MODULE 4 WORKSHEET

1. In a power failure, all of the machine lights will go out and a steady alarm will sound. To protect patients, a power failure will also: (3 answers).

• 
  
• 
  
• 
  

You will not be able to shut off this alarm with the mute button.

2. Another name for Convection is: (2 words).

----------- ------------ .

3. In Hemodialysis, diffusion removes the smallest - low molecular weight - solutes. The diffusion rate depends on factors that include:(6 answers)

• 
  
• 
  
• 
  
• 
  
• 
  
• 
  

4. The HD machine is one part of a larger system of devices, called a ------------------ ---------------------. (2 words).

5. For safety, most HD machines have two or more conductivity alarms. Each has its own sensors and circuits to monitor the dialysate as it is made. One sensor tests the -------------.

of the first concentrate, A second one test the final ------------------.

6. Arterial- Most often color coded ------------

Venous- Most often color coded ------------

7. During HD, blood flows through tubing ("lines") from an arterial needle in the patient's access to the ----------------------.

8. The inner diameter of the blood tubing is so small, so only about 100-250 mL of blood is outside the patients-------------- at a time.

9. When the air detector is on, a transmitter sends a sound wave across a drip chamber or bloodline to a receiver on the other side is called -------------------.

10. ----------------- is done to measure the volume of a patients blood during a treatment.

Lesson Summary

1. To protect patients during a power failure, a hemodialysis machine will:

• Cause all machine lights to go out
• Trigger a steady alarm
• Not allow users to shut off the alarm with the mute button

2. Another name for Convection is:

• Forced convection

3. In Hemodialysis, diffusion removes the smallest - low molecular weight - solutes. The diffusion rate depends on factors that include:

• Surface area of the filter
• Membrane permeability
• Concentration gradient
• Temperature
• Time
• Diffusion coefficient

4. The HD machine is one part of a larger system of devices, called a:

• Dialysis delivery system

5. For safety, most HD machines have two or more conductivity alarms. Each has its own sensors and circuits to monitor the dialysate as it is made. One sensor tests the:

• Conductivity of the first concentrate

A second one tests the final:

• Conductivity

6. Arterial- Most often color coded:

• Red

Venous- Most often color coded:

• Blue

7. During HD, blood flows through tubing ("lines") from an arterial needle in the patient's access to the:

• HD machine

8. The inner diameter of the blood tubing is so small, so only about 100-250 mL of blood is outside the patient's vascular system at a time.

9. When the air detector is on, a transmitter sends a sound wave across a drip chamber or bloodline to a receiver on the other side is called:

• Air embolism detector

10. ---------- is done to measure the volume of a patient's blood during a treatment.