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Life of 73-year-old US woman saved by her fitness tracker! - Read how!

She noticed that her device was recording a rise in her usual resting heart rate of 68-70 beats per minute by five points a day. Then one day her heart rate spiked to 140 beats per minute.

Life of 73-year-old US woman saved by her fitness tracker! - Read how! (Image for representational purposes only)

New Delhi: Fitness devices and/or fitness trackers are supposed to do what their name says – keep you fit, alert you when you're becoming sluggish and remind you of your fitness routine.

However, in an unusual incident, a 73-year-old woman in the US was saved by her fitness device after it alerted her of a spike in her heart rate, allowing her to signal for help in time.

The reason behind the surge in her heart rate turned out to be large blood clots in her lungs.

Patricia Lauder from the US bought a wearabale fitness tracker hoping to improve her health and lose weight.

"I wasn't feeling well for a few weeks, and thought I might be battling a bad cold or walking pneumonia that I just couldn't kick," said Lauder.

However, all her tests came back negative for pneumonia or any other health issues.

She started to experience shortness of breath and fatigue, while walking even very short distances in her own home.

She noticed that her device was recording a rise in her usual resting heart rate of 68-70 beats per minute by five points a day. Then one day her heart rate spiked to 140 beats per minute.

Lauder called the ambulance, and was taken to the University of Connecticut's John Dempsey Hospital in the US. A CT Scan showed that she was suffering from two large blood clots in her lung arteries.

These clots, known as pulmonary embolisms, were causing her lungs and heart to be stressed and over-pressurised.

Her lung artery pressure spiked to 65, when 25 is normal, while her heart was over-working and had become enlarged.

The mortality rate of a pulmonary embolism is over 30 per cent when it is massive, said JuYong Lee, who treated Lauder.

These risky lung blood clots can over-pressurise the heart, leading the body's blood pressure and oxygen level to drop significantly.

The biggest risk factor for developing a pulmonary embolism is deep vein thrombosis, when a blood clot forms in a vein, most often in the leg, and can travel up to the lungs.

(With PTI inputs)

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