11 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... normal T4 → Possibly ... , high T4 +/- T3 ... #algorithm #diagnosis ... #Interpretation
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Thyroid Disease Hyperthyroidism ... ; in some cases, ... disease course #hypothyroid ... #hyperthyroid # ... differential #diagnosis
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Diagnosis Algorithm ... Mellitus Liver Function ... failure/uremia TSH ... & T4: • Hypothyroidism ... #causes
Hyperthyroidism Overview

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

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Diagnosis Algorithm ... Mellitus Liver Function ... failure/uremia TSH ... & T4: • Hypothyroidism ... #causes
Amenorrhea - Differential Diagnosis Algorithm
Elevated FSH
 • Premature Ovarian Failure
 • Menopa use
 • Spontaneous
Bleed With
Amenorrhea - Differential ... Diagnosis Algorithm ... Elevated FSH ... • Hyperthyroidism ... Challenge • Functional
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
Gynecomastia - Differential ... Diagnosis Algorithm ... , Decreased TSH ... • Hyperthyroidism ... #causes #endocrinology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
and Focal) Differential ... Diagnosis Algorithm ... • Hyperthyroidism ... contraceptives • Hyperthyroid ... #causes
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Diffuse Hair Loss ... (Alopecia) - Differential ... Diagnosis Algorithm ... contraceptives • Hyperthyroid ... #causes
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Amenorrhea - Differential ... Diagnosis Algorithm ... estrogen: • Functional ... compression) • Hypothyroidism