Guide to Diagnostic Tests
Metanephrines, free (unconjugated), plasma
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Test/Range/Collection
Metanephrines , free (unconjugated), plasma
Metanephrine, free: < 0.50 nmol/L
Normetanephrine, free: < 0.9 nmol/L
Lavender, green
$$$
Collect specimen after at least 30 min rest. Place specimen tube on ice, centrifuge within 1 hour, separate plasma and freeze immediately.
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Test/Range/Collection
Metanephrines , free (unconjugated), plasma
Metanephrine, free: < 0.50 nmol/L
Normetanephrine, free: < 0.9 nmol/L
Lavender, green
$$$
Collect specimen after at least 30 min rest. Place specimen tube on ice, centrifuge within 1 hour, separate plasma and freeze immediately.
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