DaVita RN Final Exam 2026/2027 |
Hemodialysis Nursing Questions and
Answers
DAVITA RN FINAL EXAM 2026/2027 |
HEMODIALYSIS NURSING
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
• Hemodialysis Principles and Solute Clearance
• Vascular Access Assessment and Cannulation
• Dialysis Adequacy and Laboratory Interpretation
• Intradialytic Complications and Emergency Management
• Infection Control and Water Quality Standards
• Anemia Management and CKD-MBD
• Patient Education and Dietary Counseling
• DaVita Policies, Scope of Practice, and Documentation
Introduction
The DaVita RN Final Exam validates clinical competency for registered nurses
practicing in hemodialysis settings, aligned with DaVita Clinical Services
,Policies and Procedures, NNCC certification standards, and AAMI/CDC
guidelines. The examination emphasizes clinical application, safety-critical
decision-making, and evidence-based practice across pre-treatment
assessment, vascular access management, dialysis principles, complication
recognition, and patient education. Candidates must demonstrate
competency in solute clearance mechanisms, access surveillance,
intradialytic monitoring, infection control, and interdisciplinary collaboration.
The assessment underscores the RN’s role in care planning, delegation, and
ensuring safe, effective dialysis treatments.
SECTION ONE: QUESTIONS 1–100
1. During hemodialysis, urea moves from the blood compartment to
the dialysate compartment primarily through which mechanism?
A. Ultrafiltration
B. Convection
C. Diffusion
D. Osmosis
C. Diffusion
RATIONALE: Diffusion is the primary mechanism for solute removal in
hemodialysis. Urea and other small molecular weight solutes move across
the semipermeable membrane from an area of higher concentration (blood)
to lower concentration (dialysate) along the concentration gradient .
2. A patient requires removal of 3.5 kg of fluid during a 4-hour
dialysis treatment. What is the required ultrafiltration rate?
A. 500 mL/hr
B. 875 mL/hr
C. 1,000 mL/hr
D. 1,200 mL/hr
B. 875 mL/hr
RATIONALE: Ultrafiltration rate calculation: 3.5 kg = 3,500 mL; 3,500 mL
÷ 4 hours = 875 mL/hr. The ultrafiltration rate should generally not exceed
10–13 mL/kg/hr to minimize intradialytic hypotension and cramping .
,3. Which characteristic best describes a high-flux dialyzer
membrane?
A. Pore size that allows only small solutes (urea, creatinine) to pass
B. Increased permeability to middle molecules (β2-microglobulin, 11,800
Da)
C. Requires lower blood flow rates for equivalent clearance
D. Cannot be used with standard dialysis machines
B. Increased permeability to middle molecules (β2-microglobulin, 11,800
Da)
RATIONALE: High-flux dialyzers have larger pore sizes and higher
hydraulic permeability (KUF >20 mL/hr/mmHg), allowing removal of middle
molecules such as β2-microglobulin (11,800 Da) in addition to small solutes.
This reduces amyloidosis risk .
4. In countercurrent flow dialysis, blood and dialysate flow in
opposite directions. What is the primary advantage of this design?
A. Reduces the risk of air embolism
B. Maintains a concentration gradient along the entire dialyzer length
C. Allows for higher ultrafiltration rates
D. Prevents dialyzer clotting
B. Maintains a concentration gradient along the entire dialyzer length
RATIONALE: Countercurrent flow maintains the steepest possible
concentration gradient between blood and dialysate along the entire length
of the dialyzer. This design maximizes solute clearance efficiency and is
standard in all modern dialyzers .
5. A patient’s dialysate sodium is set at 138 mEq/L. The patient’s
serum sodium is 140 mEq/L. Which direction will sodium move
during dialysis?
A. From dialysate to blood
B. From blood to dialysate
C. No net movement will occur
D. Movement depends on blood flow rate
B. From blood to dialysate
, RATIONALE: Sodium moves by diffusion from higher to lower
concentration. With serum sodium (140 mEq/L) higher than dialysate
sodium (138 mEq/L), sodium will move from blood to dialysate. This 2
mEq/L gradient promotes mild sodium removal .
6. Which solute is primarily removed by convection rather than
diffusion during hemodialysis?
A. Urea (60 Da)
B. Creatinine (113 Da)
C. β2-microglobulin (11,800 Da)
D. Potassium (39 Da)
C. β2-microglobulin (11,800 Da)
RATIONALE: Convection removes solutes through solvent drag during
ultrafiltration. Larger middle molecules such as β2-microglobulin are
primarily removed by convection, whereas small solutes like urea and
creatinine are removed primarily by diffusion .
7. During pre-treatment assessment of a patient’s left forearm
radiocephalic AV fistula, the nurse notes a strong, palpable thrill but
a barely audible bruit. What is the nurse’s priority action?
A. Proceed with cannulation as planned; this is a normal finding
B. Notify the charge nurse or nephrologist immediately, as this may indicate
a stenosis
C. Use a smaller gauge needle for cannulation
D. Apply a warm compress to the access site
B. Notify the charge nurse or nephrologist immediately, as this may
indicate a stenosis
RATIONALE: A strong thrill with a weak bruit is a classic sign of venous
stenosis downstream from the palpated thrill. The turbulent blood flow
(causing the thrill) is hitting a narrowed area, dampening the audible bruit.
This requires immediate evaluation (possibly with a fistulogram) as it
threatens access longevity and can lead to high venous pressures during
treatment .
