ABPATH Study Guide 2026
Everything you need to pass the ABPATH exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 ABPATH Exam Format at a Glance
📚 ABPATH Topics to Study (69)
✍️ Sample ABPATH Questions & Answers
1. Barrett esophagus is defined histologically by the presence of which type of metaplasia?
Barrett esophagus requires intestinal metaplasia with goblet cells in the distal esophagus, confirmed by Alcian blue stain at pH 2.5.
2. The reversible cellular change of hydropic swelling results primarily from:
Cellular swelling occurs when the Na+/K+ ATPase fails, causing sodium and water influx into the cell.
3. Apoptosis differs from necrosis primarily in that apoptosis:
Apoptosis is an ATP-dependent, programmed cell death that leaves the membrane intact and does not provoke inflammation.
4. What is the key difference between malignant and benign tumors?
The fundamental difference between benign and malignant tumors lies in their biological behavior and potential for harm. Malignant tumors (cancers) exhibit uncontrolled, rapid growth, invade surrounding tissues, and have the capacity to metastasize to distant sites. Benign tumors, in contrast, typically grow slowly, remain localized, and do not invade or metastasize.
5. A biopsy showing non-caseating granulomas in the lung and hilar lymph nodes without organisms most suggests?
Sarcoidosis classically produces non-caseating granulomas with negative stains for organisms.
6. Lean methodology in the laboratory primarily aims to:
Lean focuses on removing non-value-added steps (waste) to streamline laboratory processes.