1a. A manual creatinine lab was performed in an MLS student lab. The Absorbance of the 5.0 mg/dL creatinine standard was 0.512. The QC 2’s sample absorbance was 0.492. What is the concentration in mg/dL of QC 2?

1b. If the acceptable range of the QC2 material in question 5 has a mean of 4.4mg/dL and a standard deviation of 0.1 mg/dL is the run of QC listed in that question acceptable? Explain your answer.