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Blood Sciences

Blood Test Information

Metadrenaline (urine)
(a.k.a Metanephrine)
24 Hour Urine (acid Preservative)(Phone (82)4712 to order)

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Test Code: MAD

Special instructions
Sample must be collected into a bottle already containing acid.

Adult reference ranges:
Metadrenaline <2.21
Nor-Metadrenaline <3.81
3-Methoxytyramine <2.81
Metadrenaline <1.81
Nor-Metadrenaline <3.01
3-Methoxytyramine <2.81

Sent away to Freeman Hospital, Newcastle

Reference range
Paediatric ranges available on request.


Turnaround Time
21 days

Department: Biochemistry

Clinical Application
Information obtained from referral laboratory: Substances which can interfere both in vivo and in vitro include: Tricyclic antidepressants, Phenoxybenzamine, Calcium channel blockers, Stimulants (e.g. caffeine, nicotine), Levodopa, Paracetamol. Patients should avoid caffeine for 24hrs and during collection. In addition the following drugs should be avoided for one week prior to the collection if clinically feasible: Phenothiazines (used to treat mental or emotional disorders). Tricyclic antidepressants including imipramine, as well as labetalol, sotalol and monoamine oxidate inhibitors (MAOIs) Chlorpromazine (used to treat psychosis)

» Patient Instructions for METS Acidified 24 Hour Urine Collection


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