FREE CCHT Clinical Test 1

Question 1

If a dialysis patient is very large in both stature and weight, which of the following is most likely to improve the effectiveness of hemodialysis?

Accepted Answer

Increase dialyzer size.

Answer

For very large patients, increasing the dialyzer size (surface area) is crucial to improve the effectiveness of hemodialysis. A larger dialyzer allows for greater solute clearance and ultrafiltration, which is necessary to adequately remove waste products and excess fluid from a larger body mass. Decreasing treatment time or increasing salt restriction would not directly address the need for more efficient clearance for a larger patient.

Question 2

When creating a buttonhole tract, how many consecutive cannulations are usually required before the tract is adequately formed?

Accepted Answer

8 to 10

Answer

When establishing a buttonhole cannulation tract, it typically requires 8 to 10 consecutive cannulations using the exact same angle and depth. This consistent technique helps to create a stable, well-formed tunnel or tract, which makes future cannulations easier, less painful, and potentially reduces the risk of complications like infiltrations or infections.

Question 3

With uremia, as waste products build up in the blood, this can result in _____________.

Accepted Answer

ammonia breath

Answer

Uremia is a condition where waste products, particularly urea, build up in the blood due to kidney failure. One characteristic symptom of severe uremia is ammonia breath, also known as uremic fetor. This distinctive odor results from the breakdown of urea into ammonia in the saliva, indicating a significant accumulation of toxins in the body.

Question 4

Patients receiving hemodialysis should be advised to avoid salt substitutes because the substitutes often _________.

Accepted Answer

contain potassium

Answer

Many salt substitutes replace sodium chloride with potassium chloride to reduce sodium intake. For dialysis patients, whose kidneys cannot effectively excrete potassium, consuming these substitutes can lead to dangerously high potassium levels (hyperkalemia). Hyperkalemia can cause serious cardiac complications, making it crucial for dialysis patients to avoid salt substitutes.

Question 5

Patients with uremia develop foamy or bubbly urine because _________.

Accepted Answer

protein leaks into the urine

Answer

Foamy or bubbly urine in patients with uremia is often a sign of proteinuria, meaning protein is leaking into the urine. Damaged kidneys, unable to filter properly, allow larger protein molecules to pass through into the urine. When these proteins are present, they can create foam when the urine is agitated, indicating impaired kidney filtration.

CCHT - Certified Clinical Hemodialysis Technician Practice Test

CCHT - Certified Clinical Hemodialysis Technician Practice Test

FREE CCHT Clinical Test 1