CERTIFIED DIALYSIS NURSE EXAM – PRACTICE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
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CORE DOMAINS
• Concepts of Renal Failure and Management
• Hemodialysis and Peritoneal Dialysis Therapies
• Transplant and Alternative Therapies
• Pharmacological Interventions
• Regulatory Compliance and Patient Safety
• Professional Practice and Standards
• Patient Education and Psychosocial Care
• Quality Improvement and Technical Operations
INTRODUCTION
The purpose of this comprehensive assessment is to evaluate the clinical proficiency
and specialized knowledge required for the Certified Dialysis Nurse (CDN)
designation. The examination focuses on the critical skills necessary to provide safe,
effective care for patients with end-stage renal disease. It utilizes a combination of
,foundational multiple-choice questions and complex scenario-based items to mirror
real-world clinical environments. Candidates are assessed on their ability to integrate
physiological principles with technical expertise, regulatory adherence, and ethical
decision-making. This resource emphasizes clinical application, requiring the nurse to
prioritize patient safety and demonstrate advanced critical thinking in high-stakes
dialysis settings.
1. Which of the following is the most significant clinical indicator of a dialysis
patient experiencing Disequilibrium Syndrome?
A. Hypertension and bradycardia
B. Sudden onset of muscle cramps
C. Cerebral edema leading to headaches and confusion
D. Peripheral edema and jugular venous distention
🟢 Correct answer C. Option
🔴 RATIONALE: Disequilibrium syndrome is caused by the rapid removal of urea
from the blood, creating an osmotic gradient that shifts water into the brain cells,
resulting in cerebral edema and neurological symptoms.
2. During a hemodialysis session, a patient’s venous pressure alarm sounds.
Which of the following should be the nurse’s first action?
,A. Increase the blood pump speed
B. Check the venous needle site and tubing for kinks
C. Administer a saline bolus
D. Decrease the ultrafiltration rate
🟢 Correct answer B. Option
🔴 RATIONALE: A venous pressure alarm indicates resistance to the return of blood;
checking for physical obstructions like kinks or needle infiltration is the priority
troubleshooting step.
3. Which regulatory body is primarily responsible for establishing the Conditions
for Coverage that dialysis facilities must meet for Medicare reimbursement?
A. ANNA
B. CMS
C. FDA
D. CDC
🟢 Correct answer B. Option
🔴 RATIONALE: The Centers for Medicare & Medicaid Services (CMS) mandates
the Conditions for Coverage which define the health and safety standards facilities
must meet to receive federal funding.
, 4. A patient with Chronic Kidney Disease (CKD) Stage 5 is prescribed Sevelamer.
What is the primary purpose of this medication?
A. To increase red blood cell production
B. To treat metabolic alkalosis
C. To bind dietary phosphorus in the gut
D. To supplement vitamin D levels
🟢 Correct answer C. Option
🔴 RATIONALE: Sevelamer is a phosphate binder used to prevent the absorption of
phosphorus from food, helping to manage hyperphosphatemia in dialysis patients.
5. When performing a physical assessment of a new Arteriovenous (AV) fistula, the
nurse notes the absence of a thrill. This likely indicates:
A. A well-matured access
B. High-pressure arterial flow
C. Thrombosis or stenosis of the access
D. Normal venous development
🟢 Correct answer C. Option
🔴 RATIONALE: A "thrill" is the palpable vibration of blood flow; its absence suggests
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
CORE DOMAINS
• Concepts of Renal Failure and Management
• Hemodialysis and Peritoneal Dialysis Therapies
• Transplant and Alternative Therapies
• Pharmacological Interventions
• Regulatory Compliance and Patient Safety
• Professional Practice and Standards
• Patient Education and Psychosocial Care
• Quality Improvement and Technical Operations
INTRODUCTION
The purpose of this comprehensive assessment is to evaluate the clinical proficiency
and specialized knowledge required for the Certified Dialysis Nurse (CDN)
designation. The examination focuses on the critical skills necessary to provide safe,
effective care for patients with end-stage renal disease. It utilizes a combination of
,foundational multiple-choice questions and complex scenario-based items to mirror
real-world clinical environments. Candidates are assessed on their ability to integrate
physiological principles with technical expertise, regulatory adherence, and ethical
decision-making. This resource emphasizes clinical application, requiring the nurse to
prioritize patient safety and demonstrate advanced critical thinking in high-stakes
dialysis settings.
1. Which of the following is the most significant clinical indicator of a dialysis
patient experiencing Disequilibrium Syndrome?
A. Hypertension and bradycardia
B. Sudden onset of muscle cramps
C. Cerebral edema leading to headaches and confusion
D. Peripheral edema and jugular venous distention
🟢 Correct answer C. Option
🔴 RATIONALE: Disequilibrium syndrome is caused by the rapid removal of urea
from the blood, creating an osmotic gradient that shifts water into the brain cells,
resulting in cerebral edema and neurological symptoms.
2. During a hemodialysis session, a patient’s venous pressure alarm sounds.
Which of the following should be the nurse’s first action?
,A. Increase the blood pump speed
B. Check the venous needle site and tubing for kinks
C. Administer a saline bolus
D. Decrease the ultrafiltration rate
🟢 Correct answer B. Option
🔴 RATIONALE: A venous pressure alarm indicates resistance to the return of blood;
checking for physical obstructions like kinks or needle infiltration is the priority
troubleshooting step.
3. Which regulatory body is primarily responsible for establishing the Conditions
for Coverage that dialysis facilities must meet for Medicare reimbursement?
A. ANNA
B. CMS
C. FDA
D. CDC
🟢 Correct answer B. Option
🔴 RATIONALE: The Centers for Medicare & Medicaid Services (CMS) mandates
the Conditions for Coverage which define the health and safety standards facilities
must meet to receive federal funding.
, 4. A patient with Chronic Kidney Disease (CKD) Stage 5 is prescribed Sevelamer.
What is the primary purpose of this medication?
A. To increase red blood cell production
B. To treat metabolic alkalosis
C. To bind dietary phosphorus in the gut
D. To supplement vitamin D levels
🟢 Correct answer C. Option
🔴 RATIONALE: Sevelamer is a phosphate binder used to prevent the absorption of
phosphorus from food, helping to manage hyperphosphatemia in dialysis patients.
5. When performing a physical assessment of a new Arteriovenous (AV) fistula, the
nurse notes the absence of a thrill. This likely indicates:
A. A well-matured access
B. High-pressure arterial flow
C. Thrombosis or stenosis of the access
D. Normal venous development
🟢 Correct answer C. Option
🔴 RATIONALE: A "thrill" is the palpable vibration of blood flow; its absence suggests
