1
Certified Clinical
Hemodialysis Technician
(CCHT) Examination
Advanced Practice
Question Bank – Version
2.0 a well detailed one
written and
graded A+ upgraded
, 2
EXAM OVERVIEW
The Certified Clinical Hemodialysis Technician (CCHT) examination is administered by
the Nephrology Nursing Certification Commission (NNCC). The exam consists of 150 multiple-
choice questions (including 25 ungraded pilot questions) with a 3-hour time limit. A passing
score is 74% or higher.
Exam Blueprint Distribution:
Domain Weight
Clinical 48-52%
Technical 21-25%
Environment 13-17%
Role Responsibilities 10-14%
Cognitive Level Distribution:
• Knowledge: 8-12%
• Comprehension: 23-27%
• Application: 63-67%
DOMAIN I: CLINICAL (48-52%)
Section A: Vascular Access Assessment and Cannulation
Question 1
A technician is performing a pre-cannulation assessment on a patient with a 6-week-old AV
fistula in the left forearm. Which finding would be MOST concerning and require immediate
notification of the registered nurse?
A) A palpable thrill that is strongest at the anastomosis and diminishes distally
B) An audible bruit that is continuous throughout the cardiac cycle
, 3
C) A localized pulsatile mass that has increased in size over the past week
D) A visible venous prominence that flattens when the arm is elevated above heart level
- detailed answer 100% correct :- C
Rationale: A localized pulsatile mass that has increased in size is characteristic of a developing
aneurysm or pseudoaneurysm. These lesions are at increased risk of rupture and hemorrhage.
While a thrill and bruit are expected findings in a maturing fistula, a pulsatile mass with
progressive enlargement represents a structural complication requiring prompt evaluation.
Visible venous prominence that flattens with elevation is a normal finding indicating venous
distensibility.
Question 2
A patient presents for hemodialysis with a tunneled central venous catheter that has been in
place for 14 days. During the pre-treatment assessment, the technician notes that the catheter
exit site is erythematous with purulent drainage. The patient's temperature is 38.2°C. The
technician should:
A) Clean the exit site, apply a new sterile dressing, and proceed with treatment
B) Obtain blood cultures from the catheter and a peripheral vein before initiating treatment
C) Notify the nurse immediately and prepare the patient for possible catheter removal
D) Flush both lumens with 10 mL of sterile saline and proceed with treatment
- detailed answer 100% correct :- C
Rationale: The presentation of exit site erythema, purulent drainage, and fever is highly
suggestive of a catheter-related bloodstream infection (CRBSI). The technician must notify the
registered nurse immediately. Catheter-related infections are a leading cause of morbidity and
mortality in hemodialysis patients. While blood cultures may be indicated, this is a
nursing/physician decision. Continuing treatment without addressing the infection could result
in sepsis. Flushing the catheter would not treat the infection and could disseminate organisms.
Question 3
A technician is preparing to cannulate an AV fistula using the buttonhole technique. The patient
has been using this technique for the past 4 months with consistent success. Which of the
following represents the MOST critical safety consideration for this cannulation?
A) The same cannulator must perform every cannulation to maintain track integrity
B) The needle must be inserted at a 45-degree angle to prevent track damage
, 4
C) A blunt needle must be used to prevent cutting the established tissue track
D) The site must be rotated to a different location for each treatment
- detailed answer 100% correct :- C
Rationale: In the buttonhole technique, after the track is established (typically after 6-10
consecutive cannulations with sharp needles), blunt needles must be used exclusively. Blunt
needles slide through the established tissue track without cutting or damaging it. Using sharp
needles in an established track can cause damage, bleeding, and infiltration. The same
cannulator is recommended but not an absolute requirement. The 45-degree angle is
appropriate for standard cannulation but not specific to buttonhole technique. Site rotation is
characteristic of the rope ladder technique, not buttonhole.
Question 4
During cannulation of a patient's AV graft, the technician obtains a blood return that is bright
red, pulsatile, and under high pressure. The technician should:
A) Continue cannulation as the graft is functioning properly
B) Remove the needle and apply firm pressure for at least 10 minutes
C) Flush the needle with 5 mL of normal saline and proceed
D) Advance the needle an additional 1 cm to ensure proper placement
- detailed answer 100% correct :- B
Rationale: Bright red, pulsatile blood under high pressure indicates accidental arterial
cannulation rather than venous access. This is a critical error that requires immediate removal
of the needle and application of firm pressure to prevent hematoma formation and potential
arterial injury. Applying pressure for at least 10 minutes is essential to achieve hemostasis.
Continuing, flushing, or advancing the needle could result in significant hemorrhage,
pseudoaneurysm formation, or arterial damage.
Question 5
A technician is assessing a patient's AV fistula one hour after completing hemodialysis. The
technician notes a strong thrill and bruit but observes that the puncture sites are oozing blood.
