Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 46

Indicate whether each of the following would be considered a 1) preexamination, 2) examination, or 3) postexamination factor by placing the appropriate number in the blank:

_____ Reagent expiration date

_____ Rejecting a contaminated specimen

_____ Constructing a Levy-Jennings chart

_____ Telephoning a positive Clinitest result on a newborn

_____ Calibrating the centrifuge

_____ Collecting a timed urine specimen

Step 1 of 7

Reagent expiration date:

All reagent strips and reagents are labeled with preparation date, purchase date, opening date, received date, expiration date, and proper safety information.

This is an examination variable, which directly affects the specimen testing.