RCIS Practice Questions with complete solution 2023(rated A+)

RCIS Practice Questions with complete solution 2023(rated A+)What is the formula for calculating cardiac output? - correct answer CO = HR x SV *CO is the same in different size adults, circulating blood volume is different Stroke volume is related to preload or afterload? SV = How much blood pushed out each beat - correct answer Preload What is preload & afterload? - correct answer Preload = push (end diastolic volume) - How full of blood the heart is just before systole Afterload - pushback (total peripheral resistance) - How much contractile force needed to eject blood out of the ventricle What is preload most impacted by? - correct answer Increased filling volumes *Preload = push (end diastolic volume)* - How full of blood the heart is just before systole A patient w/ chronic untreated HTN would demonstrate increased or decreased preload or afterload? * Risk factor of CAD - correct answer Increased afterload *Afterload - pushback (total peripheral resistance)* - How much contractile force needed to eject blood out of the ventricle Chronic HTN = High SVR = High systole = More contractile fore Vascular resistance/pressure is most influenced by? - correct answer Radius of vessel Vasodilate = lower contractile force = Low BP Vasoconstrict = High contractile force = High BP What is the formula for BP? *2 - correct answer BP = CO x SVR BP = SV x HR x SVR What component of a pulmonary capillary wedge pressure indicates Mitral Insufficiency? - correct answer V wave *More volume in LA Atrial waveform - A = pressure (shown as P wave in ekg) - V = volume (shown as T wave in ekg) What does each of the components of a atrial waveform stand for? - correct answer A = atrial contraction C = closure of valve X = atrium fills (diastole) / valve closed V = atrium full (passive fill) / valve closed Y = atrium emptying / valve open