8. A patient presents with a tunneled dialysis catheter (TDC) in the
right internal jugular vein. During pre-treatment assessment, the
Hemodialysis Nursing Questions and
Answers
DAVITA RN FINAL EXAM 2026/2027 |
HEMODIALYSIS NURSING
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
• Hemodialysis Principles and Solute Clearance
• Vascular Access Assessment and Cannulation
• Dialysis Adequacy and Laboratory Interpretation
• Intradialytic Complications and Emergency Management
• Infection Control and Water Quality Standards
• Anemia Management and CKD-MBD
• Patient Education and Dietary Counseling
• DaVita Policies, Scope of Practice, and Documentation
Introduction
The DaVita RN Final Exam validates clinical competency for registered nurses
practicing in hemodialysis settings, aligned with DaVita Clinical Services
,Policies and Procedures, NNCC certification standards, and AAMI/CDC
guidelines. The examination emphasizes clinical application, safety-critical
decision-making, and evidence-based practice across pre-treatment
assessment, vascular access management, dialysis principles, complication
recognition, and patient education. Candidates must demonstrate
competency in solute clearance mechanisms, access surveillance,
intradialytic monitoring, infection control, and interdisciplinary collaboration.
The assessment underscores the RN’s role in care planning, delegation, and
ensuring safe, effective dialysis treatments.
SECTION ONE: QUESTIONS 1–100
1. During hemodialysis, urea moves from the blood compartment to
the dialysate compartment primarily through which mechanism?
A. Ultrafiltration
B. Convection
C. Diffusion
D. Osmosis
C. Diffusion
RATIONALE: Diffusion is the primary mechanism for solute removal in
hemodialysis. Urea and other small molecular weight solutes move across
the semipermeable membrane from an area of higher concentration (blood)
to lower concentration (dialysate) along the concentration gradient .
2. A patient requires removal of 3.5 kg of fluid during a 4-hour
dialysis treatment. What is the required ultrafiltration rate?
A. 500 mL/hr
B. 875 mL/hr
C. 1,000 mL/hr
D. 1,200 mL/hr
B. 875 mL/hr
RATIONALE: Ultrafiltration rate calculation: 3.5 kg = 3,500 mL; 3,500 mL
÷ 4 hours = 875 mL/hr. The ultrafiltration rate should generally not exceed
10–13 mL/kg/hr to minimize intradialytic hypotension and cramping .
,3. Which characteristic best describes a high-flux dialyzer
membrane?
A. Pore size that allows only small solutes (urea, creatinine) to pass
B. Increased permeability to middle molecules (β2-microglobulin, 11,800
Da)
C. Requires lower blood flow rates for equivalent clearance
D. Cannot be used with standard dialysis machines
B. Increased permeability to middle molecules (β2-microglobulin, 11,800
Da)
RATIONALE: High-flux dialyzers have larger pore sizes and higher
hydraulic permeability (KUF >20 mL/hr/mmHg), allowing removal of middle
molecules such as β2-microglobulin (11,800 Da) in addition to small solutes.
This reduces amyloidosis risk .
4. In countercurrent flow dialysis, blood and dialysate flow in
opposite directions. What is the primary advantage of this design?
A. Reduces the risk of air embolism
B. Maintains a concentration gradient along the entire dialyzer length
C. Allows for higher ultrafiltration rates
D. Prevents dialyzer clotting
B. Maintains a concentration gradient along the entire dialyzer length
RATIONALE: Countercurrent flow maintains the steepest possible
concentration gradient between blood and dialysate along the entire length
of the dialyzer. This design maximizes solute clearance efficiency and is
standard in all modern dialyzers .
5. A patient’s dialysate sodium is set at 138 mEq/L. The patient’s
serum sodium is 140 mEq/L. Which direction will sodium move
during dialysis?
A. From dialysate to blood
B. From blood to dialysate
C. No net movement will occur
D. Movement depends on blood flow rate
B. From blood to dialysate
, RATIONALE: Sodium moves by diffusion from higher to lower
concentration. With serum sodium (140 mEq/L) higher than dialysate
sodium (138 mEq/L), sodium will move from blood to dialysate. This 2
mEq/L gradient promotes mild sodium removal .
6. Which solute is primarily removed by convection rather than
diffusion during hemodialysis?
A. Urea (60 Da)
B. Creatinine (113 Da)
C. β2-microglobulin (11,800 Da)
D. Potassium (39 Da)
C. β2-microglobulin (11,800 Da)
RATIONALE: Convection removes solutes through solvent drag during
ultrafiltration. Larger middle molecules such as β2-microglobulin are
primarily removed by convection, whereas small solutes like urea and
creatinine are removed primarily by diffusion .
7. During pre-treatment assessment of a patient’s left forearm
radiocephalic AV fistula, the nurse notes a strong, palpable thrill but
a barely audible bruit. What is the nurse’s priority action?
A. Proceed with cannulation as planned; this is a normal finding
B. Notify the charge nurse or nephrologist immediately, as this may indicate
a stenosis
C. Use a smaller gauge needle for cannulation
D. Apply a warm compress to the access site
B. Notify the charge nurse or nephrologist immediately, as this may
indicate a stenosis
RATIONALE: A strong thrill with a weak bruit is a classic sign of venous
stenosis downstream from the palpated thrill. The turbulent blood flow
(causing the thrill) is hitting a narrowed area, dampening the audible bruit.
This requires immediate evaluation (possibly with a fistulogram) as it
threatens access longevity and can lead to high venous pressures during
treatment .
8. A patient presents with a tunneled dialysis catheter (TDC) in the
right internal jugular vein. During pre-treatment assessment, the
