1. Blood Pressure Name of PowerPoint Name of Course Name of Lesson
Project Lead The Way©
Copyright 2005

2. What Causes Blood Pressure?
Name of PowerPoint
Name of Course
Name of Lesson
What Causes Blood Pressure?
Blood is a fluid.
As fluids move through a pipe there is pressure exerted on the wall of the pipe. This pressure is called hydrostatic pressure.
When blood moves through blood vessels, there is pressure on the walls. This is blood pressure.
Project Lead The Way©
Copyright 2005

3. Blood Pressure Measurement
Name of PowerPoint
Name of Course
Name of Lesson
Blood Pressure Measurement
Measure pressure on arteriole wall when heart contracts (systole)
Measure pressure on arteriole wall when heart relaxes between contractions (diastole)
Indicate blood pressure measurement as the ratio of systolic to diastolic pressures
Project Lead The Way©
Copyright 2005

4. Blood Pressure Measurement
Name of PowerPoint
Name of Course
Name of Lesson
Blood Pressure Measurement
Traditionally measured in mm of mercury
The measurement is the force that can support a column of mercury so many mm high
Traditionally taken in upper arm level with the heart; can be taken elsewhere to measure peripheral blood flow or pressure
Example Measurement
120 / 70: Systolic=120 Diastolic=70
Project Lead The Way©
Copyright 2005

6. Systolic pressure + 2(Diastolic pressure)
Name of PowerPoint
Name of Course
Name of Lesson
What is MAP?
MAP= Mean Arterial Pressure
Used to measure adequacy of blood getting to vital tissues and organs
Calculated by following formula:
Systolic pressure + 2(Diastolic pressure) 3
Project Lead The Way©
Copyright 2005

7. What Can Influence Blood Pressure?
Name of PowerPoint
Name of Course
Name of Lesson
What Can Influence Blood Pressure?
Many things, including (but not limited to):
Diet
Weight
Age
Genetics
Stress
Smoking
Physical Activity
Project Lead The Way©
Copyright 2005