2874 results
Dyspnea - Differential Diagnosis Framework

Cardiovascular Causes of Dyspnea:
 • Myocardium:
	- Heart failure
	- CAD/ACS
	- Valvulopathy
 • Electrical:
	-
Cardiovascular Causes ... Tamponade Pulmonary Causes ... syndrome Other Causes ... - Acidosis - T4 ... differential #diagnosis #causes
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
Tumor Increased T4 ... Tumor Normal T4 ... Diagnosis #Algorithm #causes
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Systemic and Primary Causes ... /uremia TSH & T4 ... Diagnosis #Algorithm #causes
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
T3 • ↑ Free T4 ... Glucocorticoids: Reduce T4 ... hyperthyroidism #causes
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
/uremia TSH & T4 ... Diagnosis #Algorithm #causes
Subacute Thyroiditis

Also known as: de Quervain’s thyroiditis, granulomatous thyroiditis, or viral thyroiditis

What?
Postviral inflammatory process caused by
inflammatory process caused ... after onset Causes ... Thyrotoxic phase: ↑ T4 ... Hypothyroid phase: ↓ T4
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
TSH low; free T4 ... high; in some cases ... elevated and free T4 ... TSH low; free T4 ... TSH low; free T4
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
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
↑Total T3/Free T4 ... ↔Total T3/Free T4 ... ↑Total T3/Free T4 ... ↔Total T3/Free 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