Which of the following has the most controversial morphologic identification system?
a. Progenitor cells
b. Stem cells
c. Promyelocytes
d. Bands
ANS: D
At least three systems exist for morphologic identification of band neutrophils. They vary with the shape of the nucleus. Hematology analyzers that perform automated differentials classify them (bands) with polymorphonuclear (segmented) neutrophils; therefore many laboratories now use the same criteria when identifying cells using the microscope.
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The formula dose multiplied by time represents which of the following?
A) Exposure B) Lethal dose C) Concentration D) Critical level
The written procedure for reporting of critical results or tests must include
A. the definition of stat critical results and tests B. the person who must report the critical results of the test C. the acceptable length of time between the order of the test and reporting of critical results of tests and diagnostic procedures