Best CHT Practice Questions 2027: What to Expect on the Exam

Understanding the CHT Exam Structure

The BONENT Certified Hemodialysis Technologist/Technician (CHT) exam is a comprehensive assessment that evaluates your knowledge and competency in hemodialysis care. With 150 multiple-choice questions administered within a 3-hour time limit, this exam requires thorough preparation and strategic practice. Understanding what to expect on the exam is crucial for success, especially when you consider the current CHT pass rates and success statistics.

The exam uses a scaled scoring system with a passing score of 70, meaning your raw score is converted to ensure fairness across different test versions. This makes it essential to answer as many questions correctly as possible, as you cannot predict exactly how many raw points you need. For comprehensive preparation strategies, refer to our detailed CHT study guide that covers all exam preparation essentials.

Practice Questions by Domain

Effective CHT exam preparation requires understanding how questions are distributed across the five content domains. Each domain represents a specific percentage of the exam, and your practice should reflect these proportions. The complete guide to all 5 CHT content areas provides detailed breakdowns of what each domain covers.

Domain	Percentage	Approximate Questions	Focus Areas
Patient Care	45%	68 questions	Treatment delivery, monitoring, documentation
Infection Control	18%	27 questions	Protocols, prevention, safety measures
Water Treatment	15%	23 questions	Systems, quality, troubleshooting
Machine Technology	12%	18 questions	Equipment operation, maintenance, alarms
Education & Professional Development	10%	15 questions	Patient education, professional growth

Understanding these proportions helps you allocate study time effectively. Since Patient Care represents nearly half the exam, it deserves the most attention in your preparation. However, don't neglect the smaller domains, as every point counts toward reaching that crucial 70% passing threshold.

Domain 1: Patient Care Questions (45%)

Patient Care is the largest domain on the CHT exam, representing 45% of all questions. This domain covers the core responsibilities of hemodialysis technicians, including treatment delivery, patient monitoring, vascular access care, and documentation. For comprehensive coverage of this critical area, study our complete Patient Care domain guide.

Sample Patient Care Practice Questions

Question 1: A patient's blood pressure drops to 85/50 mmHg during the second hour of treatment. What is the most appropriate immediate action?

• A) Increase the ultrafiltration rate
• B) Place the patient in Trendelenburg position
• C) Administer normal saline as ordered
• D) Continue treatment and monitor closely

Correct Answer: B) Place the patient in Trendelenburg position. This position helps improve venous return and blood pressure during hypotensive episodes.

Question 2: When accessing an arteriovenous fistula, the needle insertion angle should be:

• A) 90 degrees to the skin surface
• B) 25-30 degrees in the direction of blood flow
• C) 45 degrees against the direction of blood flow
• D) 15 degrees perpendicular to the fistula

Correct Answer: B) 25-30 degrees in the direction of blood flow. This angle minimizes trauma while ensuring proper needle placement.

Key Patient Care Topics

Patient Care questions commonly cover these essential areas:

• Vascular Access Management: Fistula and graft care, catheter maintenance, needle insertion techniques
• Treatment Parameters: Blood flow rates, dialysate flow, ultrafiltration goals
• Patient Monitoring: Vital signs, symptoms recognition, emergency responses
• Documentation Requirements: Treatment records, incident reporting, patient assessments
• Complications Management: Hypotension, cramping, clotting, air embolism

Domain 2: Machine Technology Questions (12%)

Machine Technology represents 12% of the CHT exam and focuses on dialysis equipment operation, maintenance, and troubleshooting. This domain requires technical knowledge of dialysis machines, alarms, and safety systems. Our Machine Technology study guide provides detailed coverage of all equipment-related topics.

Sample Machine Technology Practice Questions

Question 3: The dialysis machine's arterial pressure alarm is sounding. The most likely cause is:

• A) Venous needle displacement
• B) Arterial needle infiltration or access problem
• C) High ultrafiltration rate
• D) Dialysate temperature too high

Correct Answer: B) Arterial needle infiltration or access problem. Arterial pressure alarms typically indicate issues with blood withdrawal from the access.

Question 4: During machine setup, the conductivity reading is outside acceptable limits. The technician should:

• A) Proceed with treatment using manual override
• B) Adjust the acid concentrate proportion
• C) Check concentrate connections and mixing ratios
• D) Increase the dialysate flow rate

Correct Answer: C) Check concentrate connections and mixing ratios. Conductivity problems usually stem from concentrate mixing issues.

Domain 3: Water Treatment Questions (15%)

Water Treatment accounts for 15% of the CHT exam and covers water quality standards, treatment systems, monitoring procedures, and troubleshooting. This domain emphasizes the critical importance of pure water in dialysis treatment. For comprehensive coverage, review our Water Treatment domain study guide.

Sample Water Treatment Practice Questions

Question 5: The maximum allowable bacterial count in dialysis water is:

• A) 100 CFU/mL
• B) 200 CFU/mL
• C) 500 CFU/mL
• D) 1000 CFU/mL

Correct Answer: A) 100 CFU/mL. This is the AAMI standard for maximum bacterial contamination in treated water for dialysis.

Question 6: Reverse osmosis membranes should be replaced when rejection rates fall below:

• A) 85%
• B) 90%
• C) 95%
• D) 98%

Correct Answer: C) 95%. When RO rejection falls below 95%, membrane replacement is typically required to maintain water quality standards.

