blood pressure prelab

Measurement of Blood

Pressure In Man

PreLabDr Sherwan Shal 2008

Switch off your Mobile phones PLZ!!

I want to hear NOTHING !!!

Main Methods• Direct :

More accurate, but complicated.• Indirect:

Less accurate, easy to perform, sufficient.

Instruments (Sphygmomanometer)

1. Mercurial: Best, reliable, easy to mend, but large and heavy in weight.1. Aneroid: less reliable, easy to handle and

small and light in weight.2. Electronic: easy to use, less reliable.

Mercurial Sphygmomanometer

Aneroid Sphygmomanometer

Electronic sphygmomanometer

Remember ; Pain and fear raise your BP !!

Methods For BP Estimation• Palpatory:

Using only sphygmomanometer.• Auscultatory Method:

Using Sphyg. + Stethoscope.

BP Measurement• "Blood pressure"– Systolic over diastolic– About 120/80 mmHg

• Sphygmomanometer– "Estimate of pressure"– Korotkoff sounds

Notes• If a vessel is completely blocked:

No flow, no pulse and no sound.• If completely opened:

There is flow, there is pulse but no sound.• If the artery is partially closed (obstructed) then:

There is flow, pulse and sound.• Sound ONLY when there is partial obstruction

Stethoscope

Video of the BP Measurement

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Normal Blood Pressure• Depend on age and other factors:• Young adult:• Systolic 100-130 mmHg / Diastolic 60-90 mmHg• Children: Systolic up to 100 and Diastolic upto 60 is normal.• Elderly: up to 130/90 mmHg ( Increased because of

atherosclerosis)• Age + 100 is accepted for systolic , so , if some one is 50

years then systolic of 150 mmHg is normal. ( Diastolic upto 90 mmHg)

• Pulse pressure = Systolic–Diastolic• Mean arterial pressure (MAP) = Diastolic +

1/3 pulse p

Sport and Exercise

Good Diet Hygiene