The patient's most recent laboratory results show a hemoglobin of 9.8 g/dL and a platelet count
of 98,000/μL. The technician should:
A) Reapply pressure dressings and discharge the patient
B) Apply ice packs to the puncture sites
Certified Clinical
Hemodialysis Technician
(CCHT) Examination
Advanced Practice
Question Bank – Version
2.0 a well detailed one
written and
graded A+ upgraded
, 2
EXAM OVERVIEW
The Certified Clinical Hemodialysis Technician (CCHT) examination is administered by
the Nephrology Nursing Certification Commission (NNCC). The exam consists of 150 multiple-
choice questions (including 25 ungraded pilot questions) with a 3-hour time limit. A passing
score is 74% or higher.
Exam Blueprint Distribution:
Domain Weight
Clinical 48-52%
Technical 21-25%
Environment 13-17%
Role Responsibilities 10-14%
Cognitive Level Distribution:
• Knowledge: 8-12%
• Comprehension: 23-27%
• Application: 63-67%
DOMAIN I: CLINICAL (48-52%)
Section A: Vascular Access Assessment and Cannulation
Question 1
A technician is performing a pre-cannulation assessment on a patient with a 6-week-old AV
fistula in the left forearm. Which finding would be MOST concerning and require immediate
notification of the registered nurse?
A) A palpable thrill that is strongest at the anastomosis and diminishes distally
B) An audible bruit that is continuous throughout the cardiac cycle
, 3
C) A localized pulsatile mass that has increased in size over the past week
D) A visible venous prominence that flattens when the arm is elevated above heart level
- detailed answer 100% correct :- C
Rationale: A localized pulsatile mass that has increased in size is characteristic of a developing
aneurysm or pseudoaneurysm. These lesions are at increased risk of rupture and hemorrhage.
While a thrill and bruit are expected findings in a maturing fistula, a pulsatile mass with
progressive enlargement represents a structural complication requiring prompt evaluation.
Visible venous prominence that flattens with elevation is a normal finding indicating venous
distensibility.
Question 2
A patient presents for hemodialysis with a tunneled central venous catheter that has been in
place for 14 days. During the pre-treatment assessment, the technician notes that the catheter
exit site is erythematous with purulent drainage. The patient's temperature is 38.2°C. The
technician should:
A) Clean the exit site, apply a new sterile dressing, and proceed with treatment
B) Obtain blood cultures from the catheter and a peripheral vein before initiating treatment
C) Notify the nurse immediately and prepare the patient for possible catheter removal
D) Flush both lumens with 10 mL of sterile saline and proceed with treatment
- detailed answer 100% correct :- C
Rationale: The presentation of exit site erythema, purulent drainage, and fever is highly
suggestive of a catheter-related bloodstream infection (CRBSI). The technician must notify the
registered nurse immediately. Catheter-related infections are a leading cause of morbidity and
mortality in hemodialysis patients. While blood cultures may be indicated, this is a
nursing/physician decision. Continuing treatment without addressing the infection could result
in sepsis. Flushing the catheter would not treat the infection and could disseminate organisms.
Question 3
A technician is preparing to cannulate an AV fistula using the buttonhole technique. The patient
has been using this technique for the past 4 months with consistent success. Which of the
following represents the MOST critical safety consideration for this cannulation?
A) The same cannulator must perform every cannulation to maintain track integrity
B) The needle must be inserted at a 45-degree angle to prevent track damage
, 4
C) A blunt needle must be used to prevent cutting the established tissue track
D) The site must be rotated to a different location for each treatment
- detailed answer 100% correct :- C
Rationale: In the buttonhole technique, after the track is established (typically after 6-10
consecutive cannulations with sharp needles), blunt needles must be used exclusively. Blunt
needles slide through the established tissue track without cutting or damaging it. Using sharp
needles in an established track can cause damage, bleeding, and infiltration. The same
cannulator is recommended but not an absolute requirement. The 45-degree angle is
appropriate for standard cannulation but not specific to buttonhole technique. Site rotation is
characteristic of the rope ladder technique, not buttonhole.
Question 4
During cannulation of a patient's AV graft, the technician obtains a blood return that is bright
red, pulsatile, and under high pressure. The technician should:
A) Continue cannulation as the graft is functioning properly
B) Remove the needle and apply firm pressure for at least 10 minutes
C) Flush the needle with 5 mL of normal saline and proceed
D) Advance the needle an additional 1 cm to ensure proper placement
- detailed answer 100% correct :- B
Rationale: Bright red, pulsatile blood under high pressure indicates accidental arterial
cannulation rather than venous access. This is a critical error that requires immediate removal
of the needle and application of firm pressure to prevent hematoma formation and potential
arterial injury. Applying pressure for at least 10 minutes is essential to achieve hemostasis.
Continuing, flushing, or advancing the needle could result in significant hemorrhage,
pseudoaneurysm formation, or arterial damage.
Question 5
A technician is assessing a patient's AV fistula one hour after completing hemodialysis. The
technician notes a strong thrill and bruit but observes that the puncture sites are oozing blood.
The patient's most recent laboratory results show a hemoglobin of 9.8 g/dL and a platelet count
of 98,000/μL. The technician should:
A) Reapply pressure dressings and discharge the patient
B) Apply ice packs to the puncture sites
