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From Glancy DL. J La State Med Soc 2007; 159:5-7

Elias Hanna, MD, Cardiology. From Glancy DL. J La State Med Soc 2007; 159:5-7. Hypokalemia:. ST depression with prominent T (actually U) and prolonged QT when K<2.5-3. Flat T with K~3. Hypokalemia: -T progressively flattens -U wave more and more prominent (looks like T)

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From Glancy DL. J La State Med Soc 2007; 159:5-7

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  1. Elias Hanna, MD, Cardiology From Glancy DL. J La State Med Soc 2007; 159:5-7

  2. Hypokalemia: ST depression with prominent T (actually U) and prolonged QT when K<2.5-3 Flat T with K~3

  3. Hypokalemia: -T progressively flattens -U wave more and more prominent (looks like T) -ST-segment more and more depressed Large U wave simulates and hides T wave with severe hypokalemia, the ST-T pattern may mimick: ST-segment depression with a flat or upright wide “T” wave (actually U) and a prolonged “QT” interval (actually QTU)

  4. On the other hand, the pattern of T inversion is not seen with hypokalemia:

  5. Hanna EB, Glancy DL. CCJM June 2011 ST depression ischemia ST elevation ischemia

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