I just refilled my hot tub and started using Nature2 Spa mineral sanitizer...?

I am switching from a bromine system. I added the chlorine-based shock as directed by the spa retailer on instillation of the new Nature2 Spa stick. However, my wife also mistakenly put 4 tbsp of the bromine shock into the tub...do I need to wait for things to balance out, empty the tub and start again, or adjust any mineral/pH levels to bring things back into order. My test strips read high on the cholrinde levels, low on the bromine levels?