High Blood Pressure - KreativeVistas

share
0

Recent videos from ak47boyz90 Videos

4 L3- Circulatory Shock
Sep 11, 2009
37 videos see all

what people are saying

High Blood Pressure - Kreat...
Oct
24

add a comment

2000 characters left.
First collected by ak47boyz90 Videos
Aug 26, 2009
from youtube.com
join Your favorite videos on the web, in one place. Start your collection now.

related videos

tags

collected by 2 people

details

115 views

original description

Arterial blood pressure Normal values Factors affecting How to measure Regulation The arterial Blood Pressure It is the lateral force exerted by the moving column of blood on the lateral wall of arteries Systolic blood pressure -This is the maximum pressure created inside the arteries during ventricular systole due to rapid ejection of blood into the aorta. -It normally ranges between 90 and 140 mmHg at rest. Diastolic blood pressure It is the minimum pressure which remains inside the arteries at the end of ventricular diastole. Diastolic blood pressure is normally between 60 and 90 mmHg at rest. Pulse pressure It is the difference between the systolic and diastolic blood pressures which equals about 40 mmHg. The mean systemic ABP This is the average pressure in the systemic arteries throughout the cardiac cycle. It is calculated as: Mean arterial blood pressure = diastolic pressure + 1/3 pulse pressure Importance of ABP 1- It maintains sufficient pressure to keep the blood flowing. 2- It provides enough hydrostatic pressure inside the capillaries essential for the formation of interstitial fluid, urine, …. etc Physiological Variations in ABP 1-Age 2-Sex 3-Race 4-Body built 5-Meals 6-Gravity 7-Emotions 8-Sleep 9-Exercise 10-Respiration Measurement of ABP -Direct measurement by cannulation of a large artery. -Indirect measurement by Sphygmomanometer: A-The palpation method B-The auscultatory method Factors that determine and maintain the ABP 1- The cardiac output C O P  =  S V  X  H R -Changes in the stroke volume with the HR constant affect the systolic more than the diastolic pressure. -Changes in the HR with constant SV affect the diastolic more than the systolic blood pressure 2-The peripheral resistance Factors that determine the PR: PR  =  VL/r4 A-The diameters of arterioles (r) B-Viscosity of blood (V) C-Length of the blood vessels (L) Regulation of diameter of arterioles -The arterioles represent the main peripheral
Flag this Video as inappropriate or broken