040-444 Dumps 040-444 Braindumps 040-444 Real Questions 040-444 Practice Test 040-444 Actual Questions ACSM 040-444 ACSM Registered Clinical Exercise Physiologist https://killexams.com/pass4sure/exam-detail/040-444 (From Goldberger AL: Clinical Electrocardiography: A Simplified Approach, 6th ed. St. Louis, Mosby, 1999, p 70.) Answer: C QUESTION: 356 Subendocardial ischemia usually produces A. ST-segment elevation. B. ST -segment depression. C. Q waves. D. U waves. Answer: B QUESTION: 357 In the ECG strip shown below, which arrhythmia is present? A. Premature ventricular contractions. B. Ventricular tachycardia. C. Ventricular trigeminy. D. Ventricular bigeminy. (From Goldberger AL: Clinical Electrocardiography: A Simplified Approach, 6th ed. 51. Louis, Mosby, 1999, p 167.) Answer: B QUESTION: 358 In the ECG strip shown below, which arrhythmia is indicated? 109 A. Atrial flutter. B. Atrial fibrillation. C. Premature atrial contractions. D. Atrial tachycardia. Answer: A QUESTION: 359 Abnormally tall and peaked T waves suggest which of the following? A. Hyperkalemia. B. Acute pericarditis. C. Acute MI. D. Hypokalemia. Answer: A QUESTION: 360 Which of the following conditions can prolong the QT interval? A. Hypokalemia and hypercalcemia. B. Hyperkalemia and hypercalcemia. C. Hypocalcemia and hypokalemia. D. Hypocalcemia and hyperkalemia. Answer: D QUESTION: 361 Differentiation between supraventricular and ventricular rhythm is made on the basis of the 110 A. Duration (width) of the QRS complex and the presence or absence of P waves. B. Appearance of the ST segment. C. Amplitude of the U wave. D. Duration of the PR interval. Answer: A QUESTION: 362 Which of the following is one cause of a wide QRS complex? A. Hypokalemia. B. Defective intraventricular conduction. C. Right atrial enlargement. D. Abnormal ST segment Answer: B QUESTION: 363 In response to various stimuli, movements of ions occur, causing the rapid loss of the internal negative potential. This process is known as A. Polarization. B. Repolarization. C. Automaticity. D. Depolarization. Answer: D QUESTION: 364 Digitalis effect refers to A. Scooped-out depression of the ST segment produced by digitalis. B. Elevation of the PR interval produced by digitalis. C. Shortening of the QT interval produced by digitalis. D. Prolongation of the QRS complex produced by digitalis. 111 Answer: A QUESTION: 365 Tall, positive T waves may be caused to all of the following EXCEPT A. Hyperacute phase of MI. B. LVH. C. Acute pericarditis. D. Hypocalcemia. Answer: D QUESTION: 366 T In the ECG strip sho'A I1 below, what abnormalities are indicated? A. Left atrial enlargement and LVH. B. Right atrial enlargement and right ventricular hypertrophy. C. Left anterior fascicular block and left posterior h,scicular block. D. Subendocardial ischemia and infarction Avr V1 V4 Avl V2 V5 Avf V3 V6 Answer: A 112 QUESTION: 367 Right-axis deviation may be caused by A. Acute pericarditis. B. Right atrial enlargement. C. Chronic obstructive pulmonary disease. D. Cardiomyopathy. Answer: C QUESTION: 368 In atrial flutter, the stimulation rate is approximately A. 75 bpm B. 125 bpm C. 200 bpm D. 300 bpm Answer: D QUESTION: 369 Myocardial cells can be excited in response to all of the following stimuli EXCEPT: A. Electrical B. Chemical C. Mechanical D. Emotional Answer: D QUESTION: 370 The P wave on the ECG can be A. Negative 113 B. Positive C. Isoelectric D. 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