Rcis Study Conversions And Hemodynamic Formulas

Front 1

1.
CO (Cardiac output) =
_____x _______

Back 1

HR x SV
normal is 4-8liters per minute

Front 2

2.
Stroke Volume SV=

Back 2

SV (stroke volume)= CO in ml’s divided by HR

Normal range= 60-130ml

Front 3

3.
What is the formula for MAP (mean arterial pressure)

Back 3

Systolic BP + (2 x diastolic) divided by 3

Front 4

4.
The patient has a BP of 140/90
calculate the MAP.

Back 4

step1: 140 + 2x90 = 320

step2: 320/3 = 106.6

answer: = 107mm/hg

Front 5

5.
FORMULA FOR ANGIOGRAPHIC SV(stroke volume) =

Back 5

End Diastolic volume minus the End systolic Volume

EDV-ESV

Front 6

6.
Calculate the ANGIOGRPAPHIC SV (STROKE VOLUME)

GIVEN:
• EDV=140ML
• ESV= 40ML

Back 6

Formula:
EDV-ESV

140ml-40ml = 100ml

Front 7

7.
What is the average SV (stroke volume) in adults?

Back 7

70ml
range is 60-130ml

Front 8

8.
Given:
CO 5liters/min
Heart rate 80
Calculate the SV (stroke volume)

Back 8

Formula: SV= COin ml/HR
step 1: Change 5 liters to ml =5000ml
step 2: Divide by heart rate of 80
5000/80=62.5 or 63ml/min

Front 9

9.
Given
HR 90
SV 100ml
Calculate the CO(cardiac output)

Back 9

CO=HRxSV
90x100=9000
CO=9000ml/min or 9L/min

Front 10

10.
Angiographic Cardiac output
or LVMF (left ventricular minute flow)
What is the Formula for LVMF?

Back 10

LVMF=
LV end diastolic volume - LV end systolic volume x Heart rate

LVEDV - LVESV x HR

Front 11

11.
Calculate the LVMF or Angiographic Cardiac output

Given:
LVEDV = 140ml
LVESV = 40ml
HR = 66 bpm

Back 11

LVMF = LVEDV - LVESV x HR
step 1: 140ml - 40ml = 100ml
step 2: 100ml x 66 bmp=6600ml

answer: LVMF = 6600ml/min or 6.6liters/min

Front 12

12.
RF REGURGITATION FRACTION
DEFINITION

Back 12

The ratio of regurgitation to the LV total flow.
This is the most accurate form of cardiac output for patients with valvular regurgation.

Front 13

13.
Formula for RF %(Regurgitation Fraction) using Cardiac Output

Back 13

Formula for Regurgitation Fraction

LVMF - CO from Fick or TD
divided by LVMF

Front 14

14.Calculate the RF% (regurgitation fraction)

Given
LVMF is 6.6liters/min
TD (thermodilution) CO is 4.56liters/min

Back 14

LVMF - CO from Fick or TD
divided by LVMF

step 1: 6.6liters - 4.56liters =2.04 liters

Step 2: 2.04/6.6=.309

Step 3: .309 x 100 = 30.9%

Front 15

15.
Cardiac Index
Formula for CI is

Back 15

CI= CO/BSA
Cardiac output divided by the Body Surface Area

Normal values= 2.5-4.2 L/min/meter squared

Front 16

16.
What is BSA or Body Surface Area

Back 16

Body surface area: BSA. The total suface area of the human body. The BSA is used in many measurements in medicine, including the calculation of drug dosages and the amount of fluids to be administered IV.

Front 17

17.
What is the Average BSA for men and for women?

Back 17

Average BSA for adult men: 1.9 m2
Average BSA for adult women: 1.6 m2

Front 18

18.
ANGIOGRAPHIC SV (STROKE VOLUME) DEFINITION

Back 18

THE AMOUNT OF BLOOD BEING EJECTED FROM THE LV DURING EACH CONTRACTION. THE ANGIOGRAPHIC SV can be calculated using the formula:

SV = EDV-ESV. End Diastolic Volume and End Systolic Volume must be calculated by using quantitative measurements of the LV angiography.
Average Stroke Volume for adults is 70 ml.

Front 19

19. PVR
(Pulmonary Vascular Resistance)
Formula

Back 19

(Mean PA) – (Mean PCW)
divided by CO

Given:
PA= 25/10/15
PCW=9/6/6
CO=6.8


(15-5)/6 = 1.3 HRU’s (Hybrid or Wood Units)


1.3 x 80 = 104 dynes/sec/cm-5 ARU’s

Front 20

20. Pulse Pressure Formula

Back 20

AO systolic – AO diastolic

Given: BP=120/80
120-80 = 40
Answer 40mmHg

Front 21

21. Normal Range for Absolute Resistance Units (ARU’s) for SVR and PVR

Back 21

SVR = 1130 +or- 178

PVR = 67 +or- 23

Front 22

22. Formula for Conversion of HRU’s (Hybrid Resistance Untis) to ARU’s Absolute Resistance Units

Back 22

SVR = HRU’s x 80
PVR = HRU’s x 80

Front 23

23. The formula for BP

Back 23

CO x SVR (systemic vascular resistance)

Front 24

24. Normal Range for Absolute
Resistance Units (ARU’s) for SVR and PVR

Back 24

SVR = 1130 + or - 178

PVR = 67 + or - 23

Front 25

25. Formula for Peak to Peak Gradient

Back 25

LV systolic - AO systolic

Given:
LV 180/0/18
AO 130/70

180-130=50
Answer: 50mmHg Gradient

Front 26

26. Normal O2 Consumption

Back 26

Adult 250ml/min
Child 150ml/min

Front 27

27. Formula for Ejection Fraction

Back 27

Stroke Volume
divided by End Diastolic volume

Front 28

28. Ejection Fraction Formula

Back 28

Formula:

SV(stroke volume)/EDV

Front 29

28. Calculate the Ejection Fraction

Given:
EDV 130
ESV 70

Back 29

Formula:
SV(stroke volume)/EDV

130-70/130=.46

.46 or 46%

Front 30

29. The dP/dT comes from delta P/delta T or change in pressure over time and is a good index of ?

Back 30

LV contractility