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A nurse is urging Australians to update the medical information on their phone after an incident occurred at a shopping centre.

Lauren, 22, said the medical ID 'might just save your life' because it provides all the details required in an emergency - such as name, age, allergies, medication, blood type, emergency contacts and more. 

Lauren said she was waiting for a Boost Juice on Tuesday when a woman at the shopping centre collapsed and hit her head. 

'I immediately went over to see if they needed any help.Having a duty of care and being comfortable doing basic life support, I was like alright I need to put my big girl pants on and step in,' she said in a video. 

'She was not in a good way at all.'

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Sydney nurse Lauren (pictured) is urging everyone to update the medical ID on their phones and says it 'might just save your life' in an emergency 

The medical ID provides all the details required in an emergency - such as name, age, allergies, medication, blood type, emergency contacts and more

Lauren had others call an ambulance and had management get a defibrillator for CPR just in case. 

'I was quite nervous that we may have needed to do CPR.She was very close to being unresponsive,' she said.

At the time she had no idea why the woman passed out and considered a number of possibilities.  

Lauren realised the woman owned an iPhone so she held the lock button and volume button at the same time then swiped to view her medical ID. 

'She didn't have it updated but she did have her name, her birthday, Slot Depo Pulsa her height and her weight,' she said. 

Lauren shared the information in a TikTok video after a woman collapsed at a shopping centre on Tuesday hitting her head, so she rushed over to help and checked her medical ID

'The fact I had her name meant I was able to communicate better with her, and she was able to communicate by squeezing my hand a little bit better knowing I was talking to her.'

Lauren later discovered the woman had a cardiac condition and was the reason why she collapsed, which would've been 'very helpful' to know prior. 

She then urged everyone to update their medical ID.