MedBrain · AI study tutor

Ask the chapter you're reading anything.

MedBrain is the AI tutor inside Board Pearls. It reads the chapter, the question, and the highlight you're looking at, and answers in attending-level prose with the same evidence base the chapter is built on. No chat-with-the-internet hallucinations. No retyping context every turn.

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What it looks like

Three ways physicians use it.

Reading: Ch 25 · Portal Hypertension · §6 SBP

What dose of albumin reduces HRS in SBP and what trial backs it?

Sort dosing: 1.5 g/kg on day 1 plus 1 g/kg on day 3, intravenous 25%. The trial is Sort, NEJM 1999. It cut HRS-AKI from about 33% to about 10% and improved short-term mortality. The benefit is largest when baseline creatinine is over 1 mg/dL or bilirubin over 4 mg/dL.

Practicing: Vignette qb-s4q1 · Forrest IIa ulcer

Walk me through choice C. Why is it wrong?

Choice C is repeat endoscopy at 24 hours. Forrest IIa is a non-bleeding visible vessel. After successful endoscopic dual therapy plus 72 hours of high-dose IV PPI, routine second-look endoscopy doesn't improve outcomes. ACG 2021 reserves repeat scope for clinical rebleeding or initial hemostasis failure, not as scheduled care.

Cross-chapter: GERD vs eosinophilic esophagitis

When does PPI-responsive eosinophilia become EoE versus stay GERD?

Eight weeks of high-dose PPI with persistent eosinophilia ≥15/HPF on repeat biopsy supports EoE per AGREE Conference 2018. PPI responders with normalization on biopsy now sit inside the EoE umbrella as PPI-responsive EoE. The clinical features that push toward EoE: dysphagia, food impaction, atopic comorbidity, EREFS findings.

Highlighted from Ch 17 · Liver Tests

"R value over 5", what does that mean here, plain language?

R value separates a hepatocellular pattern from a cholestatic one. R = (ALT/upper limit) ÷ (alkaline phosphatase/upper limit). Over 5 means the injury is hepatocellular (think viral, drug, AIH, ischemia). Under 2 is cholestatic (think PBC, PSC, obstruction, drug-induced cholestasis). 2 to 5 is mixed.

How it works

Built into your study, not bolted on.

Reads what's on screen, pulls from the rest

Open MedBrain from inside any chapter or MCQ and it knows what you're looking at. Highlight a passage and the answer grounds to those lines. Ask something the chapter doesn't cover and it searches the full curated medical library across every specialty you own. No retyping context every turn.

Cites the same evidence base

Whether the answer comes from the chapter on screen or somewhere else in the library, it's built from the same primary sources the curriculum is: society guidelines (ACG, AGA, AASLD, ASGE), pivotal trials, and the attending-narrated chapter explanations. If the answer isn't in the corpus, MedBrain says so instead of making something up.

Pay-as-you-go, on top of any plan

Add MedBrain to a Monthly or Annual subscription anytime. From $10. Top up when you run low; toggle off whenever. Your chapter access stays unchanged either way.

What it isn't.

·Not a chat-with-the-internet bot. Answers come from the curriculum, not from random search results.
·Not a clinical decision tool. MedBrain is for board-style reasoning, not for treating real patients.
·Not a replacement for the chapters. It's a tutor that sits next to them.

Ready when you are.

MedBrain is an add-on to any GI subscription. Pick a plan first, then turn MedBrain on from your account.

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