A vitamin D test is used to: 1  Determine if bone weakness, bone malformation, or abnormal metabolism of calcium (reflected by abnormal calcium, phosphorus, PTH) is occurring as a result of a deficiency or excess of vitamin D.
Report Abuse. I was actually just looking at the phlebotomist course not that long ago and it doesn't take that long at all to complete. Pretty much it's two semesters long. Each semester is roughly 3 months each. Sep-Dec and Jan-May. In reality, phlebotomists make a lower income roughly $30,000 a year. was actually just looking at the phlebotomist course not that long ago and it doesn't take that long at all to complete. Pretty much it's two semesters long. Each semester is roughly 3 months each. Sep-Dec and Jan-May.
Prior to taking classroom phlebotomy classes, in which students learn how to find a vein and draw blood, the typical program requires the student to complete a CPR training course that meets the standards of the American Heart Association.