13 results
Differentiation of Causes of Hyperthyroidism According to Pattern of Radionucleotide Uptake
Reduced uptake:
 • Thyroiditis
 • Exogenous
thyroxine • Iodine loading ... increased uptake: • Graves ... radionuclide #uptake #differential
Grades of Pitting Edema

 0+ No pitting edema 
 1+ Mild pitting edema. 2 mm depression
Grades of Pitting ... #Diagnosis #PhysicalExam ... Pitting #Edema #Grade ... #Grading #Severity
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
Shift - decreased unloading ... Shift - increased unloading ... #Right #Shift #Differential
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Water and solute loading ... #Polyuria #Differential
Non-cirrhotic Hyperammonemia - Differential Diagnosis Framework

Hematologic & Vascular:
 • Multiple myeloma & Acute leukemia (plasma cells
Hyperammonemia - Differential ... bleeding (↑ nitrogen loading ... Hyperammonemia #ammonia #Differential
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • Myasthenia Gravis ... • Myasthenia Gravis ... cannot depress when looking ... #DoubleVision #Differential
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... facilitates oxygen unloading ... Hypochloremia #Differential
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... Myasthenia gravis ... • Myasthenia gravis ... to the eyelid leading ... Ptosis #neurology #Differential
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... Oral sodium loading ... #Hypertension #Differential
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Peripheral Edema - Differential ... Bilateral • Protein-losing ... Peripheral #Edema #differential ... Lower #Extremity #PhysicalExam