ECG – CPO EXAM QUESTIONS WITH ANSWERS

ECG – CPO EXAM QUESTIONS WITH
|\ |\ |\ |\ |\ |\




ANSWERS


Are pulmonary veins oxygenated or deoxygenated? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\


ANSWERS ✔✔oxygenated |\




How do you determine cardiac output? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\


✔✔stroke volume x heart rate |\ |\ |\ |\




What is the correct order of blood flow? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


✔✔Right atrium, tricuspid valve, right ventricle, pulmonic valve,
|\ |\ |\ |\ |\ |\ |\ |\


pulmonic arteries , pulmonic veins, left atrium, mitral valve, left
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


ventricle, aortic valve and aorta |\ |\ |\ |\ |\




(Try pulling my aorta )
|\ |\ |\ |\




How does our ventricle fill? - CORRECT ANSWERS ✔✔Passive
|\ |\ |\ |\ |\ |\ |\ |\ |\


filling of the right and left ventricles from systemic circulation
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


(dystale) |\




- blood flows from high to low
|\ |\ |\ |\ |\ |\




What does isovolumetric mean? - CORRECT ANSWERS ✔✔same
|\ |\ |\ |\ |\ |\ |\ |\


volume


What are the 3 tissue layers of the heart? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


✔✔epicardium, myocardium, endocardium |\ |\

, What are the two types of myocardial cells? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


ANSWERS ✔✔pacemaker cells and worker cells |\ |\ |\ |\ |\




What are pacemaker cells? - CORRECT ANSWERS ✔✔- formation
|\ |\ |\ |\ |\ |\ |\ |\ |\


of electrical current
|\ |\




- Conduction of impulse to working cells
|\ |\ |\ |\ |\ |\ |\




- Found only within the conduction pathway
|\ |\ |\ |\ |\ |\




What are working cells? - CORRECT ANSWERS ✔✔- Possess ability
|\ |\ |\ |\ |\ |\ |\ |\ |\


to contract (shorten)
|\ |\ |\ |\




- Must be electrically charged to contract
|\ |\ |\ |\ |\ |\ |\




- Fibres are grouped together to form the basic contractile unit
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


called a sarcomere |\ |\




What are the 5 properties of myocardial tissue? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


ANSWERS ✔✔1. Automaticity |\ |\ |\




2. Rhythmicity
|\ |\




3. Conductivity
|\ |\




4. Contractility
|\ |\




5. Excitability
|\




What is the primary pacemaker? - CORRECT ANSWERS ✔✔SA
|\ |\ |\ |\ |\ |\ |\ |\ |\


node


What are the normal rate of the SA node? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


✔✔60-100