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How to Assess Blood Pressure

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Presentation on theme: "How to Assess Blood Pressure"— Presentation transcript:

1 How to Assess Blood Pressure

2 What is blood pressure? Blood pressure is the measurement of the pressure that the blood exerts on the walls of the arteries during the various stages of heart activity.

3 2 Types of Blood Pressure Measurement
Systolic: pressure in walls of arteries when the left ventricle is contracting Diastolic: pressure when left ventricle is at rest (or between contractions)

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6 How do we record Blood Pressure?
BP Systolic/Diastolic

7 BP Norms: Category Systolic Diastolic Normal Blood Pressure <120
<80 Normal Range 60-80 Hypertension (high blood pressure) >140 >90 Hypotension (low blood pressure) <90 <60

8 Normal or Abnormal? 120/70 210/100 100/40 110/68 102/60 140/70 120/94
Normal range: Systolic: Diastolic: Hypertension: Systolic > Diastolic >90 Hypotension: Systolic <90 Diastolic <60 120/70 210/100 100/40 110/68 102/60 140/70 120/94

9 Application: Read the definitions/info on Hypertension and Hypotension on page 447. List 5 causes of hypertension List 5 causes of hypotension What is orthostatic hypotension? What are the S&S? Why is hypertension often called the “silent killer”?

10 5 Causes of Hypertension
Stress Anxiety Obesity High salt intake Aging Kidney disease Thyroid deficiency arteriosclerosis

11 5 Causes of Hypotension Heart failure Dehydration Severe burns
Depression Hemorrhage Shock Orthostatic hypotension: sudden drop in BP when pt moves from lying to sitting/standing

12 Types of Sphygmomanometers

13 What instruments are needed to measure blood pressure?

14 Parts of a Sphygmomanometer

15 How do you read an aneroid gauge?

16 Let’s Practice! Worksheet packet – reading an aneroid and mercury gauge

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18 How to Assess BP video Korotkoff sounds Assessing BP sounds/practice

19 Video 2 Answers: /72 /0 /86

20 Let’s Practice! Must maintain very quiet environment to make proper assessment. NO horseplay! Do not overinflate cuff. Must remove jackets/hoodies. Must roll up sleeve to expose arm.

21 BP Assessment Expose arm Identify antecubital space
Identify brachial artery Place cuff approx. 1 inch above brachial artery Inflate cuff to approx. 160mm Hg Open bulb valve SLOWLY! 1st sound: systolic Last sound: diastolic


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