153 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Evaluation of Hyperthyroidism ... normal T4 +/- T3 ... TSH, high T4 +/- T3 ... TSH, high T4 +/- T3 ... #algorithm #diagnosis
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Diagnosis and Workup Algorithm ... ↑↔TSH, ↑Total T3 ... (↓TSH, ↔Total T3 ... (↓TSH, ↑Total T3 ... Differential #Diagnosis #Algorithm
Algorithm for the diagnostic workup of hyperthyroidism. (T3 = triiodothyronine; T4 = thyroxine; TSH = thyroid-stimulating
Algorithm for the ... diagnostic workup of hyperthyroidism ... (T3 = triiodothyronine ... #hyperthyroidism ... #algorithm #diagnosis
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Thyroid Disease Hyperthyroidism ... high; in some cases ... iodine uptake Hypothyroidism ... positive • Ablative hypothyroidism ... • Infantile hypothyroidism
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Polyneuropathy, Acute ... stroke, Acute spinal ... Hypermagnesemia, Hypothyroidism ... Hypomagnesemia, Hyperthyroidism
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
thyrotoxicosis • T3 ... TSH • ↑ Total T3 ... ↑ FT4 and/or ↑ T3 ... : Reduce T4 -> T3 ... #causes #diagnosis
Abnormal Serum TSH - Differential Diagnosis Algorithm
Increased TSH
 • Hypothyroidism
 • Sub-clinical Hypothyroidism
 • Recovery from
Differential Diagnosis Algorithm ... Increased TSH • Hypothyroidism ... • Sub-clinical Hypothyroidism ... Thyrotoxicosis • T3 ... Differential #Diagnosis #Algorithm
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
Amenorrhea - Differential Diagnosis Algorithm
Elevated FSH
 • Premature Ovarian Failure
 • Menopa use
 • Spontaneous
Bleed With
Differential Diagnosis Algorithm ... Challenge • Hypothyroidism ... • Hyperthyroidism ... Hyperprolactinemia Organic Cause ... endocrinology #causes
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Differential Diagnosis Algorithm ... Systemic and Primary Causes ... TSH & T4: • Hypothyroidism ... • Hyperthyroidism ... #causes