15. Which of the following statements about Cardiogenic shock is/are CORRECT? It is not associated with change in blood volume, but decrease in BP. b. a. One of the causes could be myocardial infarction It is associated with the inability of the heart to pump blood consistent with the perfusion needs of body tissues. d.. All of the above are correct. C.

15. Which of the following statements about Cardiogenic shock is/are CORRECT? It is not associated with change in blood volume, but decrease in BP. b. a. One of the causes could be myocardial infarction It is associated with the inability of the heart to pump blood consistent with the perfusion needs of body tissues. d.. All of the above are correct. C.

Essentials of Pharmacology for Health Professions

7th Edition

ISBN:9781305441620

Author:WOODROW

Publisher:WOODROW

Chapter25: Cardiovascular Drugs

Section: Chapter Questions

Problem 15CRQ

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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.
1. Age-related changes in the heart’s electrical conduction system such as fibrosis and loss of specialized cells and fibers in the SA node and fibrosis of AV node and left anterior fascicle contribute to the development of (choose all that apply): a. Normal heart rate at rest b. Increase in atrial ectopy (irregular, rapid heartbeats) c. Increase in episodes of bradycardia (slow heart rate) d. Increased incidence of heart block. 2. Describe 3 age-related changes in the lungs that have a negative impact on preventing lung infections.
17. Match the ECG wave information with the appropriate action potential in the following columns: a.P wave e.Depolarization of the AV node b.QRS complex f.Repolarization of ventricles c.PR segment g.Depolarization of ventricles d.T wave h.Depolarization of the atria Match the itmes in the left columns to the right columns.
5. SHEEP HEART DISSECTION a. Explain the difference in size and wall thickness of the ventricles. b. Describe the function of the chordae tendineae. c. Circle the terms that describe the chordae tendineae. elastic nonelastic thick thin pliable stiff opaque transparent d. Circle the terms that apply to the semilunar valves. elastic nonelastic thick thin pliable stiff opaque transparent e. Circle the terms that apply to the atrioventricular valves. elastic nonelastic thick thin pliable stiff opaque transparent
20. Signs of unstable tachycardia may include all of the following EXCEPT: A. Ischemic chest discomfort B. Acute heart failure C. Hypotension D. Abdominal tenderness.
30. Antagonists are compound that a. Prevent synthesis of new receptors b. Prevents synthesis of hormones c. Bind to receptor, activating it d. Bind to a receptor, but do not activate it e. More than one answer is correct 33. When a hormone binds to an extracellular receptor, a. DNA produces mRNA b. The receptor-hormone complex causes ion channels to open or close c. The cell's response is faster than when a hormone binds to an intracellular receptor d. Answer a and b e. Answer b and c 38.A a. Fibrinogen clot is formed during the process of coagulation b. Fibrin c. Prothrombin d. Thromboplastin e. Thrombin 41. Electric signals move through the mammalian heart in a particular order. Which order is correct? a. SA node == AV node == atrial muscle == bundle of His = purkinje fibers 3%3D %3D%3D ventricular muscle b. SA node == atrial muscle == AV node == bundle of His = ventricular muscle = 3%3D %3%3D purkinje fibers c. SA node== atrial muscle==ventricular muscle== AV node == bundle of His…
1. Match the heart structure with the description. Mediastinum A. The thinner, more delicate membrane that forms a double layer around the heart. Арех. B. Middle layer of the heart responsible for the pumping action of the heart and is composed of cardiac muscle tissue C. Valve located between the right atrium and right ventricle - closes to prevent blood from going back into right atrium Fibrous pericardium Serous pericardium D. Anatomical region that extends from the stemum to the vertebral column, from the first rib to the diaphragm, and between the lungs. Location of the heart. Epicardium E. Chamber that receives deoxygenated blood from the right atrium and pumps it out to the pulmonary trunk through the pulmonary semilunar valve. F. Smooth, innermost layer of the heart wall in direct contact with the blood being pumped. Myocardium Endocardium G. Wrinkled pouch like structure on the anterior surface of each atrium - increase the capacity of the atria Auricle H. The pointed tip of…
45. Which of the following is/are true concerning the opening and closing of thecardiac valves? A. valves operate according to the pressures on either side of the valve B. valve operation is constantly being controlled by the medulla oblongata C. valve operation is determined directly by the cardiac action potential (electrical currents control the opening and closing of the valves.) D. valve operation is directly controlled by the papillary muscles within theventricular wall. E. None of the above is correct.
22. Ventricular Contractility increases in response to circulating Epinephrine. What factor is responsible for this increase in the force of the contraction? A.the Na+ current (depol.) B.the Ca++ current which causes the plateau (trigger Ca++) C.the K+ current D.a decreased Central Venous Pressure 23. Normally, Systole takes up about 80% of the Cardiac Cycle. A. true B. false 24.Which of the following is not an affect of circulating Angiostensin II (AII)? A.thirst B.selective vasodilation C.increased peripheral vascular tone & resistance D.the release of Aldosterone from the adrenal cortex 25. Blood Volume affects blood pressure because it directly increases: A.Total Peripheral Resistance B.Stroke Volume C.End Systolic Volume D.Central Venous Pressure 26. Atrial Naturetic Factor is released to adjust blood pressure. Which organ releases this hormone? A.the heart B.the kidneys C.the adrenal cortex
Which of the following describes a long term effect of regular exercise on the cardiovascular system?
1. The source of the electrical currents that you measured on the skin throughout a normal electrocardiogram is: a. regional differences in depolarization state between parts of the myocardium b. The SA node cells c. the opening and closing of the tricuspid and bicuspid valves d. depolarizations of the muscle and nerve cells close to the electrode site e. The AV node cells 2. Release or discharge from which of the following is likely to produce a slowing in the rate at which the AV node transmits a depolarization? a. Your coffee cup (caffeine) b. the posterior lobe of the pituitary gland (Oxytocin) c. the sympathetic nervous system d. the parasympathetic nervous system (vagus nerve) e. the medulla of the adrenal gland (epinephrine) 3.Which of the following is unlikely to affect the force of contraction of an individual ventricular myocyte (muscle cell)? a. the amount of…
4. A change in pulse pressure can be seen in a variety of medical conditions. What would you expect to happen to the pulse pressure in the following examples? a. In atherosclerosis there is a hardening of the arterial walls. Explain b. A damaged aortic semilunar valve does not seal properly and allows blood to flow back into the ventricle during diastole. Explain EXTENSIONS 1. Exercise for varying lengths of time and compare the blood pressure and pulse readings taken after each exercise period. You can run around the building, and attach the cuff upon returning. 2. Perform different types of exercise for the same amount of time and compare the blood pressure and pulse readings taken after each type of exercise. 3. Measure blood pressure 5, 10, and 15 minutes after stopping exercise, and compare readings as your heart returns to resting heart rate. 4. Measure blood pressure while lifting a weight with the opposite arm.