ml/min. 2. Which of the following has the greatest effect on blood flow? You correctly answered: a. blood vessel radius 3. Which of the following would not result in a decrease in the blood vessel radius? Your answer : b. plaque formation in the artery wall Correct answer: c. vasodilation 4. The diameter of the blood vessel is the same as Your answer : d. half the radius of the blood vessel. Correct answer: b. two times the radius of the blood vessel. 5. The opening of the blood vessel where
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KEVIN MCEWAN Q1) Explain the reason why pre-activity health screening is necessary Pre activity health screening is used to highlight health problems that may be aggravated by physical exercise. A fitness instructor can then assess and prescribe the correct fitness plan for the individual. Screening takes place in the form of a
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Patient who have AF tend to have larger left atria and larger pulmonary veins which could potentially lead to the further propagation of AF. As the cardiac remodelling process continues‚ the changes in the size and shape of the ventricle become more exaggerated‚ cardiac function deteriorates and heart failure ensues
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testing in pulmonary artery hypertension Antiarrhythmic actions: Slows conduction time through the AV node‚ interrupting the re-entry pathways through the AV node‚ restoring normal sinus rhythm Myocardial perfusion scintigraphy: Adenosine also causes coronary vasodilation and increases blood flow in normal coronary arteries with little to no increase in stenotic coronary arteries; thallium-201 uptake into the stenotic coronary arteries will be less than that of normal coronary arteries revealing
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the play‚ where Dr Stockmann discovers that the corruption of the waters feeding the Baths is also in the minds of the townspeople who oppose the closure of “the town’s life-blood”. The fact Stockmann and Billing refer to the Baths as the “main artery of the town’s life-blood”‚ “the nerve centre of the town” and “the town’s pulsating heart” metaphorically links the Baths to vital organs in the human body‚ an appropriate image for a doctor whose job it is to assist the health of individuals in any
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blood round the body to give it the energy and oxygen it needs. As the blood moves‚ it pushes against the sides of the blood vessels. The strength of this pushing is your blood pressure. If the blood pressure is too high‚ it puts extra strain on your arteries (and your heart) and this may lead to heart attacks and strokes. Having high blood pressure (hypertension) is not usually something that you feel or notice. It does not tend to produce obvious signs or symptoms. The only way to know what your blood
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(Levophed) beginning at 2 mcg/min and titrated to keep systolic blood pressure greater than 100 mm Hg. A subclavian triple lumen catheter was inserted and verified by chest x-ray for correct placement. An arterial line was placed in the right radial artery to closely monitor the patient’s blood pressure during the usage of the vasopressor therapy. (Learning Objectives 6 and 7) a. What predisposed the patient to develop septic shock? b. What potential findings would suggest that the patient’s septic
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Angiotensin-II Receptor Blockers (ARBs): ARBs are a class of drugs that halt the action of Angiotensin-II by blocking the binding between Angiotensin-II and Angiotensin-II receptors. This leads to reduced blood pressure as the blood vessels get dilated. This reduced blood pressure helps to ease heart failure as it now becomes easier for the heart to pump this blood. Commonly used ARBs are Irbesartan‚ candesartan‚ Losartan‚ Olmesartan‚ Telmisartan‚ valsartan‚ and azilsartan. Mechanism Angiotensin-II
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The human heart is a very interesting and complicated part of the body‚ that some struggle to understand. Blood is also a stimulating part of the human body that is really great to learn about‚ as well as blood pressure. Heart disease is a very common disease that many people face‚ so it is important that people are educated about it. There are two sides to the heart and each side receives and pumps different kinds of blood. The left side of the heart is more muscular because it has to pump blood
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Control mechanisms – Local + CNS Higher CNS centers (cerebral cortex‚ limbic system‚ hypothalamus)-> brain stem -> spinal cord -> respiratory system To control respiration‚ what cells should you actually control? -control skeletal muscles involves in inhalation and exhalation These cells control respiratory minute volume – how do you control them? -respiratory minute volume involves the freq. and volume of a respiratory cycle -motor neurons control skeletal muscle -both voluntary
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