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BLOOD VOLUMES

BLOOD VOLUMES. CARDIAC. Terminology. Terminology. Our patient has a heart rate of 85 bpm . The EDV was determined to be 120 mL with an ESV of 30 mL. What is the cardiac output? - 1 st we must determine the SV, which is 120 mL – 30 mL = 90 mL

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BLOOD VOLUMES

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  1. BLOOD VOLUMES CARDIAC

  2. Terminology

  3. Terminology

  4. Our patient has a heart rate of 85bpm. The EDV was determined to be 120 mL with an ESV of 30mL. What is the cardiac output? - 1st we must determine the SV, which is 120 mL – 30 mL = 90 mL -2nd So the cardiac output is = SV of 90 mL x 85bpm = 7650 mL - 3rd Since 7650 mL is such a large number, let’s change it into liters, which is 7.65 L. FORMULAS WE NEED TO KNOW 1st SV = EDV-ESV 2nd CO = SV x bpm 3rd Change mL into L = 1L/1000 mL

  5. Same patientwitha heart rate of 85bpm. • The EDV was determined to be 120 mL with an ESV of 30mL. • What is the EF (ejection fraction)? • 1st if we have background, it must be subtracted from both the EDV and the ESV. • 2nd EF = 120 mL – 30 mL / 120 mL x 100% = 75% • FORMULAS WE NEED TO KNOW • EF = EDV – ESV / EDV x 100% • We did not need the heart rate information for this equation so it is considered superfluous. • Superfluous (soo-PER-floo-uhs) means "more than required.”

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