CABT Cheat Sheet 2026

The 30 highest-yield CABT facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. The primary function of electrical isolation in patient monitoring equipment is to: → Prevent dangerous current from flowing through the patient to ground
2. A ventilator's flow sensor reads consistently 15% higher than the reference standard during calibration. This is an example of: → Systematic bias (offset error)
3. The term 'slew rate' in an operational amplifier refers to: → Maximum rate of change of output voltage
4. Which risk management standard is specifically applicable to the design and manufacture of medical devices? → ISO 14971
5. In the structural hierarchy of the human body, which level of organization is considered more complex than tissues? → Organs
6. What is the term for the connective tissue that attaches muscle to bone? → Tendon
7. Which layer of the heart wall is responsible for the contractile function of the heart? → Myocardium
8. In Certified Associate in Biomedical Technology practice, what is the CORRECT sequence when performing a technical procedure? → Plan, prepare, execute, verify, and document
9. During a nuclear medicine gamma camera quality control test, a 'uniformity flood' is performed to check: → Homogeneous sensitivity response across the detector face
10. What is the primary function of a laminar flow hood in a clinical laboratory? → To provide a sterile work environment by directing HEPA-filtered air over the work surface
11. When calibrating an invasive blood pressure transducer, zeroing the transducer at the level of the phlebostatic axis compensates for: → Hydrostatic pressure error due to fluid column height
12. According to the Spaulding Classification System, surgical instruments that enter sterile tissue or the vascular system are classified as: → Critical items
13. Which of the following best describes 'risk priority number' (RPN) used in Failure Mode and Effects Analysis (FMEA)? → The product of severity, occurrence, and detectability ratings for a failure mode
14. Which biological indicator organism is the standard for testing the efficacy of steam sterilization? → Geobacillus stearothermophilus spores
15. What is the role of the sinoatrial (SA) node in cardiac physiology? → It initiates the electrical impulse that sets the heart rate
16. ISO 13485 is a quality management standard specifically designed for: → Organizations in the medical device supply chain
17. During a 12-lead ECG procedure, which electrode placement is considered the reference point (Wilson's central terminal) for augmented unipolar limb leads? → Average of right arm, left arm, and left leg electrodes
18. In Certified Associate in Biomedical Technology, what is the PRIMARY purpose of conducting an initial assessment? → To establish a baseline and identify needs for appropriate action
19. What is the primary purpose of the 'alarm limit' feature on patient monitors? → To alert clinicians when a parameter exceeds safe boundaries
20. In a biomedical pressure transducer using a strain gauge, what electrical parameter changes in response to physical deformation? → Resistance
21. A Class I recall is initiated when a device has a reasonable probability of causing: → Serious adverse health consequences or death
22. Which type of epithelium lines the urinary bladder and is capable of stretching? → Transitional epithelium (urothelium)
23. Which of the following is the correct action when a medical device is found with a frayed power cord during a PM inspection? → Remove the device from service and replace the cord before returning it
24. Which test instrument is used to measure the insulation resistance of medical electrical equipment to detect degraded insulation? → Megohmmeter (megger)
25. When calibrating a pressure transducer to atmospheric pressure, the biomedical technician should confirm the displayed pressure reads: → 0 mmHg
26. What is the most important factor in effective communication with patients regarding patient monitoring? → Using clear, understandable language and confirming understanding
27. What temperature and pressure are maintained during a standard gravity displacement steam sterilization cycle? → 121°C (250°F) at 15 psi
28. In ultrasound imaging, axial resolution is primarily determined by: → Transducer frequency and pulse length
29. Which sterilization method is most appropriate for heat-sensitive flexible endoscopes? → Ethylene oxide (EtO) or hydrogen peroxide gas plasma
30. Which ultrasound imaging mode displays the amplitude of returning echoes as vertical spikes plotted against depth? → A-mode