10 results
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
; in some cases, ... iodine uptake; thyroid ... disease course #hypothyroid ... #hyperthyroid # ... differential #diagnosis
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
goiter • Toxic diffuse ... T3 • ↑ Free T4 ... Glucocorticoids: Reduce T4 ... hyperthyroidism #causes ... #diagnosis #differential
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Diagnosis Algorithm ... Diffuse Congenital ... sclerosis (white "ash ... Hypopigmentation #disorders ... #causes
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Diagnosis Algorithm ... Mellitus Liver Function ... failure/uremia TSH ... & T4: • Hypothyroidism ... #causes
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
Disorders of Pigmentations ... Hyperpigmentation - Differential ... Diagnosis Algorithm ... sclerosis (white "ash ... #causes
Amenorrhea - Differential Diagnosis Algorithm
Elevated FSH
 • Premature Ovarian Failure
 • Menopa use
 • Spontaneous
Bleed With
Amenorrhea - Differential ... Diagnosis Algorithm ... Elevated FSH ... Challenge • Functional ... Weight Loss, Eating Disorders
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
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 ... (e.g. eating disorder
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Traction alopecia Diffuse ... Tests: • TSH ... deficiency • Thyroid ... loss #alopecia #Differential
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Amenorrhea - Differential ... Diagnosis Algorithm ... Etiology - High FSH ... Hypothalamic: • Functional ... (e.g. eating disorder