Ch 18 LAB terms
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This 4 page Test Prep (MCAT, SAT...) was uploaded by Gretchen Pierce on Friday January 30, 2015. The Test Prep (MCAT, SAT...) belongs to 10617 at University of Alabama - Tuscaloosa taught by Jason Pienaar in Spring2015. Since its upload, it has received 118 views.
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Date Created: 01/30/15
Sl bradychardia S2 Heart rhythm auscultation Additional heart sounds intercostal spaces Heart murmur aortic area Baroreceptor re ex Pulmonic area pulse palpation Tricuspid area Graded pulses Mitral area Blood pressure Heart rate cardiac output tachycardia Peripheral Resistance 1a heart rate is less than 60 per minute rst heart sound caused by closure of the mitral and tricuspid valves pattern and regularity with which it beats second heart sound caused by closure of the aortic and pulmonary valves in addition to Sl and S2 83 happens after S2 S4 prior to Sl process of listening to heart sounds clicking or quotswooshingquot Cause by valve leaking regurgitation or by valve that has lost its pliability stenosis spaces between the ribs parasympathetic nervous system triggers a re exive drop in blood pressure and heart rate sounds of aortic valve located on second intercostal space at right sternal border process of feeling the pulse with the fingertips pulmonic valve second intercostal space at left sternal border Grade 04 pulse is absent Grade 14 pulse is barely or only lightly palpable Grade 24 pulse is normal Grade 34 pulse is quite strong Grade 44 pulse is bounding and visible through the skin best heard over the fourth intercostal space at left sternal border pressure exerted by the blood on the walls of the blood vessels fifth intercostal space inline with the nipple determines blood pressure amount of blood each ventricle pumps in 1 minute product of stroke volume number of heartbeats per minute checked during auscultation determined blood pressure any impedance to blood ow encountered in the blood vessels determined by degree of vasoconstriction vasodilation in systematic circulation heart rate is more than 100 per minute 1b Blood volume ECG T wave Sphygmomanometer R R interval Systolic pressure P R interval Diastolic pressure S T segment normal blood pressure Q T interval Peripheral Vascular Disease normal sinus rhythm ankle brachial indeX AB1 dysrhythmia arrhythmia electrocardiogram ECG ECG P wave ECG QRS compleX 2a final wave and shows the depolarization of the right and left ventricles the amount of blood found in the blood vessels at any given time in uenced by uid volume controlled by kidneys and hormones period of time between the two R waves arterial blood pressure is measured with this instrument period from beginning of the P wave to beginning of the R wave pressure in the arteries during ventricular systole larger top number between 100120 mmHg between the end of the S wave and the beginning of the T wave pressure in the arteries during ventricular diastole bottom smaller number between 6080 mmHg beginning of the Q wave to the end of the T wave 12080 mmHg normal pattern seen on the ECG SA node is pacing the heart at a rate between 60 and 100 BPM any disease of the arteries outside of the brain and coronary circuit arteries of the legs any deviation from the normal sinus rhythm test to assess the severity of peripheral vascular disease compares blood pressure in the legs with the blood pressure in the arms Recording of the electrical activity of the heart P shows the depolarization of the cells of the right and left atria small b c of the small amount of cells in the atria depolarization of the right and left ventricles Q downward de ection R large upward de ection S final downward de ection 2b