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.
In the end though, the amount of time it takes to become a phlebotomist is relatively short compared to many other health care jobs that offer similar pay and opportunity for advancement. The Phlebotomy Certification Exam - What To ExpectFind out what to expect from the phlebotomy certification exam Read More â.