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Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Table TSH, Free ... T4, Free T3 and ... #Hypothyroid #Function ... Comparison #Table #TSH #FreeT3 ... #FreeT4 #Labs #
Hyperthyroid States - Comparison Table - Laboratory Findings via RebelEM @srrezaie

#Diagnosis #Endocrinology #Hyperthyroid #States #Comparison #Table
Hyperthyroid States ... Endocrinology #Hyperthyroid ... Comparison #Table #TSH #FreeT3 ... #FreeT4 #Labs # ... Laboratory #Findings #Interpretation
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Thyroid Function ... Tests (TFTs) and Interpretation ... • TSH, Free ... T4, Free T3 • ... T3 Uptake • Free
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
disease - TSH low; free ... is elevated and free ... goiter - TSH low; free ... - TSH high; free ... - TSH high; free
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... normal T4 +/- T3 ... TSH, high T4 +/- T3 ... #algorithm #diagnosis ... endocrinology #TFTs #TSH #Interpretation
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Differential Diagnosis Algorithm ... Increased TSH • Hypothyroidism ... • Sub-clinical Hypothyroidism ... Thyrotoxicosis • T3 ... #Hypothyroid #Hyperthyroid
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Diagnosis and Workup Algorithm ... /Free T4) • Subclinical ... /Free T4) • Overt ... /Free T4) • ß-hCG-associated ... /Free T4) Radioactive
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism ... low TSH, High T4/T3 ... ) - Diagnostic Algorithm ... #Hyperthyroidism ... #Hyperthyroid #
Evaluation of Secondary Hypertension
 • Primary aldosteronism - PRA, PAC
 • Renal artery stenosis - Renal
metanephrines • Hypothyroidism ... - TSH, T3, fT4 ... • Hyperthyroidism ... cortisol. 24-h urine free
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
thyrotoxicosis • T3 ... TSH • ↑ Total T3 ... • ↑ Free T4 ... ↑ FT4 and/or ↑ T3 ... : Reduce T4 -> T3