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Crit Care > hemodyn values > Flashcards

hemodyn values Flashcards

1
Q

What is the normal value for CI

A

2.5 - 4.0

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2
Q

What is a normal stroke volume?

A

60-130 ml/beat

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3
Q

What is a normal SVI?

A

30-50 ml/m2

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4
Q

What is a normal SVR?

A

900-1400 dynes/sec/cm -5

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5
Q

What is a normal SVRI?

A

1700 - 2600 dynes/sec/cm -5/m2

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6
Q

What is a normal PVR?

A

100-250 dynes/sec/cm -5

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7
Q

What is a normal PVRI?

A

200-450 dynes/sec/cm -5/m2

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8
Q

What is a normal LVSWI?

A

40-75 g.m/m2/beat

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9
Q

What is a normal RVSWI?

A

4-8 g m/m2/beat

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10
Q

What is a normal CVP or RA value?

A

2-6

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11
Q

What is a normal RV?

A

20-30 mmHg Sys

Dias 0-5

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12
Q

What is a normal PAPS?

A

20-30 mmHg

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13
Q

What is a normal PAPD?

A

6-15 mmHg

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14
Q

What is the normal MPAP

A

10-20 mmHg

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15
Q

What is a normal PCWP?

A

4-12 mmHg

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16
Q

Pulmonary vascular resistance increases the difference between PAEDP and PCWP because the site of resistance lies between the two points. In a lung problem PAEDP would _______ and PCWP would _________.

A

PAEDP would increase and PCWP would not be affected which would increase the difference

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17
Q

Decreased left ventricular contractility causes blood to back up and causes an increase in?

A

pulmonary artery pressure (PAP)

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18
Q

PCWP elevated; CI normal?

A

Causes fluid overload; hypervolemia

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19
Q

PCWP elevated; CI low?

A

Left heart failure

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20
Q

PCWP low to normal; CI low

A

hypovolemia

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21
Q

PCWP low to normal; CI normal?

A

Warm sepsis

22
Q

What is the FICK equation for CO?

A

CO= VO2/C(a-v)O2

23
Q

What is formula for CI?

A

CO/BSA

24
Q

What does septic shock due to HR?

A

It will increase HR

25
Q

What does hypovolemia due to HR?

A

Decreases HR

26
Q

How does hypovolemia affect preload?

A

Increases preload

27
Q

What is a treatment for increased preload?

A

Diuretics such as lasics or diamox

28
Q

What does sepsis due to preload & how is it treated?

A

It reduces preload; treat with volume expanders

29
Q

What type of drug will increase heart contractility?

A

Ionotropic drugs

Vasopressors: dopamine, digoxin, epinephrine, isoproterenol

30
Q

What will decrease heart contractility?

A

Negative ionotropic drugs
Calcium channel blockers
Beta blockers (proponalol)
Coronary vasodilator

31
Q

What will decrease afterload?

A

Diazoxide to reduce PVR
Nitroglycerine
Alpha inhibitors

32
Q

What drugs will increase afterload?

A

Vasopressors: norepinephrine, epinephrine, Pheylephrine

33
Q

How can you distinguish COPD from PHTN?

A

Onset quicker with PHTN such as emboli & with COPD PASP greater than 40; With PHTN PASP less than 40

34
Q

When you see preload, what value is most affected?

A

PCWP

35
Q

When you see afterload, what value is most affected?

A

PAP; MAP

36
Q

When you see contractility what value is most affected?

A

SVR, PVR

37
Q

How is septic shock treated?

A

Vasopressors

38
Q

How does systemic vasodilation affect CO?

A

It will increase CO

39
Q

SV is what type of measurement?
A. Derived
B. Directly measured?

A

A. Derived

40
Q

What type of calculation is PVR & SVR
A. Derived
B. Directly measured

A

A. Derived

41
Q

What type of calculation is done with CO?
A. Derived
B. Directly measured

A

B. Directly measured

42
Q

What type of value is PWCP?
A. Derived
B. Directly measured

A

B. directly measured

43
Q 
Increased afterload may be caused by
1.  Hypovolemia
2.  Hypervolemia
3.  Vasodilation
4.  Vasoconstriction
A.  1 and 3
B.  1 and 4
C.  2 and 4
D.  2 and 3
A

B. Hypovolemia & vasoconstriction both increase afterload

44
Q

How does decreased afterload affect stroke volume?

a. increase
b. decrease
c. no affect

A

A. decreased afterload will increase stroke volume

45
Q 
This value is only measured during catheter insertion
A.  CVP
B.  RV
C.  PCWP
D.  RA
A

B. RV

46
Q 
After insertion, what reads your RA?
A.  Distal port
B.  Proximal port
C.  VIP port
D.  None, RA can only be read on insertion
A

B. Proximal port

47
Q

What value represents compliance of right ventricle?

A

RVEDP

48
Q

What is the formula for MAP?

A

MAP = Systolic + (Diastolic x2) / 2

49
Q

If a person is hypoxic what type of drug should be avoided or watched closely?

A

Chronotropic

50
Q

How does heart failure affect contractility?
A. Increased
B. Decreased
C. No effect

A

B. Decreased

51
Q

Are CO & HR:
A. directly measured
B. Calculated

A

A. Directly measured

Crit Care (8 decks)

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