A set of working standards covering a range of concentrations demonstrates a linear relationship with absorbance values from 0.050 to 0.700. A sample absorbance is 0.799. Can this reading be used?

What defines the slope in a graph?

Interpret the result. What is that concentration of the sample?

Control limits for a test are defined by + 2s. If the mean is 80.0 and the standard deviation is 2.5, what is the acceptable range (limits of acceptable error)?

A serial dilution was prepared with tube 1 having a dilution of 1:2. What will be the dilution in the 6th tube? Show work to receive full credit.

How much saline is required to make 50 mL of 5% serum from 25% serum in saline?

Glucose sample reports a value above linearity (out of reportable range for the instrument) of >600mg/dL. Following a dilution, a value of 456 mg/dL was obtained. What is the calculated glucose value if a 1:3 dilution was used?

Homogenous mixture of two or more substances

Make 135 mL of 6% serum in saline.

How many mL of serum will be needed to make 250 ml of a 1:3 dilution?