What information must be included on a laboratory request form? 

A. Type of organism suspected
B. Patient's phone number
C. Source of the microbiologic specimen
D. Patient's diet
E. Patient's signature

C. Source of the microbiologic specimen
The laboratory request form must include the patient's name and identification number (if appropriate), the source (collection site) of the specimen, the date and time of collection, the doctor's name, and your initials, if you collected the specimen.