Final answer:
When conducting a short-term radon measurement, whole house fans may be operated as long as exterior doors and windows are closed.
Step-by-step explanation:
When conducting a short-term radon measurement, it is generally acceptable to operate whole-house fans as long as the exterior doors and windows are closed. Whole-house fans can help with ventilation and air exchange, which can be beneficial in reducing radon levels in the home. However, it is important to properly seal the home and keep doors and windows closed during the measurement to ensure accurate results.