Certified Hemodialysis Bio-Medical Technician (CHBT)

Question 1

A hemodialysis machine alarms with a 'blood leak' alert. What is the immediate action?

Stop the blood pump, clamp the blood lines, and do not return blood to the patient until the dialyzer is inspected Reduce the blood flow rate and observe to see if the alarm clears Reset the alarm and complete the treatment since false alarms are common Increase transmembrane pressure to force the leak to seal itself

Correct Answer:

Stop the blood pump, clamp the blood lines, and do not return blood to the patient until the dialyzer is inspected

Question 2

What does a 'conductivity alarm' on a hemodialysis machine indicate?

The dialysate electrolyte concentration is outside safe limits, posing risk of fatal electrolyte imbalance The blood pump speed has exceeded the prescribed rate The venous pressure is too high, indicating a possible access occlusion The heparin infusion pump has run out of medication

Correct Answer:

The dialysate electrolyte concentration is outside safe limits, posing risk of fatal electrolyte imbalance

Question 3

During a hemodialysis session, the air detector alarm activates. What is the correct response?

Stop the blood pump immediately and clamp the venous line to prevent air from entering the patient Slow the blood pump to 50 mL/min and watch for visible air bubbles Reset the alarm and document it as a false alarm Prime the venous drip chamber with additional heparinized saline while treatment continues

Correct Answer:

Stop the blood pump immediately and clamp the venous line to prevent air from entering the patient

Question 4

What action should a dialysis technician take if a patient's access needle is accidentally dislodged during treatment?

Apply immediate firm pressure to the puncture site, stop the blood pump, and call for emergency assistance Quickly reinsert the needle and resume treatment to minimize blood loss Apply a tourniquet above the access site and continue dialysis through the remaining needle Elevate the affected limb and continue treating with the remaining connected needle

Correct Answer:

Apply immediate firm pressure to the puncture site, stop the blood pump, and call for emergency assistance

Question 5

A hemodialysis machine displays a 'transmembrane pressure (TMP) high' alarm. What is the most likely cause?

Clotting within the dialyzer fibers, increasing resistance to ultrafiltration The dialysate temperature is set too high, expanding fluid volume The patient's blood pressure has dropped below 90 mmHg systolic The carbon tank has exhausted its chloramine removal capacity

Correct Answer:

Clotting within the dialyzer fibers, increasing resistance to ultrafiltration

Exam overview

About this Exam

Prepare with the Certified Hemodialysis Bio-Medical Technician (CHBT) practice quiz. This question bank includes 150 questions covering hemodialysis, dialysis, patient, patients, and machine. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Certified Hemodialysis Bio-Medical Technician (CHBT)

This practice set contains 150 questions from the matching question bank and focuses on hemodialysis, dialysis, patient, patients, and machine. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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About this Exam

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Certified Hemodialysis Bio-Medical Technician (CHBT)

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