Certification in Infection Prevention and Control (CIC) Practice Exam

A healthy immune system is least likely to be a risk factor for healthcare-associated infections because individuals with robust immune systems are generally better equipped to fight off pathogens that may be encountered in a healthcare setting. A strong immune response can help prevent infections even in the presence of potential risk factors such as recent surgery, invasive devices, or prolonged hospital stays.

Conversely, the other options represent conditions that can significantly increase the risk of infection. Recent surgeries can compromise the integrity of the skin and underlying tissues, creating opportunities for pathogens to enter the body. The presence of invasive devices, such as catheters or ventilators, provides a direct route for bacteria to enter the bloodstream or other sterile areas. Prolonged hospital stays often expose patients to various pathogens, increasing the likelihood of healthcare-associated infections. Thus, while all the other factors mentioned can heighten the risk of infection, a healthy immune system stands as a protective feature against such threats.