232 results
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... by age 16 with secondary ... age 14 without secondary ... Etiology - High FSH ... Hyperprolactinemia • Hypothyroidism
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
• Low TSH, Low ... • Low TSH, normal ... • Low TSH, high ... T4 +/- T3 → Primary ... T3 → Central (secondary
Evaluation of Secondary Hypertension
 • Primary aldosteronism - PRA, PAC
 • Renal artery stenosis - Renal
Evaluation of Secondary ... Hypertension • Primary ... metanephrines • Hypothyroidism ... • Hyperthyroidism ... syndromes - PRA, PAC #Secondary
Primary Hyperthyroidism - Pathogenesis and Clinical Findings

Note: Although rare, gestational diseases can lead to thyrotoxicosis due
Primary Hyperthyroidism ... Secondary hyperthyroidism ... due to excess TSH ... Pretibial myxedema #Primary ... #Hyperthyroidism
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
Causes of Primary ... Diagnosis Algorithm Primary ... Etiology - High FSH ... Ovarian - High FSH ... Obstruction #Primary
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Causes == Primary ... failure/uremia TSH ... & T4: • Hypothyroidism ... • Hyperthyroidism ... #secondary #systemic
Primary and Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Primary (Essential) (95%) - Onset between age
Primary and Secondary ... Diagnosis Algorithm Primary ... No features of secondary ... aldosteronism) • Hyperthyroidism ... hypertension) • Hypothyroidism
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Algorithm • Secondary ... (↑↔TSH, ↑Total ... (↓TSH, ↔Total ... (↓TSH, ↑Total ... unlikely (↔TSH,
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Primary Amenorrhea ... Workup: • β-HCG, TSH ... Tanner Staging • FSH ... khudhur_moh #Primary
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
Hyperthyroidism ... • Insomnia Primary ... thyroiditis Secondary ... or Thyrotropin (TSH ... • Labs: - ↓ TSH