12 results
Thyroid Function Test Interpretation Table

TSH, Free T4, Free T3 and Associated Condition
#Diagnosis #Endocrinology #Hyperthyroid #Hypothyroid #Function
Function Test Interpretation ... Table TSH, Free ... T4, Free T3 and ... #Hypothyroid #Function ... Comparison #Table #TSH
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Abnormal Serum TSH ... Differential Diagnosis Algorithm ... Thyrotoxicosis • T3 ... Differential #Diagnosis #Algorithm ... #Hypothyroid #Hyperthyroid
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
Differential Diagnosis Algorithm ... Diffuse Congenital ... sclerosis (white "ash ... Differential #Diagnosis #Algorithm ... #causes
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
high; in some cases ... , T3 is elevated ... low; free T4 and T3 ... disease course #hypothyroid ... #hyperthyroid #
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Differential Diagnosis Algorithm ... Diffuse Congenital ... • Piebaldism Diffuse ... sclerosis (white "ash ... #causes
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
T4 +/- T3 → Subclinical ... T4 +/- T3 → Primary ... , high T4 +/- T3 ... Hyperthyroidism #algorithm ... #Interpretation
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism (low TSH ... , High T4/T3) - ... Diagnostic Algorithm ... Hyperthyroidism #Hyperthyroid ... #Diagnosis #Algorithm
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
goiter • Toxic diffuse ... • ↑ Total T3 ... ↑ FT4 and/or ↑ T3 ... : Reduce T4 -> T3 ... hyperthyroidism #causes
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Differential Diagnosis Algorithm ... DIFFUSE Scarring ... contraceptives • Hyperthyroid ... Differential #Diagnosis #Algorithm ... #causes
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
Skin Hyperpigmentation ... Differential Diagnosis Algorithm ... Diffuse: • Tanning ... Differential #Diagnosis #Algorithm ... #causes