A quantitative D-dimer immunoassay test is performed on a patient using an automated instrument. The value is 1160 ng/mL (110-240 ng/mL). Which of the following best fits this result?

In the activated partial thromboplastin time test (APTT), one of the reagents is a phospholipid. In vivo, this phospholipid is supplied by which of the following?

In order to make 25 mL of a 4% RBC suspension, how much blood is needed?

Which of the following anticoagulants can be used to provide an acceptable sample for most blood bank procedures?

A blood sample is left on a phlebotomy tray for 4 hours before it is delivered to the laboratory. Which group of tests could be performed?

A diabetic patient is seen in the ER after a car accident with heavy internal bleeding and is placed on an IV with electrolytes and glucose.The physician orders a HbA1c to assess overall diabetic control. What do you expect the results to show in this individual?

The mean for a serum uric acid control was determined to be 5.8 mg/dL, with 1 SD = 0.15 mg/dL. If the confidence limit for the instrument is set to +/-2 SD, what would be the allowable limits for this control?

Which of the following terms identifies the chemical reagent with the highest purity?

A patient has severe anemia of chronic disease. Which of the following red cell index values best correlated with the expected blood smear morphology?  

What is the total magnification produced when using a 10X ocular lens and a 40X objective lends on a light microscope?