10 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... ventricles contract nearly ... EKG of the same ... excludes other differentials ... ’s called Frog sign
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... ) • Systemic symptoms ... and signs (e.g. ... #Differential # ... Diagnosis #Algorithm #neurology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... J point • De Winter ... V2 • Wellens sign ... B - Deeply inverted ... #differential #
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Approach to ECGs ... Equivalents / Don't Miss Signs ... bigger than QRS - deWinter ... inversion in avL - early ... Interpretation #differential
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
papilledema - carbon ... thrombophilia, neurologic ... signs/symptoms ... Fatal #Dangerous #Deadly ... #Differential
Clinical Features of Carbon Monoxide Toxicity
CNS - Headache, Visual disturbances, Confusion, Ataxia, Seizure, Syncope, Retinal hemorrhage,
Toxicity CNS - Headache ... hemorrhage, Focal neurologic ... - Chest pain, ECG ... Toxicity #Toxicology #Signs ... #Symptoms #Diagnosis
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
Risk Factors Carbon ... with the same symptoms ... equipment producing carbon ... #redflags #signs ... #symptoms #differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Enteroviruses (e.g ... - Jamestown Canyon ... Coltivirus Symptoms ... influenzae Symptoms ... Acute meningeal signs
Manifestations of Anaphylaxis by Body System

Dermatologic/mucosal

 - Eyes: periorbital swelling/erythema, injected conjunctiva, tears

 - Oral mucosa:
Cardiovascular - Early ... abdominal cramps Neurologic ... - Throbbing headache ... Diagnosis #Allergy #Signs ... #Symptoms #Anaphylaxis
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
with systemic, neurologic ... systemic sx + signs ... very remarkable w/differential ... claudication, headaches ... GCA #Temporal #Signs