Dr. Smith's ECG Blog

OCTOBER 23, 2023

Edited by Bracey, Meyers, Grauer, and Smith A 50-something-year-old female with a history of an unknown personality disorder and alcohol use disorder arrived via EMS following cardiac arrest with return of spontaneous circulation. T wave alternans is a harbinger of cardiac instability and TdP. (3) No ischemic ST changes.

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Dr. Smith's ECG Blog

APRIL 15, 2019

Here was his initial ED ECG: There is sinus tachycardia at a rate of about 140 There is profound ST Elevation across all precordial leads, as well as I and aVL. If a patient presents with chest pain and a normal heart rate, or with shockable cardiac arrest, then ischemic appearing ST elevation is STEMI until proven otherwise.

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Dr. Smith's ECG Blog

FEBRUARY 2, 2017

Here is the ECG: Sinus tachycardia. If cardiac arrest from hypokalemia is imminent (i.e., Document in the patient's chart that rapid infusion is intentional in response to life-threatening hypokalemia." Document in the patient's chart that rapid infusion is intentional in response to life-threatening hypokalemia."

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Dr. Smith's ECG Blog

FEBRUARY 27, 2023

Descriptive analysis of the ECG in today's case reveals a regular, narrow tachycardia at ~130/minute , without clear sign of sinus P waves. But the rate is ~130/minute — which is a bit fast for sinus tachycardia. So IF this is sinus tachycardia with a sinoventricular rhythm — then we have to explain WHY the rate is this fast.

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Dr. Smith's ECG Blog

NOVEMBER 30, 2019

Is it ventricular tachycardia (VT) due to hyperK or is it a supraventricular rhythm with hyperK? Here are other posts on hyperK, large calcium doses for hyperK, and ventricular tachycardia in hyperK Weakness, prolonged PR interval, wide complex, ventricular tachycardia Very Wide and Very Fast, What is it? How would you treat?

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Dr. Smith's ECG Blog

JULY 27, 2023

His prehospital ECG showed "inferior" ST depression and high voltage, with tachycardia. I suspected no OMI, that this could be due to LVH plus tachycardia. Conclusion: Type II MI probable due to hypoxia and tachycardia from resp arrest and amphetamine use. On arrival to the ED, the patient was diaphoretic, tachycardic.

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Dr. Smith's ECG Blog

NOVEMBER 28, 2022

The ECG shows sinus tachycardia, a narrow, low voltage QRS with alternating amplitudes, no peaked T waves, no QT prolongation, and some minimal ST elevation in II, III, and aVF (without significant reciprocal STD or T wave inversion in aVL). It is difficult to tell if there is collapse during diastole due to the patient’s tachycardia.

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