2392 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 #
Hyperthyroidism - Differential Diagnosis Algorithm
High/Normal Radioiodine Uptake
 - Autoimmune Thyroid Disease:
    • Grave's
Hyperthyroidism - Differential ... Normal Radioiodine Uptake ... Low Radioiodine Uptake ... #HighThyroid #Differential
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 ... #hyperthyroid #differential
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Free T3 • T3 Uptake ... laboratory #patterns #differential
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Hyperthyroidism - Differential ... Iodine Scan - High Uptake ... Iodine Scan - Low Uptake ... Hyperthyroidism #Differential
Jaundice - Differential Diagnosis Algorithm
Pre-Hepatic - Unconjugated Hyperbilirubinemia
Increased Production
 • Hemolysis
 • Ineffective Erythropoiesis
 • Hematoma
Decreased
Jaundice - Differential ... Decreased Hepatic Uptake ... #Jaundice #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Decreased GI Uptake ... - Poor dietary intake ... Hypomagnesemia #Differential
Copper Deficiency - Mechanisms
There are 2 main mechanisms of copper deficiency
Decreased intake from:
 - Gastric bypass,
deficiency Decreased intake ... absorption - Reduced intake ... TPN Decreased uptake ... Deficiency #Causes #differential
Classification of Jaundice
Unconjugated hyperbilirubinemia (predominantly indirect bilirubin)
 • Increased bilirubin production (eg, hemolytic anemias, hemolytic reactions,
Impaired bilirubin uptake ... #unconjugated #differential
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
radioactive iodine uptake ... causes #diagnosis #differential