161 results
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Thrombocytosis - Differential ... Reactive: • Anemia ... deficiency) • Infection ... Sepsis • Non-infectious ... rheumatologic, trauma
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
Index < 2: • Anemia ... (e.g. cancer, infection ... Acute blood loss: Trauma ... G6PD deficiency), Infections ... #differential #
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
Sporotrichiosis Infection ... sporotrichiosis minor trauma ... biopsy preferred Differential ... Sporotrichiosis #Infection ... #clinical #photo
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
• Mechanical Trauma ... Microangiopathic hemolytic anemia ... lactam antibiotics are ... spherocytosis) • Infections ... Extravascular #Causes #differential
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
each of the above photos ... Dacrocytes are found ... metaplasia, pernicious anemia ... some hemolytic anemias ... #Clinical #Path
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... hemolysis, deficiency anemia ... : Chronic infections ... , Severe trauma, ... Thrombocytosis #Platelets #Differential
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness - Differential ... feel weak": • Infectious ... ILD, OSA, pHTN, Anemia ... Rhabdomyolysis, Critical ... Generalized #Weakness #Differential
MOVE STUPID - Mnemonic for Altered Mental Status (Delirium)
 - Metabolic (hypercalcemia, hyponatremia)
 - Oxygen (hypoxia)
Seizures - Trauma ... - Uremia - ... Psychiatric - Infectious ... encephalopathy #differential
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Vascular Joint Pain - Differential ... • Sickle Cell Anemia ... Infective Endocarditis ... Disruption • Trauma ... (Hemophilia or Trauma
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... Myelofibrosis Infectious ... Post-op surgery • Trauma ... Iron deficiency anemia ... Thrombocytosis #Differential