Following Comparison of a New Method for Measuring Calcium with a Reference

question 9

Multiple Choice

Following comparison of a new method for measuring calcium with a reference method, the equation of the line to describe the relationship between two methods was determined to be y = 1.044x - 0.022, with r = 0.9982.Given this information, a calcium level of 5 mmol/L determined by the reference method is equal to what calcium level by the new method?

• A)4.8 mmol/L
• B)4.9 mmol/L
• C)5.0 mmol/L
• D)5.2 mmol/L

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