8 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... EKG of the same ... to diagnose the ... case as Typical ... excludes other differentials
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
13 Dangerous Causes ... hypertension - CNS ... thrombophilia, neurologic signs ... postpartum #Diagnosis ... Dangerous #Deadly #Differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Enteroviruses (e.g ... - Jamestown Canyon ... Coltivirus Symptoms ... Acute meningeal signs
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
those coming off aorta ... systemic sx + signs ... very remarkable w/differential ... GCA #Temporal #Signs ... #Symptoms #Diagnosis
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
Emergent Causes ... with the same symptoms ... headache #redflags #signs ... #symptoms #differential ... #emergency #diagnosis
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... #headache #signs ... #symptoms #clues ... #differential # ... diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... < 30 years • Aorta ... Arteritis): • Aorta ... tract, and often causes ... chorioretinitis, CNS
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Aldolase levels • EMG ... papules and Gottron sign ... ) • Shawl sign ... statins - probably caused