Source / episode info

• **Episode:**563
• **Title:**DIP Ep 563: 2024 USMLE Step 3 Free 137 Discussion Part 10 (Q92-100, super helpful for Step 2!)
• **Published:**2025-01-21
• Source:Episode page

One-liner

This episode covers critical board topics including managing impending pathological fractures, contraindications for cardiac medications during acute heart failure exacerbation, surveillance of localized malignancies, diagnosis and treatment of MALT lymphoma, immediate management protocols for ACS, and common pitfalls in reproductive endocrinology (PCOS) and infectious disease.

High-yield summary

• Pathological Fracture Management: When a bone is unstable or shows signs of impending fracture (e.g., cortical discontinuity, severe edema), the priority is stabilization via surgical fixation, not just long-term bisphosphonate therapy.
• Acute Coronary Syndrome (ACS): The immediate first step in suspected ACS is always high-dose oral Aspirin (3124 mg) regardless of other findings or medications given.
• CHF Exacerbation: In acute decompensated heart failure, agents that depress cardiac function, such as Beta-blockers (e.g., Metoprolol) and non-dihydropyridine Calcium Channel Blockers (Verapamil/Diltiazem), are generally contraindicated due to negative inotropic effects.
• PCOS Risk: The most significant metabolic risk associated with PCOS is Insulin Resistance leading to Type 2 Diabetes Mellitus, followed by endometrial cancer risk from chronic unopposed estrogen exposure.
• MALT Lymphoma: Gastric ulcers showing a polymorphic infiltrate of small cells positive for CD19/CD20 are highly suggestive of MALT lymphoma and require initial triple therapy (PPI + Clarithromycin + Amoxicillin).

Learning objectives

• Differentiate between the appropriate immediate management of an unstable pathological fracture versus chronic bone disease.
• Identify medications contraindicated during acute decompensation of heart failure (CHF).
• Apply oncologic principles to determine the best treatment modality for a localized, non-metastatic malignancy.
• Recognize the classic presentation and initial therapy for MALT lymphoma in the GI tract.
• Master the immediate pharmacological steps required upon suspicion of Acute Coronary Syndrome (ACS).

Board exam buzzwords