Doctor insights on:
Can You Explain The Relationship Between Catecholamines And Metanephrines
Phenol vs ether: The chemical structure of epinephrine, the natural hormone generated in excess by a pheochromocytoma tumor, has an aromatic carbon ring with two adjacent -oh (phenol) groups and a side-chain amino group. Compounds with this structure are called catecholamines. Metanephrine is a metabolite of this hormone, with one phenol converted to an ether (-och3). If elevated, it implies the tumor. ...Read moreSee 1 more doctor answer
Metanephrins are metabolic products of cathecolamines: epinephrin and norepinephrin and can be used to diagnose excess production of these adrenal/sympathetic hormones. They can be measured in blood and urine and are very elevated in a condition called pheochromocytoma which is a tumor found mostly in the adrenal glands ...Read more
What other conditions can mimic pheochromocytoma? Catecholamines and metanephrines were normal, but i still have all symptoms. Extremely scared.
Would my drinking a lot of water be more likely to cause a false posit or f.Neg, during 24hrurine:catecholamine?Metanephrine &normetane? Creatinine?
What other blood tests (other than catecholamines and metanephrine) would
be abnormal with pheochromocytoma? Would CRP or sedrate be high?
Pheocrhomocytoma: The two blood tests you mentioned for catecholoamines and metanephrine are the only 2 i know of. Sed rate is nonspecific. ...Read more
Should i redo 24 hrs urine test for catecholamines metanephrine if i had a cigarette or just give it to lab?
Stress response: Hi. Elevated catecholamines are part of the "fight or flight" response mediated by the sympathetic nervous system in response to a serious threat to your survival. If someone has a tumor that makes catecholamines (pheochromocytoma or paraganglioma), they have elevated catecholamines, and usually bad high blood pressure, palpitations, sweating, headache, and pallor. Interesting stuff! ...Read more
Incomplete sentence: Hi. That's not a complete thought or question. Would you like to clarify it? I can tell you elevated catecholamines can be either physiological (the "fight or flight" response") or pathological (tumors of the adrenal medulla or related tissue). But I can't for the life of me understand what you're thinking or trying to ask. Good luck! ...Read more
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