Do random estimations of vitamin D3 and parathyroid hormone reflect the 24-h profile in the critically ill?
Intensive Care Medicine
Volume 38, Number 1, 177-179, DOI: 10.1007/s00134-011-2415-x
Bala Venkatesh, Ben Davidson, Katherine Robinson, Ranald Pascoe, Charles Appleton and Mark Jones
These were people expected to be in the ICU for more than 24 hours.
Author feels that a single vitamin D test is not appropriate.
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- All items in Vitamin D Test
- Vitamin D test results vary as much as 30 ng between test labs – Jan 2012
- Vitamin D tests had poor agreement – yet again – April 2011
- Panel Discussion on Vitamin D and Tests - 2011
- Vitamin D measurements of individuals vary by 3 ng within 6 days – June 2011
- Vitamin D blood testing within plus or minus 7 percent – Mar 2010 variation between labs
- Comparison of vitamin D blood tests – worse case off by 15% – Aug 2010 variation between labs
- Day to Day blood test variation less than 8 percent - Aug 2010