CABT Study Guide 2026
Everything you need to pass the CABT 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.
📋 CABT Exam Format at a Glance
📚 CABT Topics to Study (70)
✍️ Sample CABT Questions & Answers
1. What is the anatomical term for the anterior surface of the hand?
The palmar surface refers to the front (anterior) surface of the hand, also called the palm.
2. A capacitor is connected in series with a resistor to an AC source. As frequency increases, what happens to the capacitive reactance (Xc)?
Capacitive reactance Xc = 1/(2πfC), so as frequency increases, Xc decreases.
3. What is the recommended action when an automated analyzer's QC result exceeds the 3-SD (3 standard deviation) Westgard rule?
A 3-SD violation (1₃s rule) indicates random error and requires run rejection, root cause investigation, and re-running QC before releasing patient results.
4. In a physiologic monitoring system, what is a 'zeroing' procedure used for?
Zeroing an invasive pressure transducer exposes it to atmospheric pressure and sets that as the zero reference point, ensuring all subsequent pressure measurements are accurate relative to atmosphere.
5. Which error in a clinical laboratory water purification system would most directly affect enzyme assays performed that day?
Elevated conductivity signals the presence of ionic contaminants that can inhibit enzyme activity and alter assay results significantly.
6. When calibrating a pressure transducer to atmospheric pressure, the biomedical technician should confirm the displayed pressure reads:
After zeroing to atmospheric pressure, the monitor should display 0 mmHg, as gauge pressure is measured relative to ambient atmospheric pressure.