CCHT Certified Clinical Hemodialysis Technician Exam Question
Bank (Latest 2026/2027 Edition) – 100% Correct Questions,
Answers & Detailed Rationales
Total Questions: 50
Time Allowed: 60 Minutes (Actual Exam)
Instructions: Select the BEST answer for each question based on NNCC CCHT exam
standards and current hemodialysis practice.
SECTION 1: CLINICAL AREA (48-52% of Exam)
Questions 1–24
Question 1
A 68-year-old hemodialysis patient arrives for treatment with a pre-dialysis weight of
72.5 kg. His prescribed dry weight is 70.0 kg. The nurse has ordered a 4-hour treatment
with a sodium modeling profile. What is the patient's estimated fluid overload?
A. 1.5 kg
B. 2.5 kg
C. 3.5 kg
D. 4.5 kg
Correct Answer: B
Rationale: Fluid overload is calculated by subtracting the prescribed dry weight from the
current pre-dialysis weight (72.5 kg – 70.0 kg = 2.5 kg). This value determines the
,ultrafiltration goal. Option A represents an arbitrary underestimate. Option C and D
represent miscalculations that do not reflect the standard weight-based fluid
assessment.
Question 2
During hemodialysis, a patient complains of severe muscle cramps in the legs and
becomes restless. Blood pressure has dropped from 158/92 mmHg to 98/60 mmHg.
Which intervention should the technician perform FIRST?
A. Increase the ultrafiltration rate to complete the fluid removal goal
B. Administer a bolus of normal saline and reassess blood pressure
C. Stop dialysis immediately and return all blood
D. Administer hypertonic glucose intravenously
Correct Answer: B
Rationale: Intradialytic hypotension with muscle cramps indicates excessive
ultrafiltration relative to plasma refill rate; the first response is to bolus normal saline
(typically 100–250 mL) to expand intravascular volume and reassess hemodynamics.
Option A would worsen hypotension and cardiovascular collapse. Option C is reserved
for severe, unresponsive instability. Option D may be used for isolated cramps but
volume expansion takes priority when hypotension is present.
Question 3
A patient with an arteriovenous (AV) fistula in the left forearm presents for dialysis.
Which finding requires immediate notification of the nurse BEFORE initiating
cannulation?
A. A palpable thrill and audible bruit over the fistula
B. A cool, pale hand with diminished pulses compared to the contralateral arm
C. A firm, pulsatile vessel with a palpable thrill
D. A visible vein with mild tortuosity along the forearm
,Correct Answer: B
Rationale: A cool, pale hand with diminished pulses indicates steal syndrome or arterial
insufficiency, which is a vascular emergency requiring immediate nurse and physician
notification before cannulation to prevent tissue necrosis. Option A describes normal,
healthy fistula findings. Option C describes a well-developed, mature access. Option D is
a common anatomical variant in mature fistulas and does not contraindicate
cannulation.
Question 4
A patient on hemodialysis develops headache, nausea, vomiting, and confusion in the
last 30 minutes of a high-efficiency first treatment. Which complication is most likely?
A. Air embolism
B. Dialysis disequilibrium syndrome
C. Hemolytic reaction
D. Septicemia
Correct Answer: B
Rationale: Dialysis disequilibrium syndrome occurs when rapid solute removal creates
an osmotic gradient between brain and blood, causing cerebral edema; it is more
common during first treatments, high-efficiency dialysis, or aggressive ultrafiltration in
severely uremic patients. Option A would present with sudden dyspnea, chest pain, and
cardiovascular collapse. Option C would present with back pain, port wine-colored
plasma, and fever. Option D would present with fever, chills, and hypotension typically
earlier in treatment.
Question 5
, A patient's serum potassium is 6.8 mEq/L pre-dialysis. The physician has ordered a
4-hour treatment. Which dialysate potassium concentration is MOST appropriate for
this patient?
A. 1.0 mEq/L
B. 2.0 mEq/L
C. 3.0 mEq/L
D. 4.0 mEq/L
Correct Answer: B
Rationale: For moderate hyperkalemia (6.0–7.0 mEq/L), a dialysate potassium of 2.0
mEq/L provides a safe gradient for potassium removal without causing rapid shifts that
precipitate cardiac arrhythmias. Option A (1.0 mEq/L) creates too steep a gradient and
risks cardiac instability, especially in patients not acutely monitored. Option C and D
provide insufficient gradients for effective potassium removal in significantly
hyperkalemic patients.
Question 6
During dialysis, the venous pressure alarm sounds. The venous pressure has risen from
120 mmHg to 280 mmHg over 15 minutes. The bloodlines appear kink-free and the
needle position is unchanged. Which is the MOST likely cause?
