EEEE6 Flashcards
vessels that deliver blood back toward the heart
veins
vessels that deliver blood away from the heart
arteries
arteries have (low/high) pressure
high
veins have (low/high) pressure
low
pulse points are surges of pressure in _______________
arteries
surges of pressure in arteries
pulse points
The pressure of blood on the artery wall due to heartbeat measures in beats per minute (bpm)
heart rate or pulse
What is heart rate measured in?
beats per minute
What arteries are used to feel pulse points?
brachial and radial arteries
What is the normal BP?
120/80 mm Hg
hypertension indicates blood pressure greater than ________________
140/90 mm Hg
blood pressure during ventricular contraction
systolic pressure
blood pressure during ventricular relaxation
diastolic pressure
Another term for a blood pressure cuff
sphygmomanometer
The turbulent sounds made by blood passing through constricted arteries
Sounds of Korotkoff
What position should the arm be when taking blood pressure?
at heart level and supported
the sounds of Korotkoff are turbulent sounds made by blood passing through ________________________
constricted arteries
What is the formula to calculate blood pressure?
Cardiac output x peripheral resistance
The amount of blood pumped in 1 minute
cardiac output
Cardiac output is the amount of blood pumped in ____________________
1 minute
________________ blood pressures is estimated rather than measured
venous
________________ can indicate vascular problems
skin color
Reclining 2-3 min (decreases/increases) BP and (decreases/increases) heart Rate…. why?
decreases, decreases, due to low gravity
Immediately standing after resting (decreases/increases) BP and (decreases/increases) heart Rate…. why?
decreases, increases, CO decreases because venous return decreases for a second
Exercising (decreases/increases) BP and (decreases/increases) heart Rate…. why?
increases, increases, because cardiac output increases
Submersion in cold water (decreases/increases) BP and (decreases/increases) heart Rate…. why?
increases, increases, because the blood vessels constrict
What are 4 factors that affect CO and PR?
- vasoconstriction/vasodilation
- condition of blood vessels
- viscosity of blood
4 additional forces (gravity)
What are the 3 factors that affecting peripheral resistance?
- arteriole diameter
- vessel length
- blood viscosity
What are the 5 factors that affecting cardiac output?
- blood volume
- vein diameter
- venous return
- stroke volume
- heart rate
What artery is most commonly used to discern pulse?
radial artery
