5. What is the primary purpose of adefibrillator?Oa. To increase blood flow to the heartOb. To decrease blood pressureOc. To regulate the heart rhythmOd. To treat anaemia

The primary purpose of a defibrillator is to regulate the heart rhythm. A defibrillator is a medical…

Answered: 5. What is the primary purpose of a…

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter23: Insertion And Maintenance Of Intravenous Lines

Section: Chapter Questions

Problem 9SEPT

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A characteristic of blood circulation through or to the heart is that: a. the superior vena cava conveys blood to the head. b. the inferior vena cava conveys blood to the right atrium. c. the pulmonary arteries convey blood from the lungs to theleft atrium. d. the pulmonary veins convey blood into the left ventricle. e. the aorta branches into two coronary arteries that conveyblood from heart muscle.
Contraction of __________ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. ventricles
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 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.
The ________ layer secretes chemicals that help to regulate ionic environments and strength of contraction and serve as powerful vasoconstrictors. pericardial sac endocardium myocardium epicardium
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves opening and closing. Although much of the heart has been removed from this gif loop so the chordae tendineae are not visible, why is their presence more critical for the atrioventricular valves (tricuspid and mitral) than the semilunar (aortic and pulmonary) valves?
Listen to this CDC podcast (http://openstaxcollege.org/l/CDCpodcast) to learn about hypertension, often described as a silent killer. What steps can you take to reduce your risk of a heart attack or stroke?
The pulmonary trunk and aorta are derived from which primitive heart structure? bulbus cordis primitive ventricle sinus venosus truncus arteriosus
Which of the following slows the heart rate and AV conduction? A. Resting membrane potential B. Parasympathetic nervous system C. Pacemaker D. Phase 0
An electrical difference across the fibers of the heart is called the A. Absolute refractory period B. Resting membrane potential C. Action potential D. Depolarization
An especially leaky type of capillary found in the liver and certain other tissues is called a ________. capillary bed fenestrated capillary sinusoid capillary metarteriole
8. What is the primary purpose of a cardiac monitor? Oa. To measure blood pressure Ob. To measure oxygen saturation in the blood Oc. To measure heart rate and rhythm Od. To measure respiratory rate

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5. What is the primary purpose of a defibrillator? Oa. To increase blood flow to the heart Ob. To decrease blood pressure Oc. To regulate the heart rhythm Od. To treat anaemia