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RCIS Mock Exam 2023|53 Questions with Complete Solutions.
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RCIS Mock Exam 2023|53 Questions withComplete Solutions.
In normal fetal circulation the path of oxygenated blood returning from the placenta
passes though several fetal shunts. One of these normal fetal pathways between the
aorta and PA can be described as a:
a- L>R shunt termed the PDA
b- R>L shunt termed the PDA
c- L>R shunt termed the foramen ovale
d- R>L shunt termed the foramen ovale - -the PA-AO shunt is the PDA and its right to
left. When the left heart pressure begins to exceed the right heart pressure, that such a
shunt would switch to left to right
-What is the name of the coronary arteries which normally branch off the Cx artery
towards the apex of the heart?
a- diagonal branches
b- OM branches
c- acute marginal branches
d- posterior descending branches - -The left sided AV groove artery is the Cx and its
branches are termed OMs
-The aortic dicrotic notch marks the beginning of ventricular:
a- systole
b- isometric relaxation
c- end diastolic pressure
d- slow filling phase - -B. The systolic pulse is divided by a midsystolic dip indicating a
sudden ejection followed by increased resistance and then secondary release.
-End-diastolic stretching of the ventricular muscle fibers is termed:
a- preload
b- afterload
c- inotropism
d- chronotropism - -Preload refers to the filling of the ventricular chambers in diastole
-The greatest expenditure of O2 during the cardiac cycle is used to:
a- open the aortic valve (isometric contraction)
b- open the mitral valve (diastolic filling)
c- eject blood out of the LV and into the AO (SEP)
d- overcome friction of blood viscosity and muscle compliance - -A. One of the chief
benefits of IABP is to lower the pressure at which the aortic valve opens, which
, decreases pressure work. This pressure work account for 90% of the work done by the
LV
-Which of the following is a common result of right sided heart failure?
a- dyspnea
b- pulmonary congestion
c- pulmonary hypertension
d- neck vein distension - -When the right side of the heart fails the RA and systemic
veins become engorged with blood. Pulmonary hypertension is only a compensation to
left sided failure
-Which of the following is NOT a clinical manifestation of shock?
a- pallor
b- metabolic acidosis
c- slow bounding pulse
d- falling blood pressure - -Slow bounding pulse. Tachycardia usually results to
compensate for decreased tissue perfusion
-If an embolus were to lodge in the distal RCA at the crux, which segment of the heart
would suffer damage?
a- RV
b- inferior LV wall
c- anterior LV wall
d- posterior lateral LV wall - -Inferior infarctions usually result from RCA infarction.
The distal RCA feeds the lower 1/3 of the IV septum and the inferior aspect of the LV
depending on the extent of posterior lateral RV branches
-Aortic stenosis is classified as what type of disease?
a- restrictive
b- hypertrophic
c- inflow obstructive
d- outflow obstructive - -Obstructive refers to stenosis or inability to EXIT a chamber
-An OLD myocardial infarct is seen on the ECG as a significant:
a- Q wave
b- inverted T wave
c- elevated ST segment
d- depressed ST segment - -Q waves never go away after myocardial tissue dies
-What type of angina does the following describe: An attack of chest pain at rest during
which the ECG shows changes identical with those of the early stage of MI, but returns
to the previous pattern upon the termination of the attack.
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