. Over the next 16 days the glucose normal control was used for analysis. Plot the values (mg/dl) on the Levey Jennings chart that you created for this control. Use only the values BELOW. The mean is 81.1. NOTE: DO NOT calculate the mean and standard deviation for the following values, just plot them. 1. 82 mg/dl 9. 87 mg/dl 2. 75 mg/dl 10. 86 mg/dl 3. 85 mg/dl 11. 84 mg/dl 4. 87 mg/dl 12. 79 mg/dl 5. 89 mg/dl 13. 85 mg/dl 6. 92 mg/dl 14. 82 mg/dl 7. 95 mg/dl 15. 88 mg/dl 8. 81 mg/dl 16. 90 mg/dl Connect the points and identify any trends.

. You are comparing your monthly QC values on a glucose control to your manufacturer's peer group. Your laboratory mean for the control is 95.2. The manufacturer's peer group mean is 90.1 with a 1.5 standard deviation. Calculate and interpret the SDI.

The chemistry department in which you work in recently received a new lot number of a "normal" glucose control. From the time it was received, it has been analyzed 20 times to establish the confidence limits. Use the standard deviation formula and establish the confidence limits ( 2 S.D.) for the new control. Report your mean and standard deviations in WHOLE NUMBERS. 1. 71 mg/dl 11. 87 mg/dl 2. 80 mg/dl 12. 83 mg/dl 3. 83 mg/dl 13. 85 mg/dl 4. 88 mg/dl 14. 75 mg/dl 5. 79 mg/dl 15. 81 mg/dl 6. 82 mg/dl 16. 77 mg/dl 7. 81 mg/dl 17. 86 mg/dl 8. 75 mg/dl 18. 82 mg/dl 9. 87 mg/dl 19. 84 mg/dl 10. 77 mg/dl 20. 80 mg/dl ______________________________________________________________________________ MEAN = __________

SUM OF THE DIFFERENCES SQUARED ( d2): _______ 1 S.D.: _________ 2 S.D.: _________ CONFIDENCE LIMITS: ____________________ CALCULATE CV:_______________________