Final answer:
The nurse should question the activity of applying warm compresses to bruises in a client with thrombocytopenia, as it may exacerbate bleeding due to the condition’s impact on the ability of blood to clot properly.
Step-by-step explanation:
The nurse would question the activity of application of warm compresses to bruises for a client with thrombocytopenia. Thrombocytopenia is a condition characterized by a low platelet count, which can result in the blood's inability to clot properly, leading to excessive bleeding even from minor wounds. It is essential to avoid actions that could exacerbate bruising or bleeding. A warm compress may increase blood flow to the area, potentially leading to more bleeding. Therefore, Activity 1 could pose a risk to the patient, whereas the other activities listed, such as using a soft-bristled brush for dental hygiene, taking acetaminophen for pain, or using stool softeners for constipation, do not directly affect the risk of bleeding or could be safely recommended for individuals with this condition.