CRNI CRNI Infusion Pump Technology and Safety Practice Test 5

Question 1

A patient receiving TPN via a multi-channel pump has one channel alarming 'downstream occlusion.' What is the PRIORITY nursing action?

Accepted Answer

Assess the IV site and catheter for kinking, clot, or positional obstruction

Answer

A downstream occlusion alarm requires immediate assessment of the catheter and IV site to identify and resolve the source of obstruction before resuming infusion.

Question 2

What is the primary purpose of 'drug library guardrails' in a smart infusion pump?

Accepted Answer

To enforce pre-set dose limits that reduce programming errors and ADEs

Answer

Drug library guardrails establish hard and soft dose limits that intercept programming errors at the point of care, directly reducing adverse drug events.

Question 3

When caring for a pediatric patient, a nurse must consider which pump feature most critical to preventing fluid overload?

Accepted Answer

Small-volume delivery accuracy with micro-rate capability

Answer

Pediatric patients require very small, precise volumes; pumps with micro-rate accuracy (e.g., 0.1 mL/hr) are essential to prevent fluid overload in small bodies.

Question 4

An infusion pump's DERS (dose error reduction software) is set for heparin. The nurse programs 1,200 units/hr but the limit is 1,000 units/hr. What happens?

Accepted Answer

A hard limit alert fires and the pump will not run until the dose is corrected

Answer

Exceeding a hard limit triggers an alert that prevents infusion from starting; the nurse must reprogram a value within the allowed range before the pump will run.

Question 5

Which infusion pump type is BEST suited for delivering highly viscous medications such as lipid emulsions?

Accepted Answer

Peristaltic volumetric pump

Answer

Peristaltic volumetric pumps generate enough mechanical force to reliably deliver viscous fluids like lipid emulsions through standard IV tubing.

CRNI Exam Practice Test

CRNI Exam Practice Test

CRNI CRNI Infusion Pump Technology and Safety Practice Test 5