But that kit was previously used on patient which i touched, is it still safe ??
You did not have a risk but touching a test and then touching you skin where the needle was use. No risk at all, none!
I know it cant go through the skin, but when the sample was collected, they pricked the needle, i may have touched the place where they pricked my skin, is it still no risk involved ?
No this is not a risk, once exposed to air the virus becomes inactive, it will not go through your skin or invisably crawl...
I know they are not re-used but i touched the one that might have been used, and the virus may have been transfered to my hand and then eventually to the point where the needle was pricked to take the sample. could it be transferred this way ??
No you did not have a risk from the test kit. They are not re-used either.
You do not have HIV