17 results
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Abnormal Serum TSH ... Increased TSH ... Illness Decreased TSH ... Toxicosis #TSH ... #Hypothyroid #Hyperthyroid
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Graves disease - TSH ... high; in some cases ... - TSH high; free ... disease course #hypothyroid ... #hyperthyroid #
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
• Low TSH, Low ... • Low TSH, normal ... T4 +/- T3 → Primary ... TSH, high T4 +/ ... #algorithm #diagnosis
Hyperthyroidism - Differential Diagnosis Algorithm
High/Normal Radioiodine Uptake
 - Autoimmune Thyroid Disease:
    • Grave's
Hyperthyroidism ... Positive anti-TSH ... Multinodular Goiter - TSH ... Excess: • TSH-Secreting ... endocrinology #causes
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
• Insomnia Primary ... stimulators • TSH-producing ... Diagnosis: • ↓ Low TSH ... or Thyrotropin (TSH ... • Labs: - ↓ TSH
Algorithmic Approach to Hypothyroidism - Differential Diagnosis and Management Framework

Central Hypothyroidism (Secondary or tertiary) ↓TSH, ↓FT4
Algorithmic Approach ... or tertiary) ↓TSH ... ↑TSH, ↓FT4 • ... obtain TPOAb Euthyroid ... endocrinology #hypothyroid
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
TSH • Microprolactinoma ... / Low TSH • Pituitary ... Prolactin + High TSH ... • Primary Hypothyroidism ... Endocrinology #Causes
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism ... (low TSH, High T4 ... ) - Diagnostic Algorithm ... concern for nodular thyroid ... #Hyperthyroid #
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Differential Diagnosis Algorithm ... Causes == Primary ... failure/uremia TSH ... • Hyperthyroidism ... #causes
Sellar / Pituitary Mass - Differential Diagnosis Algorithm
Adenoma - Primary Anterior Pituitary
 - Secreting
Differential Diagnosis Algorithm ... Adenoma - Primary ... • ACTH • TSH ... Hypothyroidism) ... endocrinology #causes