6776 results
Differentiation of Causes of Hyperthyroidism According to Pattern of Radionucleotide Uptake
Reduced uptake:
 • Thyroiditis
 • Exogenous
Radionucleotide Uptake ... Reduced uptake ... Focal increased uptake ... #radionuclide #uptake ... #differential #diagnosis
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
- Differential Diagnosis ... • Increased Intake ... #Hyperkalemia #Nephrology ... #Differential #Diagnosis
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
- Differential Diagnosis ... Inadequate water intake ... Excessive salt intake ... #Differential #Diagnosis ... #Causes #nephrology
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
- Differential Diagnosis ... • High protein intake ... • High salt intake ... Nephrolithiasis #Nephrology ... #Differential #Diagnosis
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
radioactive iodine uptake ... by suppressed uptake ... focal increased uptake ... by suppressed uptake ... #differential #diagnosis
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... polydipsia, Low solute intake ... #hyponatremia #diagnosis ... algorithm #causes #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... Hypodipsia - Decreased intake ... • Inadequate intake ... Hypernatremia #Nephrology ... #Differential #Diagnosis
Graves Disease - Autoimmune Hyperthyroidism
Epidemiology: Most common cause of hyperthyroidism, Incidence peaks at 30-50
Diagnosis: 
1 )
peaks at 30-50 Diagnosis ... consider radioiodine uptake ... Methimazole/PTU (take ... Radioactive iodine (take ... Hyperthyroidism #diagnosis
Hyperthyroidism - Differential Diagnosis Algorithm
High/Normal Radioiodine Uptake
 - Autoimmune Thyroid Disease:
    • Grave's
- Differential Diagnosis ... Normal Radioiodine Uptake ... Low Radioiodine Uptake ... #Differential #Diagnosis
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
- Differential Diagnosis ... of bucket (low intake ... #Differential #Diagnosis ... Causes #workup #nephrology