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12-lead EKG Interpretation > QT Interval and Abnormalities > Flashcards

QT Interval and Abnormalities Flashcards

1
Q

Long QT interval

What should be used instead? Formula?

A

> 450 ms in men

> 460 ms in women

Use QTc (corrected QTc)

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2
Q

Long QT can lead to ___

A

torsades de pointes

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3
Q

DDX prolonged QTI

A

Medications (anti-arrhythmic, antibiotics, antipsychotics, antidepressants, antiemetics

ischemia

hypokalemia, hypomagnesemia, hypocalcemia

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4
Q

Short QT interval

DDX?

A

< 350 ms

HYPERkalemia, HYPERmagnesemia

Digoxin toxicity

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12-lead EKG Interpretation (7 decks)

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