Source / episode info

• **Episode:**31
• **Title:**Divine Intervention Episode 31 – Comprehensive Medicine Shelf Review. Session 3.
• **Published:**2018-05-20
• Source:Episode page

One-liner

This session covers a vast array of high-yield topics including G6PD deficiency management, differentiating nephrotic syndromes, recognizing classic cardiac murmurs (Aortic Stenosis), managing Cushing's syndrome and adrenal insufficiency, diagnosing vasculitides like GPA, understanding the pathophysiology of various diarrheas, and reviewing complex pharmacology principles.

High-yield summary

• G6PD Deficiency: Acute hemolysis is triggered by oxidative stress, especially fava beans or certain drugs (e.g., sulfa antibiotics). The diagnosis requires quantitative enzyme assay confirmation after a positive smear finding.
• Aortic Stenosis (AS): Classic murmur is a systolic crescendo-decrescendo heard best at the right upper sternal border radiating to the carotids; associated with Pulsus Parvus et Tardus and potential for syncope/pre-syncope due to fixed outflow obstruction.
• Cushing's Syndrome Workup: The key is determining if ACTH excess (pituitary or ectopic) or cortisol excess is present. High dose dexamethasone suppression test failure suggests ACTH-dependent Cushing's (e.g., pituitary adenoma).
• Vasculitis (GPA): Granulomatosis with polyangiitis classically involves the upper respiratory tract, lungs, and kidneys; associated with ANCA (c-ANCA) and requires aggressive immunosuppression.
• GI Bleeding: The "Beads on a string" appearance in ERCP suggests Crohn's disease due to skip lesions/inflammation of the terminal ileum.
• Electrolyte Imbalances: In hyponatremia, rapid correction (over 24 hours) risks Osmotic Demyelination Syndrome (ODS).

Learning objectives

• Differentiate between various types of nephrotic syndrome and their associated primary pathologies.
• Master the clinical presentation, diagnosis, and management strategies for common valvular heart diseases.
• Apply knowledge of endocrine axis testing (ACTH/Cortisol) to distinguish causes of hypercortisolism.
• Recognize the classic signs and symptoms of systemic vasculitides (e.g., GPA).
• Understand the pathophysiology and differential diagnosis of various types of diarrhea (secretory vs osmotic).