An air ambulance was despatched after children sustained minor injuries when their schoolbus had to make an emergency stop.
Staff at Stanley Primary School called in medics after a child complained of a headache following the incident at around 9.30am on Thursday.
The 30 Year Four children had been en route to a swimming lesson when their bus driver was forced to stop suddenly, causing some to bump their heads.
The majority of the class continued the lesson but one child sat out and teachers at the school, which is 1.5 miles away from Blackpool Victoria Hospital, later sought medical advice.
North West Ambulance Service (NWAS) sent a paramedic to the school on Wordsworth Avenue, Marton, shortly before 11am while North West Air Ambulance flew a doctor to the school at around 11.30am.
A spokesman for NWAS said: “Children were complaining of headache, neck ache and abdominal pains.
“A decision was made to utilise the air ambulance, which had a doctor on board, to come to the school so the doctor could ascertain the condition of the pupils.
“This was a clinical decision and was deemed to be in the best interests of the children.
“Taking 11 frightened and upset children to the accident and emergency department at the same time could have impacted on the service there and caused further upset to our young patients.”
After checks, none of the youngsters needed further medical treatment or to be taken to hospital.
Headteacher Craig England said: “Medics felt it was a good idea to check everyone out.”