There are no special preparations for either a standard CRP test or an hs-CRP test. However, if your blood is being drawn for other tests, as well, you may need to fast or follow other instructions. Ask your doctor if you're having other tests at the same time.
Some medications can affect your CRP level. Tell your doctor about any medications you take.
Dec. 12, 2014
- Greenland P, et al. ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2010;122:e584.
- Morrow DA. C-reactive protein in cardiovascular disease. http://www.uptodate.com/home. Accessed Oct. 19, 2014.
- Morrow DA. Screening for cardiovascular disease with C-reactive protein. http://www.uptodate.com/home. Accessed Oct. 19, 2014.
- McKean SC, et al. Principles and Practice of Hospital Medicine. New York, N.Y: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=749. Accessed Oct. 19, 2014.
- WHO guidelines on drawing blood: Best practices in phlebotomy. World Health Organization. http://whqlibdoc.who.int/publications/2010/9789241599221_eng.pdf. Accessed Oct. 19, 2014.