Causes Elevated Catecholamines | Medical Algorithm

Are you evaluating a patient with an elevated plasma catecholamine level?

Yes

At the time of collection was the patient?

• under stress?

Yes

• recently exercising or exerting self?

Yes

• sitting or standing upright?

Yes

• undergoing alcohol withdrawal?

Yes

• having an abrupt discontinuation of clonidine therapy?

Yes

• having a migraine headaches?

Yes

Does the patient have?

• pheochromocytoma?

Yes

• pre-eclampsia?

Yes

• subarachnoid hemorrhage?

Yes

• an intracranial mass lesion?

Yes

• intracerebral vasculitis?

Yes

Was the patient recently exposed to?

• ajmaline monoethanolate?

Yes

• amphetamines?

Yes

• cocaine?

Yes

• diazoxide?

Yes

• ephedrine or pseudoephedrine?

Yes

• ether?

Yes

• isoproterenol?

Yes

• levodopa or methyldopa?

Yes

• LSD?

Yes

• an MAO inhibitor (phenelzine, selegiline, clorgiline)?

Yes

• nitroglycerin?

Yes

• phencyclidine (PCP)?

Yes

• phentolamine mesylate?

Yes

• phenylpropanolamine?

Yes

• propranolol?

Yes

• theophilline?

Yes

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Monitoring

Specialty

Objective

ICD-10

Differential Diagnosis of Increased Plasma Catecholamine Levels

Purpose: To identify possible causes of an elevated plasma catecholamine concentration.