CSC Certification Exam Prep Questions
and Answers
What does the RCA perfuse? - answer Inferior wall, RA, SA Node, AV node, RV,
Posterior portion of the septum, Posterior wall, Bundle of His
What does the LMA perfuse? - answer Bifurcates into the: LAD (Left Anterior
Descending), Left Circumflex Artery
What does the LAD perfuse? - answer Septal & Anterior Wall, Front & apex of LV,
Interventricular septum, anterior pap muscle, most of the R & L bundle branches,
Bundle of His
What is the most commonly occluded artery? - answer LMA
What does the Left Circumflex perfuse? - answer Lateral Wall, LA, Back of LV,
Posterior wall in 10% of pop
Ramus artery - answer 20% of the population has it. Tertiary left main; runs along
the LV, between the LAD & circumflex
SVR - answer Systemic Vascular Resistance- the resistance the LV has to overcome
to eject. (Afterload)
PVR - answer Peripheral vascular resistance: the resistance the RV has to
overcome to eject
S1 - answer Closure of the MV and TV; Systole; 1/3 of the cardiac cycle "Lub"
S2 - answer Closure of the pulmonic and aortic valve; Diastole; 2/3 of the cardiac
cycle; DUB
S3 - answer Auscultated in fluid overload; when preload is elevated; KENTUCKY
S3 is normal in which popuation(s)? - answer Normal in kids, high CO like pregnancy
(3rd trimester)
S4 - answer Atrial gallop (pre-systolic); sound caused by vibration of atria ejecting
into non compliant ventricle; Tennessee
Causes of S4 - answer Ischemia, HTN, pulmonary stenosis, CAD, AS, LV
Hypertrophy
, When are Split Heart sounds heard best? - answer Inspiration
Split S1 - answer MV closes b/f tricuspid
Causes of Split S1 - answer RBBB, PVCs, Ventricular Paced rhythms
Split S2 - answer Aortic closes b/f pulmonic valve
Causes of Split S2 - answer Overfilled RV, ASD
Indications for ACE Inhibitors - answer CHF/Systolic Failure, AMI (EF <40%),
Anterior wall MI, HTN, Diabetic Renal Nephropathy
-prils Angiotensin Converting Enzyme
Effects of ACE Inhibitors - answer Vasodilation, decrease preload & afterload,
prevention of myocardial remodeling, reduce progress of diabetic nephropathy
What do you want to monitor for in ACE inhibitor administration? - answer
Hypotension, hyperk, cough/angioedema, renal function
Cardioselective B-Blockers - answer Blocks B1--> Bisoprolol, metoprolol SR,
Atenolol, Esmolol, Acebutolol, Nebivolol
Alpha & Beta Blocking Medications - answer Labetalol, Carvedilol (Coreg)
Non-selective Beta Blocking Medications - answer Blocks B1 + B2; Propanolol,
Timolol, Nadolol, Sotalol
Indications for Beta Blockers - answer HTN, Secondary prevention of MI (metoprolol
+ carvedilol), Cardiac arrhythmias, angina, Afib, CHF/Systolic HF
Effects of B Blockers - answer Decreases HR/BP, negative inotrope by decreasing
myocardial workload, decreases preload, blocks stress catecholamines (epi + NE),
decreases morbidity/mortality, decreases arrhythmias
What should you monitor for in B blocker administration? - answer Low HR, Low BP,
AV Blocks, HF, signs of shock, bronchospasm; cocaine use
B blocker reversal agent - answer Glucagon
How do Angiotensin Receptor Blockers work? - answer They block AT1 receptors
that hormones act on which are found in the heart, blood vessels, and kidneys. Block
Angiotensin 2 to help lower BP
