111. A healthy 23-year-old woman engages in strenuous dynamic exercise for 30 minutes. Which of the following is the most likely mechanism of the change in coronaryblood flow in this woman during exercise?0000A) Autonomic-mediated vasodilation of coronary vesselsB) Increased upstream perfusion pressureC) Metabolic vasodilation of coronary vesselsD) Myogenic reflexE) Release of endothelin

Answered: Image /qna-images/answer/9136dfcf-0963-4bef-8bf3-c5363bb212d2.jpg

Answered: 111. A healthy 23-year-old woman…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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A client with hypovolemic shock has a urine output of 15 ml/hr. The nurse understands the client's altered urine output can be attributed to which compensatory mechanism? Question 19 options: a) Stimulation of cardiac-adrenergic receptors, leading to increased cardiac output b) Stimulation of the RAAS pathway combined with the effects of vasopressin c) Activation of the sympathetic nervous system, causing a reduction in vascular permeability d) Movement of interstitial fluid to intravascular space, increasing renal blood flow
Question 1 a) Briefly explain about the cardiac cycle b) Differentiate between 1st and 2nd heart sound (based on image) c) Explain the Frank-starlings's law of heart that is related with venous return
33.Please Identify the correct order of the blood flow pathway? (A) the pulmonary arteries carry oxygenated blood away from the pulmonary trunk (B) the left ventricle pushes blood through the aortic valve (C) the tricuspid valve takes blood from the left atrium to the left ventricle (D)superior vena cava, opening of coronary sinus, and inferior vena cava take blood to the left atrium
120 A 60-year-old woman with a 15-year history of hypertension and diabetes mellitus suddenly develops left-sided weakness at work and is brought to the hospital for evaluation. Three days later, CT scan of the head without contrast as shown is obtained. Occlusion of which of the following arteries best explains the abnormalities seen on the CT scan? OA) Anterior cerebral B) Middle cerebral C) Middle meningeal OD) Posterior cerebral R L
A patient with a suspected myocardial infarction is brought to the emergency department. Which diagnostic test is most appropriate for confirming the diagnosis? A) Echocardiogram B) Troponin level C) Electrocardiogram (ECG) D) Chest X-ray
Which of the following is most likely to cause a decrease in blood pressure (BP)? O a) A decrease in parasympathetic activity O b) Activation of the cardioacceleratory centre (CAC) O c) Activation of the renin-angiotensin system (RAS) O d) An increase in blood vessel diameter
91. In an experimental animal, the diameter of a precapillary arteriole is increased in a muscle vascular bed. Which of the following is most likely decreased in this animal? O A) Arteriolar resistance B) Capillary blood flow C) Capillary filtration rate D) Capillary hydrostatic pressure E) Vascular conductance
Local control of blood flow through a tissue a) maintains a blood flow independent of changes in blood pressure b) is controlled via a relaxation or contraction of precapillary sphincters c) is controlled by changes in oxygen levels in the tissue d) is controlled by changes in carbon dioxide levels in the tissue
Time remaining: 01:59:56 Nursing Kayla Christianson, CMA, has been employed six years by the cardiology practice of three physicians. She is a graduate of a CAAHEP-accredited school. Furthermore, Kayla received extensive hands-on training performing ECGs while doing her required externship. Kayla has completed an ECG ordered by Dr. Hsu for Mrs. Warner, a 76-year-old patient. Dr. Hsu, Kayla’s boss, telephoned her explaining that he was behind schedule doing rounds at the hospital. He asked her to do him a favor and interpret Mrs. Warner’s ECG, sign his name, and fax the report to Mrs. Warner’s referring internist, who is expecting the results. Given the scope of Kayla’s education, training, and years of experience as a CMA, would this “favor” fall within the AAMA guidelines of her responsibilities? Would any portion of Dr. Hsu’s request fall within the guidelines? If so, which portion(s)? Is an exception to these guidelines ever allowed? How should Kayla respond to Dr. Hsu?
https://www.youtube.com/watch?v=t0IngUYN2OA https://www.youtube.com/watch?v=pPxnIh_WTb8 Part1 1) How would the BP of an anxious patient visiting a doctor be different than if the patient is calm? 2) In atherosclerosis, plaque builds up inside the arteries. How would this affect BP? Is this an example of hypertension or hypotension? Part 2: The circulatory system has 5 functions. · Highlight the statements below that are only functions of the circulatory system. It carries cells that help to fight diseases. It gives structure and support to the body. It carries waste products to the urinary system. It carries carbon dioxide from cells to the lungs. It maintains body posture. It carries nutrients from the digestive system to other cells. It carries oxygen from the lungs to other cells. · The list gives some structures in the blood and circulatory system. Heart, artery, red blood cell, ventricle, capillary, plasma, vein, white blood…
Relaxation of precapillary sphincters: a) increases blood flow through ateriovenous shunt b) increases hydrostatic pressure at the arteriole end of the capillary c) reduces the quanityt of blood serving that body region d) is directly caused by the parasympathetic nervous system
118. A 21-year-old man faints while having his blood drawn. Vasovagal syncope is suspected. An ECG during the episode would most likely show which of the following patterns? PR Interval QRS Duration RR Interval unchanged 00000 A) B) (C) OR) OE) unchanged unchanged unchanged 物

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