Peaked T waves: Difference between revisions
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==Electrocardiographic Examples== | ==Electrocardiographic Examples== | ||
Shown below is the progression of [[T wave]] changes in hyperkalemia: | |||
[[Image:Hyperkalemia2.jpg|500px|Peaked T waves]] | [[Image:Hyperkalemia2.jpg|500px|Peaked T waves]] | ||
Shown below is an EKG showing peaked T waves in the lateral leads: | |||
[[Image:Hyperkalemia1.jpg|500px|Peaked T waves]] | [[Image:Hyperkalemia1.jpg|500px|Peaked T waves]] | ||
Shown below is an EKG showing symmetric, narrow, peaked T waves in the lateral leads: | |||
[[Image:Hyperkalemia.jpg|500px|Tall, symmetric, narrow based T waves in a hyperkalemic patient.]] | [[Image:Hyperkalemia.jpg|500px|Tall, symmetric, narrow based T waves in a hyperkalemic patient.]] | ||
Revision as of 01:38, 24 July 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Peaked T waves refers to the pointed, tall, peaked shape of T waves on the EKG in the setting of certain abnormalities such as hyperkalemia.
Causes
- Earliest sign of hyperkalemia
- Occurs with K > 5.5 meq/li
- Differential diagnosis of this EKG change includes the T wave changes of bradycardia or stroke.
- Prominent U waves and QTc prolongation are more consistent with stroke than hyperkalemia.
Electrocardiographic Examples
Shown below is the progression of T wave changes in hyperkalemia:
Shown below is an EKG showing peaked T waves in the lateral leads:
Shown below is an EKG showing symmetric, narrow, peaked T waves in the lateral leads:
