306 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Evaluation of Hyperthyroidism ... Possibly Central Hypothyroidism ... normal T4 +/- T3 ... TSH, high T4 +/- T3 ... TSH, high T4 +/- T3
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
- Differential ... ↑↔TSH, ↑Total T3 ... (↓TSH, ↔Total T3 ... (↓TSH, ↑Total T3 ... #Differential #
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Thyroid Disease Hyperthyroidism ... iodine uptake Hypothyroidism ... positive • Ablative hypothyroidism ... • Infantile hypothyroidism ... #hyperthyroid #differential
Evaluation of Secondary Hypertension
 • Primary aldosteronism - PRA, PAC
 • Renal artery stenosis - Renal
metanephrines • Hypothyroidism ... - TSH, T3, fT4 ... • Hyperthyroidism
Algorithm for the diagnostic workup of hyperthyroidism. (T3 = triiodothyronine; T4 = thyroxine; TSH = thyroid-stimulating
diagnostic workup of hyperthyroidism ... (T3 = triiodothyronine ... #hyperthyroidism
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
thyrotoxicosis • T3 ... TSH • ↑ Total T3 ... ↑ FT4 and/or ↑ T3 ... : Reduce T4 -> T3 ... causes #diagnosis #differential
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Abnormal Serum TSH - Differential ... Increased TSH • Hypothyroidism ... • Sub-clinical Hypothyroidism ... Thyrotoxicosis • T3 ... Toxicosis #TSH #Differential
Causes of Orthopnea - Differential Diagnosis Framework

 • Fear and Anxiety
 • Pleural Effusion
 • Ascites
of Orthopnea - Differential ... Ascites • COPD • Hypothyroidism ... /Hyperthyroidism ... SIeep apnea • Hypothyroidism ... #Orthopnea #Differential
Pharmaceutical Management of Hyperthyroidism / Thyroid Storm
Beta-Blockers 
• Decreases sympathetic hyperactivity 
• Partially blocks peripheral conversion
Management of Hyperthyroidism ... conversion of T4 to T3 ... conversion of T4 to T3 ... conversion ofT4 to T3 ... accompany storm #Hyperthyroidism
Thyroid Disorders - Differential Diagnosis Algorithm
Hypothyroidism:
 • Hasimoto’s
 • Radioactive Iodine 
 • Hypopituitarism
 • Iodine
Thyroid Disorders - Differential ... Diagnosis Algorithm Hypothyroidism ... Subclinical Hyperthyroidism ... Thyroid #Disorders #Differential