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14 Cards in this Set

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phenylalanine converts to...
p-Tyrosine
phenylalanine converted by...
phenylalanine hydroxylase (hydroxylation)
p-Tyrosine converts to...
Dopa
p-tyrosine converted by...
tyrosine hydroxylase (hydroxylation)
Dopa converted to
dopamine
Dopa converted by...
dopa decarboxylase (decarboxylation)
dopamine converted to...
norepinephrine
dopamine converted by...
dopamine Beta-hydroxylase (hydroxylation)
norepinephrine converted to..
epinephrine
norepinephrine converted by..
phenylethanol-N-methyltransferase (methylation)
order of catecholamine synthesis
phenylalanine -> p-Tyrosine ---> dopa --> dopamine --> norepinephrine --> epinephrine
5 H's of pheochromocytomas
hypertension
headache
hyperglycemia
hyperhydrosis
hypermetabolism
effects of magnesium on catecholamines
inhinits cat. release thus will cause vasodilation
cushing's triad
hypertension
bradycardia
irregular respirations