What do you do if a blood pressure cuff needle is at 300 mm HG when deflated?

Question

Do I need to buy a new one or can I fix it. It still inflates and deflates normally. Just goes down to 300 instead of stopping at 0.

Answer 1

The gauge is useless.  It has to be calibrated properly to be of any use at all.  Get a new one.

Answer 2

I would buy a new one but that is me personally.  I am not good at fixing those.  I would consider it unreliable.