What can cause a delay in capillary refill?

What does Character 7 specify in the code for a coronary artery bypass?

A) number of coronary artery sites B) vessel bypassed from C) number of coronary artery vessels D) site bypassed to

Which of the following would be unacceptable when writing a prescription?

A) to use the abbreviation "mcg" B) to write out "units" C) to use a trailing 0 (5.0 mg) D) to use a leading 0 (0.125 mg)