Blood test results show lymphocytes at 46 when normal is 20-40. everything else (white and red blood cell count normal). should i be worried?

Lymphocytes: There is always some variation in counts , what is "normal" is what falls within the 95% confidence interval of average. So some "normals" will fall above or below the range. Would not worry if no symptoms, no atypical lymphocytes, may consider repeating in 2-3 months to get the pattern. Follow up and discuss with your doctor as well.