Metanephrines, free (unconjugated), plasma
Medicine Central™ is a quick-consult mobile and web resource that includes diagnosis, treatment, medications, and follow-up information on over 700 diseases and disorders, providing fast answers—anytime, anywhere. Explore these free sample topics:
-- The first section of this topic is shown below --
Metanephrines , free (unconjugated), plasma
Metanephrine, free: < 0.50 nmol/L
Normetanephrine, free: < 0.9 nmol/L
Collect specimen after at least 30 min rest. Place specimen tube on ice, centrifuge within 1 hour, separate plasma and freeze immediately.