52 results
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Toxic multinodular goiter ... iodine uptake; thyroid ... procedure that ablates thyroid ... disease course #hypothyroid ... #hyperthyroid #
Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Thyroid Function ... Free T4, Free T3 ... Endocrinology #Hyperthyroid ... #Hypothyroid #Function
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Recovery from Non-Thyroid ... Thyrotoxicosis • Non-Thyroid ... Thyrotoxicosis • T3 ... Diagnosis #Algorithm #Hypothyroid ... #Hyperthyroid #
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
Toxic diffuse goiter ... thyrotoxicosis • T3 ... TSH • ↑ Total T3 ... ↑ FT4 and/or ↑ T3 ... : Reduce T4 -> T3
Thyroid Disorders - Differential Diagnosis Algorithm
Hypothyroidism:
 • Hasimoto’s
 • Radioactive Iodine 
 • Hypopituitarism
 • Iodine
Thyroid Disorders ... @AmyChung #Thyroid ... Diagnosis #Algorithm #Hypothyroid ... #Hyperthyroid
Thyroid Goiter on Physical Exam

Mother and daughter both presenting with thyroid goiters caused by iodine deficiency.
Thyroid Goiter on ... presenting with thyroid ... goiters caused ... Note that the goiter ... bruno.farnetano #Thyroid
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Thyroid Function ... Free T4, Free T3 ... • T3 Uptake ... FTI) • Reverse T3 ... @DharSaty #Thyroid
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
↑↔TSH, ↑Total T3 ... (↓TSH, ↔Total T3 ... (↓TSH, ↑Total T3 ... , Multinodular goiter ... • Exogenous thyroid
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
low TSH, High T4/T3 ... concern for nodular thyroid ... Hyperthyroidism #Hyperthyroid
Pharmaceutical Management of Hyperthyroidism / Thyroid Storm
Beta-Blockers 
• Decreases sympathetic hyperactivity 
• Partially blocks peripheral conversion
Hyperthyroidism / Thyroid ... conversion of T4 to T3 ... Blocks synthesis of thyroid ... conversion of T4 to T3 ... conversion ofT4 to T3