Certified Registered Nurse Infusion (CRNI) Practice Exam

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Study for the Certified Registered Nurse Infusion (CRNI) Exam with our quiz. Access flashcards and multiple-choice questions, each with detailed explanations and hints. Prepare effectively for your certification!

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Which of the following is NOT a common source of catheter-related infections?

Staphylococcus
Escherichia coli
Streptococcus
Clostridium

The correct answer is: Clostridium

Clostridium is not typically recognized as a common source of catheter-related infections. While Clostridium species can cause various infections, including those associated with the gastrointestinal tract, they are less frequently implicated specifically in infections related to indwelling catheters. On the other hand, Staphylococcus, especially Staphylococcus aureus, and coagulase-negative Staphylococcus, are well-known pathogens associated with catheter-related infections due to their ability to form biofilms and adhere to the surfaces of catheters. Escherichia coli is also a significant pathogen that can be associated with urinary catheters, contributing to urinary tract infections, which are common among patients with indwelling catheters. Streptococcus can be identified in some infections but is not as commonly associated with catheter-related infections compared to the others mentioned. Understanding these pathogens helps healthcare professionals focus on prevention strategies for catheter-related infections by emphasizing the most common culprits during patient care.