A. Needle dislodgement from the access
B. Venous stenosis or clot formation in the venous drip chamber or line
C. Arterial line separation from the needle
D. Excessive heparin administration
Correct Answer: B
Rationale: A gradual rise in venous pressure without visible line obstruction indicates
increased resistance downstream from the venous drip chamber, most commonly from
Bank (Latest 2026/2027 Edition) – 100% Correct Questions,
Answers & Detailed Rationales
Total Questions: 50
Time Allowed: 60 Minutes (Actual Exam)
Instructions: Select the BEST answer for each question based on NNCC CCHT exam
standards and current hemodialysis practice.
SECTION 1: CLINICAL AREA (48-52% of Exam)
Questions 1–24
Question 1
A 68-year-old hemodialysis patient arrives for treatment with a pre-dialysis weight of
72.5 kg. His prescribed dry weight is 70.0 kg. The nurse has ordered a 4-hour treatment
with a sodium modeling profile. What is the patient's estimated fluid overload?
A. 1.5 kg
B. 2.5 kg
C. 3.5 kg
D. 4.5 kg
Correct Answer: B
Rationale: Fluid overload is calculated by subtracting the prescribed dry weight from the
current pre-dialysis weight (72.5 kg – 70.0 kg = 2.5 kg). This value determines the
,ultrafiltration goal. Option A represents an arbitrary underestimate. Option C and D
represent miscalculations that do not reflect the standard weight-based fluid
assessment.
Question 2
During hemodialysis, a patient complains of severe muscle cramps in the legs and
becomes restless. Blood pressure has dropped from 158/92 mmHg to 98/60 mmHg.
Which intervention should the technician perform FIRST?
A. Increase the ultrafiltration rate to complete the fluid removal goal
B. Administer a bolus of normal saline and reassess blood pressure
C. Stop dialysis immediately and return all blood
D. Administer hypertonic glucose intravenously
Correct Answer: B
Rationale: Intradialytic hypotension with muscle cramps indicates excessive
ultrafiltration relative to plasma refill rate; the first response is to bolus normal saline
(typically 100–250 mL) to expand intravascular volume and reassess hemodynamics.
Option A would worsen hypotension and cardiovascular collapse. Option C is reserved
for severe, unresponsive instability. Option D may be used for isolated cramps but
volume expansion takes priority when hypotension is present.
Question 3
A patient with an arteriovenous (AV) fistula in the left forearm presents for dialysis.
Which finding requires immediate notification of the nurse BEFORE initiating
cannulation?
A. A palpable thrill and audible bruit over the fistula
B. A cool, pale hand with diminished pulses compared to the contralateral arm
C. A firm, pulsatile vessel with a palpable thrill
D. A visible vein with mild tortuosity along the forearm
,Correct Answer: B
Rationale: A cool, pale hand with diminished pulses indicates steal syndrome or arterial
insufficiency, which is a vascular emergency requiring immediate nurse and physician
notification before cannulation to prevent tissue necrosis. Option A describes normal,
healthy fistula findings. Option C describes a well-developed, mature access. Option D is
a common anatomical variant in mature fistulas and does not contraindicate
cannulation.
Question 4
A patient on hemodialysis develops headache, nausea, vomiting, and confusion in the
last 30 minutes of a high-efficiency first treatment. Which complication is most likely?
A. Air embolism
B. Dialysis disequilibrium syndrome
C. Hemolytic reaction
D. Septicemia
Correct Answer: B
Rationale: Dialysis disequilibrium syndrome occurs when rapid solute removal creates
an osmotic gradient between brain and blood, causing cerebral edema; it is more
common during first treatments, high-efficiency dialysis, or aggressive ultrafiltration in
severely uremic patients. Option A would present with sudden dyspnea, chest pain, and
cardiovascular collapse. Option C would present with back pain, port wine-colored
plasma, and fever. Option D would present with fever, chills, and hypotension typically
earlier in treatment.
Question 5
, A patient's serum potassium is 6.8 mEq/L pre-dialysis. The physician has ordered a
4-hour treatment. Which dialysate potassium concentration is MOST appropriate for
this patient?
A. 1.0 mEq/L
B. 2.0 mEq/L
C. 3.0 mEq/L
D. 4.0 mEq/L
Correct Answer: B
Rationale: For moderate hyperkalemia (6.0–7.0 mEq/L), a dialysate potassium of 2.0
mEq/L provides a safe gradient for potassium removal without causing rapid shifts that
precipitate cardiac arrhythmias. Option A (1.0 mEq/L) creates too steep a gradient and
risks cardiac instability, especially in patients not acutely monitored. Option C and D
provide insufficient gradients for effective potassium removal in significantly
hyperkalemic patients.
Question 6
During dialysis, the venous pressure alarm sounds. The venous pressure has risen from
120 mmHg to 280 mmHg over 15 minutes. The bloodlines appear kink-free and the
needle position is unchanged. Which is the MOST likely cause?
A. Needle dislodgement from the access
B. Venous stenosis or clot formation in the venous drip chamber or line
C. Arterial line separation from the needle
D. Excessive heparin administration
Correct Answer: B
Rationale: A gradual rise in venous pressure without visible line obstruction indicates
increased resistance downstream from the venous drip chamber, most commonly from
