NSE 13A/B Study Guide - Final Guide: Blood Pressure, Bradypnea, Tachypnea
1 Sep 2018
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Hyperventilate: breathing too fast bc. of anxiety or fear. Hypoventilate: breathing too slow bc. of overdoes of narcotics: blood pressure (bp) Blood pressure (bp): force of the blood pushing against the side of the vessel wall. Results from 2 forces: force created by the heart as it pumps blood into the arteries and through the circulatory system, force of the arteries as they resist the blood flow. Systolic pressure: maximum pressure on artery during systole (contraction of left ventricular that pushes blood into arterial blood stream) Diastolic pressure: resting pressure that blood exerts constantly during diastole (period between each contraction when left ventricle is at rest and ventricles are filling) Pulse pressure: difference between the systolic and diastolic pressures and reflects the stroke volume. 5 factors: cardiac output (co): amount of blood the heart pumps through the circulatory system in a minute. Co= sv x heart rate: peripheral vascular resistance (pvr): opposition to blood flow through arteries.
