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### 11 Cards in this Set

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 Define sphygmomanometer used to measure arterial blood • consists of an inflatable cuff connected to a pressure gauge Define blood pressure force exerted by blood on the walls of the blood vessels • expressed in millimeters of mercury (mm Hg) • must be regulated to meet requirements for blood flow to the body organs. • driving force for blood flow Define Korotkoff sounds sequence of sounds produced as the cuff pressure is decreased from systolic to diastolic pressure • divided into 5 phases: 1. brief loud tapping 2. longer, softer murmurs 3. loud thumping sounds 4. soft muffled sounds 5. silence Define mean arterial pressure the average blood pressure in the aorta and large arteries. • The MAP is related to the cardiac output (CO) and total peripheral resistance (TPR) according to the formula: MAP = CO x TRP Define pulse pressure the difference between the systolic and diastolic pressure (systolic P - diastolic P) Define systolic pressure pressure exerted on the arterial walls during ventricular contraction Define diastolic pressure lowest level of arterial pressure during a ventricular cycle High and Low blood pressure levels Systolic Pressure under 120 Diastolic Pressure under 80 Hypertension chronically elevated arterial blood pressure, the heart works harder to pump blood around the body Equation to calculate MAP Diastolic Pressure + (Pulse Pressure/3) How to take your blood pressure: Subject must sit on the table with their left or right arm resting on the table at the same level with their heart. Put the cuff of the sphygmomanometer around the arm just above the elbow. Palpate the pulse in the brachial artery and close the screw valve. Inflate the cuff while listening to the brachial artery. Inflate the cuff about 20mmHg above the point where the pulse disappears. Place the diaphragm of the stethoscope over the brachial artery open screw valve slightly to slowly release pressure rate of 3 mmHg per second. Watch the pressure gauge while listening to the artery. Record systolic pressure as the point where you hear the 1st Korotkoff sound. Diastolic pressure is the point where the sound disappears.