8 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... RA, Sjogren's, GPA ... Fecal occult blood test ... • Serology for ... Algorithm #Causes #dermatology
D-dimer
Plasma D-dimer is a product of clot breakdown, released upon degradation of polymerized, crosslinked fibrin. Elevated
false positive tests ... 88 = age adjusted ... Ddimer #dimer #pathophysiology ... #hematology #differential ... #adjusted
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 ... systemic complaints- anemia ... the “Chewing gum test
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
mucositis - Rash ... Takayasu: - Age ... and branches • GCA ... purpura: strong sign ... retinopathy Lab Tests
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Arboviruses: - West ... Maculopapular rash ... and meningismus are ... Acute meningeal signs ... • Uveitis • Rash
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... Elevated ESR and CRP GCA ... temporal artery • Age ... affects the skin, neurologic ... , mucositis • Rash
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... • Mutism Pathophysiology ... • Examine for signs ... Glasgow Coma Scale (GCS ... #PhysicalExam #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
peaks between the ages ... monophasic Pathophysiology ... • Bilateral signs ... negative, MOG-IgG test ... #differential