Differential Diagnoses

Differential Diagnoses: wide QRS, right axis deviation, tall R wave in V1

HPI: A 76-year-old woman presents to the ED with dyspnea and a syncopal episode. History is limited because the patient is listless and confused. The following ECG was obtained: Case…

Differential Diagnoses: can’t miss differentials for patients with chest pain and dyspnea

HPI: An 81-year-old with history of leukemia presents to the ED with dyspnea and pleuritic chest pain. He is tachycardic and tachypneic with clear lung sounds. The following ECG is…

Differential Diagnoses: hyperkalemia as a cause of ST segment elevation mimicking STEMI

Differential Diagnoses: ST segment elevation in aVR

A 74-year-old man presents to the ED for chest pain with exertion for the past 2 hours.  He appears diaphoretic and acutely ill. The following ECG is obtained:

Differential Diagnoses: how hypercalcemia mimics STEMI

A 62-year-old woman presents to the ED with altered mental status. She denies chest pain or dyspnea. The following ECG is obtained:

Differential Diagnoses: LVH with strain pattern vs. acute cardiac Ischemia

A 52-year-old man is brought in by EMS for chest pain. The following prehospital ECG was obtained:

Differential Diagnoses: ST segment elevation in aVR with multilead ST segment depression

A 74-year-old male presents to the ED with 1 day of epigastric pain, vomiting, and profuse watery diarrhea. The following ECG is obtained:

Differential Diagnoses: what do you look for when interpreting the ECG of patients with “new onset seizures”?

A patient with no known past medical history presents to the ED with ischemic chest pain. While waiting to be seen, he is noted to have a generalized seizure and…

Differential Diagnoses: over 15 causes of ST segment elevation…there is much more than STEMI

A 78-year-old woman with Alzheimer’s disease presents to the ED with dehydration and failure to thrive. She denies pain, diaphoresis, or dyspnea. The following ECG is obtained:

Differential Diagnoses: rollercoaster T waves

A 45-year-old woman presents to the ED with lethargy. BP = 100/50, HR = 60, RR= 12 & shallow. Her nurse thought her rhythm looked abnormal on the cardiac monitor…

Differential Diagnoses: must know causes of wide QRS complexes

A 15-year-old girl presents to the ED listless and tremulous. She is unable to provide a reliable history. Her heart rate is around 150 bpm and she is mildly tachypneic…

Differential Diagnoses: a 5 step approach to comprehensive ECG interpretation

A 46-year-old man presents to the ED with generalized weakness and body aches. He is noted to have normal vital signs. The following ECG is obtained:

Post-cardiac arrest ECGs: differential diagnoses to consider when dealing with non-conducted P waves

Differential Diagnoses: left axis deviation, fasicular block, and AV blocks

A 80-year-old woman presents to the ED for headache and hypertension. The following ECG is obtained:

Differential Diagnoses: fever and altered mental status

A 23-year-old woman presents to the ED with altered mental status and agitated delirium. She is noted to be tachycardic and febrile to 107F. The following ECG is obtained:

Differential Diagnoses: the most likely causes of a prolonged QT interval

A 70-year-old woman presents to the ED with upper abdominal pain and vague paresthesias. The following ECG is obtained:

Differential Diagnoses: QT interval considerations in patients with palpitations

A 46-year-old man with PMHx of HTN presents to the ED with chest pain after smoking crack cocaine. The following ECG is obtained:

Differential DIagnoses: right axis deviation, prolonged QT interval, and a wide QRS

A 46-year-old man with no known past medical history presents to the ED with recurrent witnessed seizures, actively seizing. The seizures are not responding to treatment with benzodiazepines. The following…

STAT ECG Diagnoses: differential for ST segment depression in the anteroseptal leads

A 36-year-old woman with a past medical history of rheumatoid arthritis presents to the ED with 3 days of waxing and waning chest tightness. The pain is pleuritic and 4/10…

Differential Diagnoses: QT interval considerations in patients with palpitations

A 54-year-old woman presents to the ED with lightheadedness, palpitations, muscle cramps, and upper extremity paresthesias. The following ECG is obtained: