CCHT Dialysis Procedures 2

Question 1

What is the correct sequence for initiating hemodialysis using a central venous catheter (CVC)?

Accepted Answer

Clamp lines, remove caps aseptically, aspirate and discard blood/heparin, then connect blood lines

Answer

CVC initiation requires clamping lines, aseptic cap removal, aspiration of the heparin lock and any clots, then connection of blood lines to prevent air entry and catheter-related infections.

Question 2

A patient develops muscle cramps during hemodialysis. What is the most appropriate initial intervention?

Accepted Answer

Reduce ultrafiltration rate and administer a small normal saline bolus

Answer

Muscle cramps during dialysis are usually caused by excessive fluid removal or low plasma osmolality; reducing the UF rate and giving a small saline bolus corrects fluid shifts.

Question 3

What is the recommended approach when a patient's arterial pressure alarm activates with a very negative reading (e.g., -250 mmHg)?

Accepted Answer

Reduce the blood pump speed and check for arterial access problems

Answer

Extremely negative arterial pressure indicates inadequate blood flow from the access; reducing pump speed and assessing the arterial needle or access helps identify and correct the problem.

Question 4

How should a hemodialysis treatment be terminated at the end of a session using the saline rinse-back method?

Accepted Answer

Connect saline to the arterial line, rinse blood back to the patient, then remove needles

Answer

Saline rinse-back connects saline to the arterial port, uses the blood pump to push remaining blood back to the patient, then lines are clamped and needles removed.

Question 5

What is the purpose of recirculation assessment during hemodialysis, and when would it occur?

Accepted Answer

It occurs when returned blood immediately re-enters the arterial needle, reducing treatment efficiency

Answer

Access recirculation occurs when already-dialyzed blood from the venous needle re-enters the arterial needle, reducing treatment efficacy by diluting the blood being presented to the dialyzer.

CCHT - Certified Clinical Hemodialysis Technician Practice Test

CCHT - Certified Clinical Hemodialysis Technician Practice Test

CCHT Dialysis Procedures 2