My blood test showed crp as 0.2 mmole/l. is this low, normal or high? would fasting without food or water for about 13 hrs prior affect the results?

?right units?: I am unfamiliar with CRP being expressed in mmol/l - this is usually expressed in mg/dl or mg/l. If the number you wrote is right, a CRP of 0.2 is normal range. If you don't typically eat after dinner and then sleep 8 hours, you fast for almost 13 hours a day are are just fine - so no, this not likely to change the result much if at all.

C-reactive protein: Always get reference range w/your lab result so that you can tell whether you're low, normal or high. Reference ranges depend upon lab equipment used as well as units. CRP is usually measured in mg/l, even in bc (http://www.Healthlinkbc.Ca/kb/content/medicaltest/tu6309.Html). Typically, results.