23 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Erythrocytosis) - Differential ... RBC Mass / Decreased ... Idiopathic JAK-2 Positive ... Erythrocytosis #Differential
Kussmaul's Sign - Differential Diagnosis

Typically the JVP decreases with inspiration as the negative intrathoracic pressure "sucks
- Differential Diagnosis ... Typically the JVP decreases ... where we may see a positive ... #physicalexam # ... #causes
Romberg's Test for Proprioception
History: First described in the 19th century in patients with tabes dorsalis (later
syphilis) Meaning: Positive ... test (Romberg's sign ... Observe when patient closes ... Rombergs #Test #neurology ... proprioception #physicalexam
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
this specific case ... #Reflex #Positive ... #Abnormal #clinical ... #video #neurology ... #PhysicalExam
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Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
high; in some cases ... high; increased; decreased ... ; decreased radioactive ... antithyroglobulin antibody positive ... #hyperthyroid #differential
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
restrictive lung disease ... Occasional sighs ... Breathing In lung disease ... Abnormalities #Abnormal ... #Diagnosis #PhysicalExam
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
/L) • Mildly decreased ... Acute meningeal signs ... • Gram stain: Positive ... 90% • Culture: Positive ... #diagnosis #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
• Symptoms and signs ... Cauda equina- decreased ... Non-compressive Spinal Cord Causes ... Sarcoidosis, Behcet disease ... disorders #diagnosis #neurology
Anemia of Hospitalization - Pathophysiology

Why does the Hgb/Hct drop in the first two days during hospitalization?

Interestingly,
the recumbent position ... the horizontal position ... pseudoanemia is a normal ... Anemia of renal disease ... pathophysiology #differential
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Presentation: - Disease ... - Causes progressive ... - Fatigue and decreased ... conditions listed in differential ... Lateral #Sclerosis #neurology