33 results
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Causes of Secondary ... - Differential Diagnosis ... Acromegaly #Secondary ... #Differential #Diagnosis ... #Workup #table
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
aldosterone - Low in cases ... Secondary Adrenal ... Evaluation #laboratory #diagnosis ... #testing #endocrinology ... #workup
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Graves disease – ... Check pregnancy test ... workup choices ... #Algorithm #Workup ... #Endocrinology
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Insufficiency Diagnosis ... unclear (often the case ... Standard Stim test ... #Stimulation #Test ... #Endocrinology
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
aldosterone Causes ... Serum DHEAS Diagnosis ... clue • Blood tests ... #endocrinology ... #diagnosis #signs
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... K), H. pylori test ... thyroid function test ... #Causes #Workup
Adrenal Insufficiency - Diagnosis and Management Summary
Primary Adrenal Insufficiency:
Most Common Cause in the US: Autoimmune Adrenalitis
Other
or metastatic disease ... Causes of Secondary ... A STIM test can ... ACTH STIM TEST: ... #Endocrinology
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Insufficiency Differential Diagnosis ... Weakness, fatigue, nausea ... ACTH) stimulation test ... baseline ACTH - Secondary ... #Algorithm #endocrinology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... confounding and inability ... who test positive ... but not on the causal ... #calculations #diagnosis
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... Onset ○ Meniere disease ... cause unknown) ... ○ HIV ○ Lyme disease ... #Differential #Diagnosis