VA-BC Infusion Therapy & Solutions 2

Question 1

Which filter size is recommended when administering 3-in-1 total nutrient admixtures (TNA) that contain lipid emulsions?

Accepted Answer

1.2 micron filter

Answer

A 1.2-micron filter is required for lipid-containing admixtures because a 0.2-micron filter would trap fat particles and prevent proper infusion.

Question 2

Why is Lactated Ringer's solution contraindicated for co-administration with blood products?

Accepted Answer

Its calcium content can promote clot formation in the tubing

Answer

Lactated Ringer's contains 3 mEq/L of calcium, which can bind to the citrate anticoagulant in blood products and promote clot formation in the IV tubing.

Question 3

What is the maximum recommended peripheral infusion rate for potassium chloride (KCl) to prevent cardiac toxicity?

Accepted Answer

10 mEq/hr

Answer

The maximum safe peripheral infusion rate for KCl is 10 mEq/hr; rates above this via peripheral access risk serious cardiac dysrhythmias and vein damage.

Question 4

Which IV solution is contraindicated in patients with increased intracranial pressure (ICP) because it can worsen cerebral edema?

Accepted Answer

D5W

Answer

D5W is effectively a hypotonic solution once dextrose is metabolized, and free water can cross the blood-brain barrier and increase cerebral edema.

Question 5

What is the primary purpose of using a 0.2-micron filter when infusing TPN without lipids (2-in-1 formulation)?

Accepted Answer

To remove bacteria, fungi, and particulate matter

Answer

A 0.2-micron filter removes bacteria, fungi, and particulate contaminants from non-lipid TPN, reducing the risk of catheter-related bloodstream infections.

(VA-BC) Vascular Access Nurse Certification Practice Test

(VA-BC) Vascular Access Nurse Certification Practice Test

VA-BC Infusion Therapy & Solutions 2