Resting heart rate for 12 year old

[kissmelittleass]

My dd age 12 resting heart rate according to the oximeter is between 100-125bpm would this be normal?

Count manually and check. Some of these pulse oximeters are not very accurate tbh.

It sounds a bit high to me.
Just been to see the 11 year old, who has a pulse of 84.

@DancesWithDaffodils That makes me think dd heart rate is a bit high if you're dd similar age is lower.
She has a goitre since she was two that's always dismissed and has only ever had two blood tests to check thyroid at my insistence the last one being 3-4 years ago and I'm wondering if this could affect her heart rate? Think I'll ring doctors in morning feeling anxious now.