Q&A column
July 2022
Q. When a patient has a hematocrit level of ≥55 percent and a normal PT and APTT, do you still correct sodium citrate and ask for a redraw? Is it crucial to ask for a redraw when the emergency department orders a stat PT and APTT? Read answer.
Q. Obtaining an accurate blood glucose level is hindered by continued glycolysis in the evacuated tube post collection, even if a gray top tube is used. This leads to falsely low blood glucose levels. What can laboratories do to limit ex vivo glycolysis? Read answer.