Hypokalemia
Results:
Recent UMMC Cases (Part III)
A 67-year-old man arrives at the emergency department with palpitations. He is noted to be tachycardic at triage and the following ECG is obtained and interpreted as “sinus tachycardia”:
Hypokalemia
Key Points Hypokalemia primarily affects ventricular repolarization, producing characteristic changes on the ECG. Progressive ECG changes include T-wave flattening, prominent U-waves, and a prolonged QT interval due to T-U fusion….
What’s Behind These Strange T Waves?
A 52-year-old woman presents to the emergency department with severe malaise and the following ECG is obtained:
Himalayan T Waves
Key Points Himalayan T waves are a peculiar T wave abnormality characterized by T wave/U wave fusion, resulting in a mountain peak-like appearance on the ECG. This pattern is strongly…
Interesting Cases from UMMC, Part II
A 58-year-old man presents to the emergency department with acute chest pain and shortness of breath. The following ECG is obtained:
2024 EM Boards ECG Review (Part II/II)
A 55-year-old man with a known left bundle branch block presents to ABEM general hospital with acute chest pain. Vital signs are normal and his pain is slightly improved with…
Paralysis Unmasked: Impressive ECGs That Saved the Day
A 45-year-old woman with PMHx of HTN, DM, ESRD (MWF hemodialysis) presents with complete paralysis below the neck. She reports being normal and fully functional before going to bed the…
Differential Diagnoses: poor R wave progression, prolonged QT intervals, and much more
A 53-year-old woman presents to the emergency department with shortness of breath. The following ECG is obtained:
Differential Diagnoses: narrow complex irregular tachycardia, short QTc intervals, ST segment elevation in aVR, and so much more!
An 89-year-old woman is brought into the emergency department with generalized weakness and dizziness. She is noted to be bradycardic at triage. The following ECG is obtained with no prior…
STAT ECG Diagnoses: considerations in patients with altered mental status and seizures
A 39-year-old male with no significant PMHx presents to the ED after a seizure. He is post-ictal on arrival. Vital signs are normal, and the following ECG is obtained:
Potpourri of cases: critical electrolyte abnormalities, clumped or grouped beats, and so much more!
A 73-year-old man presented to the ED with chest pain and is noted to be hypotensive (95/45). The following ECG was obtained:
STAT ECG Diagnoses: the value of ECGs in acute neurological emergencies
A 54-year-old male presented to the emergency department with inability to walk for 3 days s/p appendectomy. He reports feeling ill and generally weak. He denies abdominal pain, fever, nausea,…
2019 ECG Competition Answers (Part 1/3)
This week we review the answers to the first 6 questions from the 7th annual UMEM Residency ECG Competition. Make sure to attempt to answer the questions before clicking the red…
The many causes of ST segment elevation in aVR and a discussion on the ECG findings in severe hypokalemia
A known local alcoholic presents to the emergency department with weakness. The patient has been laying on a mattress in a field for most of the past week. He says…
Reverse Wellens Waves: not all biphasic T waves are indicative of ACS!
A 25-year-old woman presents to the emergency department with lightheadedness and palpitations for 1 week. Her symptoms worsened today with a near-syncopal episode. She is thin/frail and dehydrated in appearance….
Differential Diagnoses: a triad of long QT interval, PVCs, & ST segment depression
A 56-year-old woman presents to a busy ED dehydrated with acute gastroenteritis. She is placed in a hallway bed and treated with IV fluids and ondansetron. On reassessment the patient…
ECG findings in severe hypokalemia that may mimic ACS
An 85-year-old woman with PMHx of atrial fibrillation is referred to the ED by her primary care physician who is concerned for cardiac ischemia. The patient has been having epigastric…
Literature Review: aVR – The forgotten 12th lead
A 55-year-old man with PMHx of end stage renal disease on dialysis presents to the ED for fatigue and pain all over. He denies ischemic chest pain. The following ECG…
ECG Tags
- & Myocardial Ischemia
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- Left Ventricular Hypertrophy (LVH)
- Left ventricular hypertrophy vs. STEMI
- Lewis lead
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- Literature review
- Long QT
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- LPFB
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- narrow complex regular tachycardia differential
- Narrow Complex Tachycardia
- narrow qrs bradycardia
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- New RBBB and LAFB
- Nielsen
- Nikelekam T-waves
- No clear P waves DDx
- Non-conducted P wave (P:QRS>1) DDx
- non-conducted PACs
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- normal
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- NSVT
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- OMI
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- OMI Pattern: ST Depression V1-V4
- OMI Patterns in Left Bundle Branch Block
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- pericarditis vs acs
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- Respiratory variation
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- right atrial enlargement
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- sick sinus syndrome
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- Sinus arrest
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- ST
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- T wave inversions in V1-V3
- T wave morphology
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- T-wave inversion
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- the basics
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- V1
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- wide vs. narrow QRS
- Wolff Parkinson White
- Wolff-Parkinson White (WPW) Syndrome
- WPW
- wpw syndrome
- WPW syndrome and Pseudo-MI patterns
- WPW vs STEMI
- WPW with Antidromic SVT
- WPW with atrial fibrillation
- WPW with Orthodromic SVT
- WPW with SVT
- Young patients
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