What crucial question should a home health nurse ask to assess for a latex allergy?

The selection of the question regarding unusual symptoms after blowing up balloons is particularly astute for assessing a latex allergy. Latex allergies are commonly associated with the use of latex products, and balloons are a frequent source of exposure. Individuals with a latex allergy may experience immediate or delayed allergic reactions when they come into contact with latex, including symptoms like skin rashes, hives, or respiratory issues after exposure. This question directly pertains to a known trigger and can elicit specific information about any symptoms that may indicate a sensitivity or allergic reaction to latex.

In contrast, the other options do not specifically relate to latex allergy. Inquiring about allergic reactions to shellfish or iodine assesses for different types of allergies and would not provide pertinent information regarding latex exposure. Asking about handwashing habits might reveal information about hygiene practices but wouldn't indicate a latex allergy. Similarly, questions about childhood infections do not correlate with the risk factors or symptoms related to latex sensitivity. Therefore, the question posed about blowing up balloons is particularly relevant for identifying potential latex allergies based on common sources of exposure.