Answered: 25. The ECG changes due to hypokalemia…

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter6: Electrocardiography

Section: Chapter Questions

Problem 2SEPT

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The heartbeat includes: a. the systole when the heart relaxes and fills. b. the diastole when the heart contracts and empties. c. pressure that causes the AV valves to open, filling the ventricles. d. rising pressure in the ventricles to open the AV valves and close the SL valves. e. the lub sound when the SL valves open and the dub sound when the AV valves close.
Which portion of the ECG corresponds to repolarization of the atria? P wave QRS complex T wave none of the above: atrial repolarization is masked by ventricular depolarization
The coronary arteries branch off of the ________. aortic valve ascending aorta aortic arch thoracic aorta
An especially leaky type of capillary found in the liver and certain other tissues is called a ________. capillary bed fenestrated capillary sinusoid capillary metarteriole
Characteristics of veins and venules are: a. thick walls. b. large muscle mass in the walls. c. a large quantity of elastin in the walls. d. low blood volume compared with arteries. e. one-way valves to prevent backflow of blood.
The right and left brachiocephalic veins ________. drain blood from the right and left internal jugular veins drain blood from the right and left subclavian veins drain into the superior vena cava all of the above are true
The tricuspid valve lies between the A. Right atrium and the right ventricle B. Left ventricle and the aorta C. Right ventricle and the pulmonary artery D. Left atrium and the left ventricle

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25. The ECG changes due to hypokalemia is? a. Tall peaked T wave b. Prominent U wave c. ST segment elevation d. Widened QRS complex