Which infection control practice requires follow-up when observed?

The scenario involving a client's room door being kept closed when they have rubella aligns with the need for specific infection control practices. Rubella, also known as German measles, is highly contagious and can be transmitted through respiratory droplets. Maintaining the closed door serves to limit the spread of the virus to others in the area.

Infection control protocols often require certain containment measures for patients with airborne or droplet precautions, and ensuring the door remains closed operates as a barrier to prevent transmission. Therefore, if this practice is not adhered to, it would necessitate follow-up to reinforce adherence to the infection control measures essential for preventing the spread of rubella.

In contrast, the other scenarios do not require follow-up in the same way. Standard precautions for H. pylori are generally sufficient since it is not highly contagious through casual contact. Using a disposable blood pressure cuff on a client with rotavirus is appropriate due to its focus on preventing environmental contamination. Finally, a client with influenza wearing a surgical mask while ambulating minimizes the risk of transmission to others, making this scenario less critical for follow-up compared to the implications of a door that remains open for a patient with rubella.