Lab 6: Blood Pressure & Pulse Lab

MAP =

Diastolic Pressure + ⅓(Pulse Pressure)

70-76

Normally pulse rate equals heart rate and pulse averages between ____-____ beats per min at rest.

2/4

A healthy person will be graded as ______ even in areas with a strong pulse such as the carotid artery.

Pulse pressure =

Systolic Pressure - Diastolic Pressure

Describe the information obtained from obtaining a pulse rate.

Taking the pulse allows us to find out what the patient's heart rate is and to assess the strength, regularity, and character of the pulse. Irregularities might indicate a heart problem and must be investigated. Taking the pulse also provides an initial recording (a 'baseline') that will enable us to compare future measurements and monitor changes in our patient's condition.

difference

The _______________ between the systolic and diastolic pressures is the pulse pressure.

systolic and diastolic

The difference between __________ and ___________ pressures equals the pulse pressure

contracts

The entry of blood into the arteries each time the heart _____________ causes the pressure within them to rise.

sphygmomanometer

consisting of an inflatable cuff and a mercury or aneroid manometer.

Mean arterial pressure (MAP)

equals diastolic pressure plus 1/3 pulse pressure; pressure that drives blood through the vascular system.

Mean Arterial Pressure (MAP)

pressure that propels blood to tissues

blood pressure

refers to the pressure exerted by the blood against the walls of the blood vessels

Name the instruments used when obtaining blood pressure.

sphygmomanometers are used in conjunction with a stethoscope.

pulse

the alternating surges of pressure in an artery that occur with each contraction (systole) and relaxation (diastole) of the left ventricle.

arteries

Blood pressure is highest in the ________ and decreases steadily through the vascular system until it returns to the heart.

Define the term pulse pressure

Blood pressure readings are given in two numbers. The top number is the maximum pressure your heart exerts while beating (systolic pressure), and the bottom number is the amount of pressure in your arteries between beats (diastolic pressure). The numeric difference between your systolic and diastolic blood pressure is called your pulse pressure. For example, if your resting blood pressure is 120/80 millimeters of mercury (mm Hg), your pulse pressure is 40.

Blood pressure is determined by

The inflatable cuff (Riva Rocci cuff) lets you apply external pressure in a circumferential ring around the upper arm. When the pressure is great enough, it forcibly closes the brachial artery (see image below). The pressure of the cuff is slowly decreased; when the cuff pressure is lower than systolic pressure but higher than diastolic pressure, the brachial artery is partially open. As blood flows through this partially compressed artery, the blood flow is turbulent. Turbulent blood flow generates sounds known as the Korotkoff sounds. The stethoscope is used to auscultate the Korotkoff sounds through the artery. Once the externally applied pressure falls below the diastolic/resting pressure, the artery stays open all the time and blood flow is silent.

diastolic

The lowest pressure obtained during each cardiac cycle is called the ____________ pressure

systolic

The peak pressure obtained during each cardiac cycle is called the __________ pressure