Jacqui Booth was hanging up the washing when she suddenly collapsed in front of her two-year-old son.
The 29-year-old, who has epilepsy, began floating in and out of consciousness and remembers trying to tell son Daniel to get help.
But the youngster had already sprung into action, and raced to fetch his blue stool so he could press his mum’s emergency alarm box on the hallway wall.
Mrs Booth’s husband Colin raced into the house, and found Daniel waiting to tell him “Mummy is sick”.
Mr Booth tended to his wife, and she has now fully recovered.
Now the proud couple, who live in Garthdee, are preparing to teach Daniel some more life-saving techniques for the next time his mum has a seizure.
Mrs Booth said: “My husband and I are so proud of Daniel. I was absolutely stunned how he was able to respond so quickly. He has seen a fair few seizures, and he usually is very scared and finds them daunting.
“His communication skills are really good and he is starting to understand epilepsy so much more.”
Daniel has been provided with bedtime books from support charity Quarriers to help him understand his mum’s condition, and is reading them “every night”.
Mrs Booth has suffered from epilepsy since she was eight, and in 2016 had four seizures on a bus while Daniel was just a baby.
She praised the driver and fellow passengers for their help and for looking after her infant son.
As Daniel gets older, Mrs Booth will start to educate him more on epilepsy.
She said: “We’re also going to be making a poster together with what do when mummy is sick. Things like ‘get a pillow from my room to put under Mummy’s head.”
Naomi Stevenson, fieldworker at Quarriers has been working with Jacqui and Daniel to make epilepsy less scary for him.
She said: “We take small steps. Storybooks are a good way to identify things.
“We plan to have some practise runs with the seizure alarm system so Daniel can get familiar chatting with responders. He’s a lovely little boy.”