Which of the Following Statements Is True

Which of the following statements is true?

A) Reagent strips do not require extra care in storage or protection from strong chemicals.
B) Urine controls are necessary with manual, but not automated, urinalysis.
C) Urine controls are known-value specimens that test the accuracy of urine procedures, reagents, and equipment.
D) Urine controls come in only one level-abnormal.