Source / episode info
- **Episode:**285
- **Title:**Divine Intervention Episode 285 – USMLE Step 2CK Rapid Review Series 49.
- **Published:**2021-01-26
- Source:Episode page
One-liner
This episode provides a rapid review of high-yield topics covering the management of malignancy complications (hypercalcemia, spinal cord compression), common GI pathologies (Crohn's, Meckel's, diverticulitis), endocrine syndromes (carcinoid syndrome), and key physiological concepts in renal and pulmonary medicine.
High-yield summary
- Hypercalcemia of Malignancy: Always treat with Normal Saline fluids first; mechanisms include PTHrP (Squamous cell lung) or IL-1 (Multiple myeloma).
- Spinal Cord Compression: The initial management is always Steroids to reduce edema, followed by Radiation therapy.
- Crohn's Disease: High risk for complications at the terminal ileum, including B12 deficiency and increased reabsorption of oxalate leading to nephrolithiasis.
- Meckel's Diverticulum: The classic presentation is painless, bloody diarrhea in childhood; diagnosis requires a Technetium-99m scan. Bleeding source is often ectopic gastric mucosa (parietal cells).
- Carcinoid Syndrome: Typically involves the right side of the heart due to hepatic metabolism and lack of pulmonary clearance mechanisms. The classic triad is flushing, diarrhea, and cardiac disease.
- Inflammatory Bowel Disease Progression: Among UC and Crohn's, Ulcerative Colitis carries a significantly higher risk of progressing to colonic malignancy.
Learning objectives
- Identify the initial management steps for hypercalcemia secondary to malignancy (Fluids, Bisphosphonates).
- Differentiate between the common sources and presentations of GI bleeding from Meckel's diverticulum versus colonic diverticulitis.
- Recognize the classic clinical triad and underlying pathophysiology of carcinoid syndrome, emphasizing right heart involvement.
- Correlate specific gastrointestinal findings (e.g., skip lesions, terminal ileum involvement) with Crohn's disease complications (B12 deficiency, oxalate stones).
- Understand that acute spinal cord compression requires immediate steroid administration followed by radiation therapy.