Domain 4: Infection Control Questions (18%)

Infection Control represents 18% of the CHT exam and covers prevention protocols, safety measures, and regulatory compliance. This domain is crucial given the high infection risk in dialysis settings. Study our comprehensive Infection Control domain guide for complete coverage of all safety protocols.

Sample Infection Control Practice Questions

Question 7: When should hand hygiene be performed during dialysis treatment?

• A) Only before patient contact
• B) Before and after patient contact only
• C) Before patient contact, after contact, and between procedures
• D) Only when hands are visibly soiled

Correct Answer: C) Before patient contact, after contact, and between procedures. Hand hygiene is required at multiple points to prevent cross-contamination.

Domain 5: Education and Professional Development Questions (10%)

Education and Professional Development comprises 10% of the exam and covers patient education, staff training, and professional growth responsibilities. Despite being the smallest domain, these questions are important for overall success. Our Education and Professional Development guide covers all aspects of this domain.

Sample Education and Professional Development Practice Questions

Question 8: When teaching a new dialysis patient about dietary restrictions, the most effective approach is:

• A) Providing written materials only
• B) Using multiple teaching methods and assessing understanding
• C) Having the patient read educational pamphlets
• D) Showing educational videos exclusively

Correct Answer: B) Using multiple teaching methods and assessing understanding. Effective patient education requires varied approaches and verification of comprehension.

Effective Practice Strategies

Successful CHT exam preparation requires more than just reading study materials. Implementing effective practice strategies significantly improves your chances of passing on the first attempt. Consider the difficulty level of the exam and plan accordingly by reviewing our analysis of how challenging the CHT exam really is.

Structured Practice Approach

Organize your practice sessions using these proven strategies:

1. Domain-Based Practice: Focus on one domain at a time, spending more time on Patient Care given its 45% weight
2. Timed Practice Sessions: Practice with the actual time constraints - aim for 72 seconds per question
3. Mixed Domain Reviews: After mastering individual domains, practice with mixed questions to simulate exam conditions
4. Weakness Identification: Track your performance by domain and focus additional study time on areas of weakness

Take advantage of our comprehensive free CHT practice tests to assess your readiness and identify areas needing improvement. These practice tests simulate the actual exam environment and provide detailed explanations for each question.

Question Analysis Techniques

Develop systematic approaches to analyzing practice questions:

• Read Completely: Read each question stem and all answer choices before selecting an answer
• Identify Keywords: Look for critical terms that indicate priority, sequence, or specific requirements
• Eliminate Obviously Wrong Answers: Use process of elimination to improve your odds
• Apply Clinical Reasoning: Consider patient safety and best practices when choosing answers
• Review Explanations: Always read explanations for both correct and incorrect answers

Common Mistakes to Avoid

Learning from common mistakes can prevent costly errors on exam day. Many candidates make predictable mistakes that can be easily avoided with proper preparation and awareness.

Content-Related Mistakes

Common content mistakes include:

• Confusing Normal Values: Memorize key laboratory values, vital sign ranges, and treatment parameters
• Mixing Up Procedures: Practice distinguishing between similar procedures and their specific requirements
• Ignoring Safety Priorities: Always choose the answer that prioritizes patient safety when multiple options seem correct
• Overlooking Documentation: Remember that proper documentation is often part of the correct procedure

Test-Taking Mistakes

Avoid these common test-taking errors:

• Rushing Through Questions: Use your full 3 hours wisely - don't rush early questions
• Second-Guessing Correct Answers: Trust your initial instinct unless you identify a clear error
• Leaving Questions Blank: There's no penalty for wrong answers, so attempt every question
• Misreading Question Stems: Pay attention to words like "first," "most appropriate," or "except"

Final Preparation Tips

The final weeks before your CHT exam are crucial for consolidating your knowledge and building confidence. Your preparation strategy should balance continued learning with maintaining peak performance on exam day. For specific day-of-exam strategies, review our comprehensive 15 proven strategies to maximize your CHT exam score.

Two Weeks Before the Exam

Focus on these final preparation activities:

• Complete Final Practice Tests: Take your last full-length practice exam to gauge readiness
• Review Weak Areas: Spend concentrated time on domains where you scored lowest
• Create Quick Reference Sheets: Compile key facts, formulas, and normal values for final review
• Confirm Exam Details: Verify your exam date, time, location, and required identification

Week of the Exam

During exam week, focus on maintaining confidence and avoiding burnout:

• Light Review Only: Review your reference sheets but avoid learning new material
• Maintain Normal Routine: Keep regular sleep and exercise schedules
• Prepare Exam Day Materials: Gather required identification and any permitted items
• Practice Relaxation Techniques: Use stress management techniques to stay calm

Consider the long-term value of CHT certification for your career. Understanding whether CHT certification provides good return on investment can motivate you through challenging preparation periods and reinforce the importance of passing on your first attempt.

Building Long-Term Success

Remember that CHT certification requires renewal every four years through continuing education or retesting. Start planning for CHT recertification requirements and timeline even before taking your initial exam. This long-term perspective helps you view the exam as the beginning of your professional development journey rather than just a one-time hurdle.

For more comprehensive preparation support, utilize our complete collection of study resources and practice tests designed specifically for CHT exam success. These tools provide the structured practice and detailed explanations you need to approach the exam with confidence.