TWO emergency call outs to meet Indian Pacific trains made Monday a busy and unusual day for the Kalgoorlie-based Royal Flying Doctor Service (RFDS) pilot and medical team.

RFDS spokeswoman, Leslie Green, said the RFDS service received the first call from an Indian Pacific train heading west across the Nullarbor Plain towards Perth about 8.30am.

The train's crew reported a male passenger was feeling unwell. He was nauseous, sweating profusely and one of his legs was swollen.

The Kalgoorlie RFDS plane was dispatched on a 520-kilometre round trip, putting down on an airstrip near the Transcontinental Railway at Kitchener to meet the train.

The RFDS doctor thought the man may have had a reaction to a spider bite so he was taken from the train and flown back to Kalgoorlie Hospital, Ms Green said.

About mid morning RFDS Western Operations was contacted by the RFDS base at Port Augusta, SA, about a woman passenger, 51, who had suffered a severe asthma attack on an Indian Pacific train heading east from WA into SA.

Ms Green said the Port Augusta RFDS was unable to respond so the Kalgoorlie team was dispatched again, this time on an 1860-kilometre round trip.

She said the plane flew into SA and landed at an airstrip at Cook on the rail line to treat the woman who was also flown back to Kalgoolie.

“It was unusual in that the medical team was called out twice in the same day to meet the Indian Pacific,” Ms Green said.