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Cardiology II EMT > week 6 quiz > Flashcards

week 6 quiz Flashcards

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1
Q
  1. The pain associated with an acute myocardial infarction:
    Select one:
    a. radiates to the left or right arm in the majority of cases.
    b. is not influenced by deep breathing or body movement.
    c. is most often described as a sharp sensation in the chest.
    d. is often relieved by two or three doses of sublingual nitroglycerin.
A

b. is not influenced by deep breathing or body movement.

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2
Q
  1. A right ventricular infarction is characterized by:
    Select one:
    a. ST-segment elevation greater than 1 mm in lead V5R and ST-segment depression in leads II, III, and aVF.
    b. ST-segment elevation greater than 1 mm in lead V4R and ST-segment elevation in leads II, III, and aVF.
    c. ST-segment depression greater than 2 mm in lead V4R and ST-segment elevation in leads II, III, and aVF.
    d. ST-segment elevation greater than 2 mm in lead V5R and ST-segment elevation in leads II, III, and aVF.
A

b. ST-segment elevation greater than 1 mm in lead V4R and ST-segment elevation in leads II,III, and aVF.

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3
Q
  1. Non-ST elevation myocardial infarction (NSTEMI):
    Select one:
    a. is not generally treated with cardiac catheterization.
    b. produces no signs of myocardial injury on the ECG.
    c. has a statistically worse outcome than ST elevation MI.
    d. produces no symptoms until permanent damage is done.
A

a. is not generally treated with cardiac catherization.

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4
Q 
182. Anatomically contiguous leads view:
Select one:
a. opposite walls of the heart.
b. only the lateral wall of the heart.
c. the same general area of the heart.
d. only the anterior wall of the heart.
A

c. the same general area of the heart.

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5
Q 
180. The inferior wall of the left ventricle is supplied by the:
Select one:
a. right coronary artery.
b. left coronary artery.
c. circumflex artery. 
d. left anterior descending artery.
A

a. right coronary artery.

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6
Q 
178. Which of the following leads provides the BEST view of the anterolateral wall of the left ventricle?
Select one:
a. V2 to V3 
b. V4 to V6
c. V4 to V5
d. V5 to V6
A

b. V4 to V6

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7
Q
  1. A right-sided ECG is indicated for patients who present with:
    Select one:
    a. a systolic BP greater than 150 mm Hg.
    b. ECG evidence of an inferior infarction.
    c. chest pain that occurs only during exertion.
    d. chest pain that is unresolved with nitroglycerin.
A

b. ECG evidence of an inferior infarction.

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8
Q 
181. The circumflex branch of the left coronary artery supplies the \_\_\_\_\_\_\_\_\_ wall of the left ventricle.
Select one:
a. septal
b. lateral
c. anterior 
d. inferior
A

b. lateral

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9
Q 
176. The precordial leads do NOT view the \_\_\_\_\_\_\_\_\_\_ wall of the heart.
Select one:
a. septal
b. inferior 
c. anterior
d. lateral
A

b. inferior

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10
Q 
179. Leads V1 to V3 allow you to view the \_\_\_\_\_\_\_\_ wall of the left ventricle.
Select one:
a. septal 
b. lateral
c. anterior
d. anteroseptal
A

d. anteroseptal

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11
Q
  1. Injury to the inferior wall of the myocardium would present with:
    Select one:
    a. T-wave inversion in leads V1 through V4.
    b. ST-segment elevation in leads II, III, and aVF.
    c. pathologic Q waves in leads V4 and V5.
    d. ST-segment depression in leads V5, V6, and aVL.
A

b. ST-segment elevation in leads II, III, and aVF.

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12
Q
  1. Infarctions of the inferior myocardial wall are MOST often caused by:
    Select one:
    a. blockage of the left coronary artery.
    b. acute spasm of the circumflex artery.
    c. occlusion of the right coronary artery.
    d. a blocked left anterior descending artery.
A

c. occlusion of the right coronary artery.

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13
Q 
177. When viewing leads V3 and V4, you are looking at the \_\_\_\_\_\_\_\_\_ wall of the \_\_\_\_\_\_\_\_\_.
Select one:
a. septal, heart. 
b. lateral, left ventricle.
c. anterior, left ventricle.
d. inferior, right ventricle.
A

c. anterior, left ventricle.

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14
Q
  1. Cardiac arrhythmias following an acute myocardial infarction:
    Select one:
    a. tend to originate from ischemic areas around the infarction.
    b. typically manifest as atrial fibrillation or atrial tachycardia.
    c. generally originate from the center of the infarcted tissues.
    d. are uncommon within the first 24 hours after the infarction.
A

a. tend to originate from ischemic areas around the infarction.

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15
Q 
175. Lead I views the \_\_\_\_\_\_\_\_ wall of the heart, while lead aVF views the \_\_\_\_\_\_\_\_\_ wall of the heart.
Select one:
a. lateral, inferior
b. septal, anterior
c. posterior, septal
d. anterior, inferior
A

a. lateral, inferior

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16
Q 
56. Which of the following patients would MOST likely present with atypical signs and symptoms of an acute myocardial infarction?
Select one:
a. 49-year-old obese man
b. 58-year-old diabetic woman 
c. 60-year-old man with anxiety
d. 71-year-old woman with hypertension
A

b. 58-year-old diabetic woman

17
Q
  1. Which of the following MOST accurately describes an acute myocardial infarction?
    Select one:
    a. Death of the myocardium secondary to spasm of a major coronary artery
    b. Injury to a portion of the heart muscle secondary to atherosclerotic disease
    c. Damage to the left ventricle following occlusion of the left coronary artery
    d. Necrosis of a portion of the myocardium due to a prolonged lack of oxygen
A

d. Necrosis of a portion of the myocardium due to a prolonged lack of oxygen

18
Q
  1. Patients who are experiencing an infarction of the right ventricle:
    Select one:
    a. should not be given IV fluid boluses.
    b. often require high doses of nitroglycerin.
    c. are usually hypertensive and tachycardic.
    d. may present with significant hypotension.
A

d. may present with significant hypotension.

19
Q
  1. Myocardial ischemia occurs when the heart muscle:
    Select one:
    a. is deprived of oxygen because of a blocked coronary artery.
    b. undergoes necrosis because of prolonged oxygen deprivation. Incorrect
    c. suffers oxygen deprivation secondary to coronary vasodilation.
    d. experiences a decreased oxygen demand and an increased supply.
A

a. is deprived of oxygen because of a blocked coronary artery.

20
Q
  1. ST elevation myocardial infarction (STEMI) should be suspected if:
    Select one:
    a. ST elevation greater than 1.5 mm in females is observed in leads V2 and V3.
    b. ST elevation greater than 1 mm in males is observed in leads V2 and V3.
    c. ST elevation greater than 1 mm in at least one contiguous lead is observed.
    d. ST elevation greater than 0.5 mm is observed in two or more contiguous leads.
A

a. ST elevation greater than 1.5 mm in females is observed in leads V2 and V3.

Cardiology II EMT (6 decks)

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