PCCN Exam questions with correct answers

What is the function of the cardiovascular system CORRECT ANSWER to drive O2 to the cell so that the cell can make ATP for energy production What is the formula for CARDIAC OUTPUT CORRECT ANSWER Stroke volume x Heart Rate CO = HR X SV ( Preload + Afterload + Contractility) What is the term for the amount of blood that is pumped out of the ventricle each MINUTE? CORRECT ANSWER Cardiac Output ( approximately 4 - 8 LPM ) What is the term for the amount of blood that is pumped out of the ventricle each BEAT? CORRECT ANSWER Stroke Volume What is the term for the number of contractions / minute? CORRECT ANSWER Heart Rate IMPORTANT RELATIONSHIPS TO KNOW CORRECT ANSWER 1. CO DECREASED -> HR INCREASES ( to maintain adequate stroke volume ) 2. CO INCREASED -> HR DECREASES ( as stroke volume decreases ) 3. HR DECREASED -> SV DECREASES and CO DECREASES 4. HR INCREASES ( > 150 ) -> SV DECREASES and CO DECREASES