWERS
What is the primary hemodynamic effect of:
Morphine
(A) Increase preload
(B) Decrease preload
(C) Increase afterload
(D) Decreased afterload
(E) Increase contractility
(F) Decrease contractility - CORRECT-ANSWERS(B) Decrease preload
dilates venous bed, can be used to tx heart failure
Septic shock hemodynamic indicators:
SVR: high or low?
CI: high or low?
SVO2: high or low? - CORRECT-ANSWERSSVR: low <700
CI: high >4
SVO2: high, >80%
A LOW CVP (<2) indicates
A high CVP (>6) indicates - CORRECT-ANSWERShypovolemia
Hypervolemia
Heart failure:
High or low:
,afterload
preload - CORRECT-ANSWERSboth high
dobutamine may help treat by increasing contractility
Septic shock
High or low:
afterload
preload - CORRECT-ANSWERSboth low
What is the primary hemodynamic effect of:
Dopamine >10 mcg/kg/min
(A) Increase preload
(B) Decrease preload
(C) Increase afterload
(D) Decreased afterload
(E) Increase contractility
(D) Decrease contractility - CORRECT-ANSWERS"high dose" dopamine causes
vasoconstriction and
(C) Increase afterload
What causes the S3 sound? - CORRECT-ANSWERSPulmonary HTN and cor
pulmonale;
Mitral, aortic, or tricuspid insufficiency
When are coronary arteries perfused? - CORRECT-ANSWERSduring diastole
What may you hear before crackles when a patient is going into heart
failure? - CORRECT-ANSWERSS3 heart sound
, 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
Can be precipitated by nicotine, coke, or ETOH - CORRECT-ANSWERSVariant
or Prinzmetal's Angina
There are changes in leads II, III, aVF....what type of MI? - CORRECT-
ANSWERSRCA, inferior LV
There are changes in leads V1, V3 V3, V4 - CORRECT-ANSWERSLAD, anterior
LV
There are changes in leads V5, V6, I, aVL - CORRECT-ANSWERScircumflex,
lateral LV
There are changes in leads V5, V6 - CORRECT-ANSWERSLow lateral LB
There are changes in leads I aVL - CORRECT-ANSWERShigh lateral LB
There are changes in leads V1 and V2 - CORRECT-ANSWERSRCA, posterior LV
There are changes in leads V3R, V4R - CORRECT-ANSWERSRCA, right
ventricular infarct
What are some signs of reperfusion following fibrinolytic treatment of a
STEMI? - CORRECT-ANSWERSMarked 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
Chest pain relief
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? - CORRECT-ANSWERScontact the
physician. Could be coronary artery re-occlusion/stent thrombosis.
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