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Answer DV Case 4: Difference between revisions
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m (New page: # The rhythm shows inverted P-waves in the inferior leads indicative of atrial rhythm. # The answer on this question is difficult. An atrial rhythm can be the result of SA block. This ECG ...) |
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[[Image:DVA0004.jpg|700px|thumb|left|DV Case 4. Click on image for enlargement.]] | |||
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==Questions== | |||
This ECG shows pauses in the heart rhythm. The patient felt light headiness | |||
#What is the base rhythm? | |||
#Is there evidence for sino atrial block? | |||
#What is the cause of the pauses in the heart rhythm? | |||
#Is there a pacemaker indication? | |||
#what is your next step in your workup? | |||
==Answers== | |||
# The rhythm shows inverted P-waves in the inferior leads indicative of atrial rhythm. | # The rhythm shows inverted P-waves in the inferior leads indicative of atrial rhythm. | ||
# The answer on this question is difficult. An atrial rhythm can be the result of SA block. This ECG however cannot produce the proper answer. The use of beta-blockers for instance, could cause a marked lowering of the sinus rhythm, allowing for an atrial escape rhythm, which is slow as well. | # The answer on this question is difficult. An atrial rhythm can be the result of SA block. This ECG however cannot produce the proper answer. The use of beta-blockers for instance, could cause a marked lowering of the sinus rhythm, allowing for an atrial escape rhythm, which is slow as well. | ||