What size sieve is used to comminute powder in a Wedgwood or porcelain mortar and pestle?

The outcome of an EEG and an apnea test help doctors determine whether a person has met the clinical definition of death

a. True b. False

Which of the following would not be considered a "technical error" reason for denial of an insurance claim?

A. mathematical errors B. the service was not medically necessary C. incorrect/incomplete CPT or ICD-9 codes D. transposed numbers