When a nurse obtains an unusually low blood pressure measurement for a client whose blood pressure is generally elevated, she considers the possibility of a problem with her technique. Which of the following sources of error should she consider as a possible cause of the low reading?

Choice A reason: Airborne precautions are used for diseases that are spread through the air over long distances, such as tuberculosis, measles, or chickenpox. VRE is not typically spread through the air.

Choice B reason: Droplet precautions are used for diseases that are spread through large droplets in the air, such as influenza or pertussis. VRE is not spread through droplets but through contact with contaminated surfaces or equipment.

Choice C reason: A protective environment is designed to protect immunocompromised patients from infection and is not typically used for patients with VRE. This type of precaution includes the use of HEPA filters, laminar air flow, and other strategies to maintain a sterile environment.

Choice D reason: Contact precautions are the appropriate measures for a patient with a VRE infection. VRE can be spread from one person to another through contact with contaminated surfaces or equipment or through person-to-person spread, often via contaminated hands. It is not spread through the air by coughing or sneezing. Therefore, contact precautions, including the use of gloves and gowns, are necessary when caring for patients with VRE to prevent the spread of the bacteria.

Choice A reason: Urinary catheterization is a well-known risk factor for HAIs, particularly catheter-associated urinary tract infections (CAUTIs). The use of indwelling urinary catheters can introduce bacteria into the urinary tract and is associated with a significant proportion of HAIs.

Choice B reason: While malnutrition can affect the immune system and increase the risk of infections, it is not a direct cause of HAIs. Good nutritional status is important for wound healing and infection prevention, but it does not cause HAIs by itself.

Choice C reason: Having multiple caregivers can increase the risk of transmitting infections, especially if hand hygiene and other infection control practices are not consistently followed. However, it is not considered a direct cause of HAIs like urinary catheterization is.

Choice D reason: Chlorhexidine washes are actually used as a preventive measure against HAIs, particularly in reducing the risk of surgical site infections. They are not a cause of HAIs but rather part of the solution to prevent them.