School nurses, in collaboration with primary care providers (PCPs), can work to better manage asthma by using the Asthma Action Plan (AAP) with peak flow monitoring. The aim of this pilot study was to determine the effectiveness of an intervention to increase the number of AAPs in schools for students with asthma by having school nurses provide the students' peak flow measurements to their PCPs with a request for an AAP. The study found a significant increase in AAPs when school nurses provided PCPs with accurate peak flow data and requested an AAP from the PCP than when school nurses requested an AAP via the students' parents and did not provide peak flow data to the PCP. This study provided data on the importance of collaboration with PCPs in order to affect better care for children with asthma. (Contains 3 figures.)