my 14 years old daughter fainted twice after visiting the doctor

My 14 years old daughter fainted twice after visiting the phisition during last 2 years.
First time it was testing for allergy
Second time after vacine injection.
Is it an allergy or more serious?
She is in swimming team and sports.

[Kevin Pho, MD]

There are variety of causes for fainting.  It can be a side effect from the needles of allergy testing or blood tests.  It can also be something more serious - like a heart condition.

To evaluate this, I would consider an EKG and possible echocardiogram to evaluate for any structural abnormalities.  If the fainting continues, you can consider a cardiology referral for further evaluation.

Followup with your personal physician is essential.

This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.

Thanks,
Kevin, M.D.