55 results
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
increased radioactive iodine ... increased radioactive iodine ... decreased radioactive iodine ... decreased radioactive iodine ... procedure that ablates thyroid
Thyroid Disorders - Differential Diagnosis Algorithm
Hypothyroidism:
 • Hasimoto’s
 • Radioactive Iodine 
 • Hypopituitarism
 • Iodine
Thyroid Disorders ... Differential Diagnosis Algorithm ... • Radioactive Iodine ... Hypopituitarism • Iodine ... @AmyChung #Thyroid
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Diagnosis and Workup Algorithm ... Graves disease • Low ... Scan - Low Uptake ... • Exogenous thyroid ... Differential #Diagnosis #Algorithm
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid ... TSH, Low normal ... symmetrically enlarged thyroid ... → Radioactive Iodine ... Hyperthyroidism #algorithm
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism (low ... ) - Diagnostic Algorithm ... Radioactive iodine ... concern for nodular thyroid ... Hyperthyroid #Diagnosis #Algorithm
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
Toxicosis • Iodine ... Diagnosis: • ↓ Low ... with radioactive iodine ... Thionamide - Iodine ... • Radioactive iodine
Graves' Disease Treatment
Thionamides (mainly methimazole)
 • Chance of remission in up to 2 years
 • No
2 years • No thyroid ... remission (~40%) • Low ... cost Radioactive Iodine
Low Anion Gap - Various causes and mechanisms of a Low Anion Gap
 • Hypoalbuminemia (1gm
Low Anion Gap - ... mechanisms of a Low ... C • Bromide, Iodide ... paraprotein #Low ... differential #diagnosis #nephrology
Hyperthyroidism - Differential Diagnosis Algorithm
High/Normal Radioiodine Uptake
 - Autoimmune Thyroid Disease:
    • Grave's
Differential Diagnosis Algorithm ... - Autoimmune Thyroid ... - Autonomous Thyroid ... Trophoblastic Neoplasm Low ... Differential #Diagnosis #Algorithm
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Differential Diagnosis Algorithm ... • Low Serum Mg ... parathyroid glands (i.e. thyroid ... (very rare) • Low ... Differential #Diagnosis #Algorithm