MEASURING & RECORDING VITAL SIGNS

Clinical Rotations

Blood PressureTemperature ----------------------------Pulse----------------------- Respirations

The Four Vital Signs

Objectives: Students will:

List the 4 major vital signs Describe the principles for measuring and

recording oral, rectal, axillary, tympanic and temporal temperatures

Convert Fahrenheit to Celsius Define- temperature, pulse, respirations,

blood pressure and apical pulse

WHAT IS BLOOD PRESSURE? When your heart beats, it pumps

blood around your body to give it the energy and oxygen it needs

As the blood moves, it pushes against the sides of the blood vessels( arteries) –

The strength of the force exerted on your vessels is called your blood pressure

How is blood pressure it measured?

Measured in millimeters of mercury A blood pressure machine is called a sphygmomanometer

BP is read at two points: Systolic Diastolic

Systolic Blood Pressure

Blood pressure

Pressure that occurs in the walls of the arteries when the LEFT VENTRICLE OF THE HEART is contracting

Normal systolic reading is BELOW 120 mm or mercury Normal range is 100- 120 mm or

mercury Systolic is the FIRST sound heard

Diastolic Blood Pressure The constant pressure in the walls of the

arteries when the LEFT VENTRICLE is at rest (between contractions)

Normal diastolic reading is below 80mm or mercury

Normal range is 60-80 mm of mercury It is noted as the reading on the BP

gauge when the sound STOPS or becomes very FAINT

Recording Blood Pressure Recorded in the form of a fraction Systolic is the top number Diastolic is the bottom number Example:

120/70

Pulse Pressure The difference between the SYSTOLIC

and the DIASTOLIC pressure Important indicator of the health & tone

of the arterial walls Normal pulse pressure is: 30-50 mm of

mercury Example: what is the pulse pressure of 110/80

Answer: The pulse pressure of 110/80 is:30 mm of mercury

Abnormal Blood Pressure Pre Hypertension

Warning that high blood pressure is likely to develop

This condition can harden arteries, dislodge plaque, and block vessels that nourish the heart

Indicated by pressure readings of: Systolic –120-139 mm of mercury Diastolic – 80-89 mm or mercury

Hypertension Indicated when pressures are greater than 140 mm of mercury

COMMOM CAUSES: Stress Anxiety High salt intake Advanced age Thyroid disease Vascular disease such as arteriosclerosis

Hypotension Indicated when BP is less than

90 mm of mercuryCOMMOM CAUSES

Occurs with heart failure Dehydration Depression Severe burns Hemorrhage Shock

Orthostatic or Postural Hypotension

Occurs when there is a sudden drop in BOTH the systolic & diastolic pressures

Occurs when an individual moves from a lying to a sitting or to a standing position

Blood vessels fail to compensate for the change in position

Individual experiences- may last a few seconds Lightheadedness Dizziness Blurred vision

Factor affecting BLOOD PRESSURE

Heartbeat Condition of the arterial system Elasticity of the arteries Volume of circulating blood Position

Factors which may Increase BP

Anxiety Nervousness Obesity Stimulant drugs Exercise Smoking Pain

Factors which can Decrease BP

Sleep Depressant drugs Shock Dehydration Hemorrhage Fasting

Sphygmomanometers Aneroid

Does not have a mercury column It has a round gauge Each line equals 2 mm of mercury Position at eye level Needle must start at 0 ZERO

Electronic Sphygmomanometers

Used in most health care facilities

Record blood pressure automatically after cuff is placed on patient

Will show reading in a digital display

Factors to Follow When taking a BP

American Heart Association recommends: Patient should be quite for at least 5

minutes Take 2 separate readings Wait at least 30-60 seconds between

readings

Continued Correct size and placement of the cuff Patient should be sitting or lying down Arm should be freely extended and free of

constricting clothes BP cuff must be deflated and free of any air BP cuff should be placed over directly over

the brachial artery Edge of cuff should sit 1” above the

antecubital space

http://www.google.com/imgres?hl=en&sa=X&biw=1366&bih=640&tbm=isch&prmd=imvns&tbnid=IFEQ7xLos8SQkM:&imgrefurl=http://medicalhemostat.blogspot.com/2010/05/radial-vs-femoral-access-closure-device.html&docid=hGGInBED30vDtM&imgurl=http://www.ptca.org/images/radial_diagram.gif&w=198&h=225&ei=lOl6ULDVIojPrQGkoICoCQ&zoom=1&iact=rc&dur=233&sig=112863791002240014451&page=2&tbnh=175&tbnw=154&start=20&ndsp=22&ved=1t:429,r:0,s:20,i:137&tx=47&ty=78

How to take a Blood Pressure Person should be comfortably seated or

lying down Should have rested for 10-15 minutes prior

to the reading Arms that are paralyzed, injured, have an

IV or shunt should not be used**** never take BP the same side as a mastectomy

Infant blood pressures can be taken on the leg

Blood Pressure Procedure Excess air should be squeezed out of the

cuff Cuff should be placed snugly on upper

arm. Gauge should be easily visualized Valve should be closed, but easily able

to be opened

Blood Pressure ProcedureTwo techniques for obtaining the pressure TECHNIQUE #1 Find radial pulse. Pump cuff till pulse no longer

palpated. Then pump another 30 mm Hg higher Place diaphragm of stethoscope on brachial

artery about ½ - 1 inch above the elbow Release the valve and listen for the two

measurements - slowly deflating the cuff.

Blood Pressure ProcedureTECHNIQUE #2 Find brachial artery and put diaphragm

over the site. Pump cuff to 120 mm Hg and listen for the

heart beat. If it is heard, pump another 30 mm Hg and listen again.

When the pulse is no longer heard, then pump another 30 mm Hg and slowly deflate, listening for the two measurements.

Reporting & Recording Reading If reading is uncertain, wait 30 seconds

to 1 minute before remeasuring Record the reading and report any

abnormalities If the B/P reading is outside of the

normal limits, retake it before reporting the value to a supervisor to be certain of accuracy

Blood Pressure Skills Lab OBJECTIVE:

Successful completion of Skills Check list after demonstrating proficiency in this hands on lab experience

1. Students will have the opportunity to practice taking and recording BP as recommended by the AHA

2. Successful completion of the skills check list is required to pass this skills section of this lesson

Temperature Conversions

Fahrenheit to Celsius C=(F-32)/ 1.8

Celsius to Fahrenheit F=(C X 1.8) + 32