Flashcards in Disorders of Fluid, Electrolytes, Acid Base, and Blood Deck (131)
This is the mechanical pressure exerted on one object by another
Pressure caused by the weight of fluid, and is exerted in the weight of a column
Where is hydrostatic pressure the largest?
The legs and feet
What is a clinical example of failed hydrostatic pressure
This is the increment of pressure that is created by the resistance to the flow of a fluid in a closed system
What is an example of hydrodynamic pressure?
The cardiovascular system
This is the hydrodynamic pressure of moving blood
What is the equation of blood pressure?
Blood pressure= blood flow rate (cardiac output) * vascular resistance
What % of water is intracellular?
For fluid to flow, there must be ______
Pressure acting on that fluid
Where is the pressure highest in the heart?
Where is the pressure lowest in the heart?
Where is the area of the greatest resistance?
The arterioles (provided by the smooth muscle tone)
The pressure gradient is driven by the ______ work for the left ventricle myocardial muscle
What determines the flow into the arterial tree?
What determines flow out of the arterial tree?
What is the equation for cardiac output?
CO= HR * SV
What influences cardiac output?
The lesser the blood volume, the ____ cardiac output and the _____ blood pressure
-Lesser cardiac output
-Lesser the Blood pressure
What determines vascular resistance?
The collective size of the small peripheral arterioles
The arterioles _____ to increase out flow
The arterioles _____ to decrease out flow
Where are the arterial blood pressures the highest?
What is the relative arterial blood pressure in the upper arm?
What is the average blood pressure when it reenters the heart near the aorta?
What triggers the RAA system?
Low Blood pressure
What secretes renin
Why is renin secreted?
To increase BP
What does renin do?
Acts on angiotensinogen and converts it to angiotensin 1