2240 results
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Hyperthyroidism - Differential ... ↑Total T3/Free T4 ... ↔Total T3/Free T4 ... ↑Total T3/Free T4 ... Hyperthyroidism #Differential
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
TSH low; free T4 ... elevated and free T4 ... TSH low; free T4 ... TSH low; free T4 ... #hyperthyroid #differential
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
• TSH, Free T4 ... laboratory #patterns #differential
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
Gynecomastia - Differential ... Tumor Increased T4 ... Tumor Normal T4 ... #Gynecomastia #Differential
Dyspnea - Differential Diagnosis Framework

Cardiovascular Causes of Dyspnea:
 • Myocardium:
	- Heart failure
	- CAD/ACS
	- Valvulopathy
 • Electrical:
	-
Dyspnea - Differential ... - Acidosis - T4 ... #dyspnea #sob #differential
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
- Generalized Differential ... /uremia TSH & T4 ... Hyperthyroidism CBC & Differential ... #dermatology #Differential
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Skin Lesion - Differential ... /uremia TSH & T4 ... Hyperthyroidism CBC & Differential ... #dermatology #Differential
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
T3 • ↑ Free T4 ... Glucocorticoids: Reduce T4 ... causes #diagnosis #differential
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
TSH, Low normal T4 ... Low TSH, normal T4 ... Low TSH, high T4 ... normal TSH, high T4
Thyroid Function Pathway 

Hypothyroidism is a very common condition! Here's a repost of the pathway that
TSH and a low T4 ... is because if T4 ... stimulate more T4 ... levothyroxine (T4