Hemodynamic Monitoring Flashcards
As blood volume decreases, blood flow and blood pressure also decrease.
True or False
True
A pt’s BP is 130/85.
What is the pulse pressure and MAP?
Pulse Pressure= SBP-DBP: 45mmHg
MAP = [SBP+ 2(DBP)] /3 : 100mmHg
The longer the vessel, the lower the resistance and greater the flow.
True or False.
False
Which class of vessels has the greatest decline of mean blood pressure as blood flows away from the heart?
Arterioles
What 3 things does venoconstriction increase
- Blood pressure within the vein.
- Blood flow within the vein.
- Return of blood to the heart.
When does arterial systolic pressure occur in the cardiac cycle
During left ventricular ejection
Diastolic pressure occurs just before left ventricular ejection.
True or False
True
What increases pulse pressure
Decreased aortic compliance
Increasing preload
Increasing contractility
Increasing stroke volume
What does a pulmonary artery catheter monitor
Vascular tone Myocardial contractility Intracardiac pressures Cardiac output Fluid balance
What is a normal Cardiac output range
4-8L/min
MAP=COxSVR
True or False
True
Preload is measured by
Pulmonary occlusion pressure
Right Atrial pressure
Central Venous pressure
Cardiac Index is measured by CO/BSA (body surface area) and normal range should be 2.5-4 L/min/m2
True or False
True
If during exercise cardiac output doubles and systemic vascular resistance decreases by 50%, what will happen to mean arterial pressure? (assume that central venous pressure is zero)
a) increases by 50%
b) increases by 100%
c) decreases by 50%
d) does not change
d) does not change
Your patient has a left subclavian central venous catheter (CVL) and a left radial arterial catheter. Which assessment requires most immediate action?
a) A dampened arterial waveform
b) Numbness and tingling in the left hand
c) Slight oozing of blood at the CVL insertion site
d) Erythema at the CVL insertion site
b) Numbness and tingling in the left hand
