How many hours prior to tinting should you do the patch test
48 hours
What 2 reactions could occur during a skin test
Positive and negative
What 3 positive skin test signs are there
Redness
Itching/swelling
Rash
What reaction occurs in a negative skin test
No sign of reaction
What 3 places can a skin test be performed
Inner wrist
Behind the ear
Inside elbow
How long should u keep the patch test on
Minimum of 24 hours