CCHT (CERTIFIED CLINICAL
HEMODIALYSIS TECHNICIAN – NNCC)
CERTIFICATION FINAL EXAM WITH
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF
1. What is the primary purpose of hemodialysis?
A. Increase red blood cell production
B. Remove waste products and excess fluid from the blood when the kidneys can no longer
perform these functions adequately
C. Cure chronic kidney disease
D. Eliminate the need for medications
CORRECT ANSWER: B — Remove waste products and excess fluid from the blood when the
kidneys can no longer perform these functions adequately
RATIONALE:
Hemodialysis replaces some kidney functions by removing toxins, excess fluid, and balancing
electrolytes in patients with kidney failure.
2. Which vascular access is generally considered the preferred option for long-
term hemodialysis?
A. Central venous catheter (CVC)
B. Arteriovenous (AV) fistula
C. Peripheral IV catheter
D. PICC line
CORRECT ANSWER: B — Arteriovenous (AV) fistula
RATIONALE:
An AV fistula has the lowest infection rate, longest lifespan, and best overall performance for
long-term dialysis.
,3. Before initiating dialysis, the technician should first:
A. Administer medications
B. Verify the patient's identity using approved identifiers
C. Begin blood flow immediately
D. Prime the dialyzer with blood
CORRECT ANSWER: B — Verify the patient's identity using approved identifiers
RATIONALE:
Proper patient identification helps prevent treatment errors and is a critical patient safety
measure.
4. Which assessment finding indicates that an AV fistula is functioning properly?
A. Absence of bruit and thrill
B. Presence of a palpable thrill and audible bruit
C. Redness only
D. Severe pain
CORRECT ANSWER: B — Presence of a palpable thrill and audible bruit
RATIONALE:
A functioning AV fistula should have a continuous thrill and bruit, indicating adequate blood
flow.
5. What is the most common cause of hypotension during hemodialysis?
A. Infection
B. Excessive fluid removal (ultrafiltration)
C. High potassium levels
D. Elevated blood glucose
CORRECT ANSWER: B — Excessive fluid removal (ultrafiltration)
RATIONALE:
Removing fluid too rapidly can reduce circulating blood volume and cause hypotension.
, 6. Which laboratory value is most commonly used to evaluate dialysis adequacy?
A. Hemoglobin only
B. Kt/V or Urea Reduction Ratio (URR)
C. Platelet count
D. White blood cell count
CORRECT ANSWER: B — Kt/V or Urea Reduction Ratio (URR)
RATIONALE:
Kt/V and URR assess how effectively dialysis removes urea from the blood.
7. Which electrolyte is most responsible for life-threatening cardiac arrhythmias
in kidney failure?
A. Calcium
B. Sodium
C. Potassium
D. Magnesium
CORRECT ANSWER: C — Potassium
RATIONALE:
Hyperkalemia can cause dangerous cardiac arrhythmias and requires close monitoring.
8. What should a technician do if a patient complains of chest pain during
dialysis?
A. Ignore the complaint
B. Stop the ultrafiltration if indicated, notify the nurse immediately, and follow emergency
protocols
C. Increase blood flow rate
D. Give the patient water
CORRECT ANSWER: B — Stop the ultrafiltration if indicated, notify the nurse immediately,
and follow emergency protocols
RATIONALE:
Chest pain may indicate a serious cardiac event requiring immediate intervention.
HEMODIALYSIS TECHNICIAN – NNCC)
CERTIFICATION FINAL EXAM WITH
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026
Q&A | INSTANT DOWNLOAD PDF
1. What is the primary purpose of hemodialysis?
A. Increase red blood cell production
B. Remove waste products and excess fluid from the blood when the kidneys can no longer
perform these functions adequately
C. Cure chronic kidney disease
D. Eliminate the need for medications
CORRECT ANSWER: B — Remove waste products and excess fluid from the blood when the
kidneys can no longer perform these functions adequately
RATIONALE:
Hemodialysis replaces some kidney functions by removing toxins, excess fluid, and balancing
electrolytes in patients with kidney failure.
2. Which vascular access is generally considered the preferred option for long-
term hemodialysis?
A. Central venous catheter (CVC)
B. Arteriovenous (AV) fistula
C. Peripheral IV catheter
D. PICC line
CORRECT ANSWER: B — Arteriovenous (AV) fistula
RATIONALE:
An AV fistula has the lowest infection rate, longest lifespan, and best overall performance for
long-term dialysis.
,3. Before initiating dialysis, the technician should first:
A. Administer medications
B. Verify the patient's identity using approved identifiers
C. Begin blood flow immediately
D. Prime the dialyzer with blood
CORRECT ANSWER: B — Verify the patient's identity using approved identifiers
RATIONALE:
Proper patient identification helps prevent treatment errors and is a critical patient safety
measure.
4. Which assessment finding indicates that an AV fistula is functioning properly?
A. Absence of bruit and thrill
B. Presence of a palpable thrill and audible bruit
C. Redness only
D. Severe pain
CORRECT ANSWER: B — Presence of a palpable thrill and audible bruit
RATIONALE:
A functioning AV fistula should have a continuous thrill and bruit, indicating adequate blood
flow.
5. What is the most common cause of hypotension during hemodialysis?
A. Infection
B. Excessive fluid removal (ultrafiltration)
C. High potassium levels
D. Elevated blood glucose
CORRECT ANSWER: B — Excessive fluid removal (ultrafiltration)
RATIONALE:
Removing fluid too rapidly can reduce circulating blood volume and cause hypotension.
, 6. Which laboratory value is most commonly used to evaluate dialysis adequacy?
A. Hemoglobin only
B. Kt/V or Urea Reduction Ratio (URR)
C. Platelet count
D. White blood cell count
CORRECT ANSWER: B — Kt/V or Urea Reduction Ratio (URR)
RATIONALE:
Kt/V and URR assess how effectively dialysis removes urea from the blood.
7. Which electrolyte is most responsible for life-threatening cardiac arrhythmias
in kidney failure?
A. Calcium
B. Sodium
C. Potassium
D. Magnesium
CORRECT ANSWER: C — Potassium
RATIONALE:
Hyperkalemia can cause dangerous cardiac arrhythmias and requires close monitoring.
8. What should a technician do if a patient complains of chest pain during
dialysis?
A. Ignore the complaint
B. Stop the ultrafiltration if indicated, notify the nurse immediately, and follow emergency
protocols
C. Increase blood flow rate
D. Give the patient water
CORRECT ANSWER: B — Stop the ultrafiltration if indicated, notify the nurse immediately,
and follow emergency protocols
RATIONALE:
Chest pain may indicate a serious cardiac event requiring immediate intervention.
