CHBT Study Guide 2026
Everything you need to pass the CHBT 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.
📋 CHBT Exam Format at a Glance
📚 CHBT Topics to Study (43)
✍️ Sample CHBT Questions & Answers
1. Which sign indicates possible stenosis in an arteriovenous fistula?
Stenosis restricts flow, causing elevated venous pressure as blood backs up behind the obstruction. The thrill (vibration) is diminished distal to the narrowing. This warrants referral for imaging (fistulogram) and possible angioplasty.
2. When a dialysis patient experiences an adverse event such as a blood leak or machine malfunction during treatment, the technician is required to:
Adverse events must be documented in both the patient's treatment record and an incident report to support quality review, regulatory compliance, and prevention of future occurrences.
3. Which of the following is the most critical immediate action when a patient on hemodialysis develops sudden hypotension?
Sudden hypotension during hemodialysis is managed by placing the patient in Trendelenburg position (legs elevated) and administering a normal saline bolus to restore circulating volume. Increasing ultrafiltration would worsen hypotension.
4. What does 'standard precautions' require in a dialysis setting?
Standard precautions apply universally to all patients. This includes hand hygiene, appropriate PPE (gloves for blood/fluid contact, gown/eye protection when splash risk exists), safe needle handling, and environmental cleaning.
5. Why should blood pressure never be measured in the arm containing an arteriovenous fistula?
BP cuff inflation compresses the fistula, interrupting high-volume flow and risking thrombosis. Additionally, venipuncture, IV lines, and tight clothing are also contraindicated in the fistula arm.
6. What is the primary safety risk if chloramines are not adequately removed from dialysis water?
Chloramines pass freely through dialyzer membranes, entering the bloodstream and oxidizing red blood cell membranes, causing hemolysis and potentially fatal anemia.