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Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Thyroid Function ... Interpretation Table TSH ... , Free T4, Free ... #Hypothyroid #Function ... #Tests #TFTs #Comparison
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid ... Function Tests ... T4 +/- T3 → Primary ... symmetrically enlarged thyroid ... Hyperthyroidism #algorithm
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
• Insomnia Primary ... goiter • Toxic diffuse ... T3 • ↑ Free T4 ... Glucocorticoids: Reduce T4 ... causes #diagnosis #differential
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Diagnosis Algorithm ... Mellitus Liver Function ... failure/uremia TSH ... & T4: • Hypothyroidism ... #Diagnosis #Algorithm
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Pruritus - No Primary ... Diagnosis Algorithm ... Mellitus Liver Function ... failure/uremia TSH ... & T4: • Hypothyroidism