CRNI Infection Prevention and Control 5

Question 1

Which of the following is the MOST effective strategy for preventing ventilator-associated pneumonia (VAP) in a critically ill patient receiving IV therapy?

Accepted Answer

Daily sedation interruption combined with head-of-bed elevation to 30–45 degrees

Answer

VAP bundles include head-of-bed elevation (30–45°) and daily sedation interruptions; these are among the most evidence-supported non-pharmacologic VAP prevention measures.

Question 2

A patient's needleless connector appears to have blood residue inside it. What is the CORRECT action?

Accepted Answer

Replace the connector immediately with a new sterile one

Answer

Connectors with visible residue or debris inside them must be replaced immediately as they represent an infection risk that cannot be remediated by flushing or exterior scrubbing.

Question 3

During a CLABSI surveillance review, which pathogen is MOST commonly identified as the causative organism?

Accepted Answer

Coagulase-negative staphylococci

Answer

Coagulase-negative staphylococci (CoNS), particularly Staphylococcus epidermidis, are the most frequently identified pathogens in CLABSI, primarily due to biofilm formation on catheter surfaces.

Question 4

A nurse uses clean (non-sterile) gloves to remove an old central line dressing. For placing the new sterile dressing, which gloves should be used?

Accepted Answer

Sterile gloves only

Answer

Central line dressing changes require sterile gloves to maintain sterile technique and prevent introducing organisms to the catheter exit site.

Question 5

What is the recommended maximum dwell time for a peripheral IV catheter in adults to reduce infection risk, per INS guidelines?

Accepted Answer

72–96 hours or when clinically indicated

Answer

INS 2021 guidelines recommend replacing peripheral IV catheters when clinically indicated rather than on a routine schedule, though most sites are changed at 72–96 hours based on institutional policy.

CRNI Exam Practice Test

CRNI Exam Practice Test

CRNI Infection Prevention and Control 5