CRNI Infection Control 4

Question 1

A CRNI is preparing to change a central venous catheter (CVC) dressing. Which disinfectant is preferred for skin antisepsis at the insertion site?

Accepted Answer

Chlorhexidine gluconate >0.5% with alcohol

Answer

Chlorhexidine gluconate >0.5% in alcohol is the preferred antiseptic for CVC site care per INS and CDC guidelines due to its superior residual activity.

Question 2

A patient on immunosuppressive therapy develops a fever of 38.6°C within 30 minutes of starting an IV infusion. The nurse suspects infusion-related sepsis. What is the FIRST action?

Accepted Answer

Discontinue the infusion and notify the provider

Answer

The infusion must be stopped immediately to halt potential bacteremic exposure, and the provider notified; the suspect infusate and tubing should be saved for culture.

Question 3

When inserting a peripherally inserted central catheter (PICC), which of the following practices is required for maximal barrier precautions?

Accepted Answer

Sterile gloves, gown, mask, cap, and large sterile drape

Answer

Maximal sterile barrier precautions require cap, mask, sterile gown, sterile gloves, and a large sterile drape to cover the entire patient during insertion.

Question 4

A nurse notes that the antimicrobial-impregnated central line has been in place for 7 days. According to evidence-based practice, what should guide the decision to replace the catheter?

Accepted Answer

Clinical indication such as signs of infection or malfunction, not scheduled replacement

Answer

Evidence-based guidelines recommend against routine scheduled replacement; catheters should be changed only when clinically indicated to reduce unnecessary risk.

Question 5

Which of the following organisms is most commonly associated with catheter-related bloodstream infections (CRBSIs) linked to hub contamination?

Accepted Answer

Coagulase-negative Staphylococci

Answer

Coagulase-negative staphylococci, particularly S. epidermidis, are the most common CRBSI pathogens due to their biofilm formation on catheter surfaces and hubs.

CRNI Exam Practice Test

CRNI Exam Practice Test

CRNI Infection Control 4