Toxicologic Emergencies

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Must know ECGs you will see on board exams and have to recognize in real life

A 34-year-old man is brought to the emergency department with delirium and agitation. The following ECG is obtained:

STAT ECG Diagnoses: ECG findings that can help you clinch the diagnosis in patients with altered mental status

A 56-year-old woman is brought into the ED by EMS and is minimally responsive. History is limited. The following ECG is obtained:

Differential Diagnoses: important considerations in patients with new onset seizures or altered mental status, must know diagnoses in the emergency department

A 40-year-old man is brought into the ED after being found in the street and noted to have intermittent seizures. He is tachycardic, hypertensive, and febrile. The following ECG was…

STAT ECG Diagnoses: ECG findings of digoxin effect vs. digoxin toxicity

A 57-year-old male with PMHx of DM, heart failure (on digoxin) and leukemia presents with lightheadedness and near-syncope. The following ECG is obtained:

Rhythm Interpretation: is the PR interval constant, lengthening, or randomly changing?

 A 78-year-old woman presents to the emergency department after an episode of syncope. The following ECG is obtained:

STAT ECG Diagnoses: the ECG findings in sodium channel blocker toxicity

A father calls an ambulance for his 16-year-old daughter who is not feeling well. She has been listless and having palpitations. She is found to be tachycardic with a normal…

Palpitations: a cardiac cause with increased risk of arrhythmia and sudden cardiac death

A 50-year-old woman presents to the emergency department with palpitations. She has had signs and symptoms of an upper respiratory tract infection with low grade fevers. She is tachycardic but…

Wide Complex Tachycardias: regular wide complex tachycardia (RWCT) vs. regular REALLY wide complex tachycardia (RRWCT)

A 70-year-old male presents to the ED with generalized weakness and dizziness. He is suspected to be in atrial fibrillation with a heart rate of ~ 150 bpm. He is…

Differential Diagnoses: how to use ECG differentials to clinch the diagnosis in sick patients

HPI: 64-year-old male smoker with a Hx of HTN, DM, COPD presents with lightheadedness and chest tightness. He has had flu like symptoms for the past week, that have been…

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