Catecholamines (Urine)
Private Catecholamines (Urine) test in London for £348.99, assessing urinary catecholamine production with results expected in around 6 days.
Turnaround time
6 business days
Biomarkers count
1
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Overview of the Catecholamines (Urine)
The Catecholamines (Urine) test is a specialist endocrine investigation measuring catecholamine hormones excreted in urine over a timed collection period.
The test contains 1 laboratory profile: Catecholamines (Urine).
Catecholamines include adrenaline, also known as epinephrine, noradrenaline, also known as norepinephrine, and dopamine.
These chemical messengers are produced by the adrenal medulla and sympathetic nervous system and play important roles in the body's response to physical and emotional stress.
They influence heart rate, blood pressure, blood-vessel tone and energy metabolism.
Catecholamine release can vary substantially from one moment to another.
A timed urine collection, commonly collected over 24 hours, therefore provides information about cumulative hormone excretion over an extended period rather than relying on one brief blood measurement.
Urinary Catecholamines may form part of specialist investigation when excessive catecholamine production is suspected.
Rare tumours such as pheochromocytoma and paraganglioma can produce catecholamines, sometimes episodically.
However, urinary Catecholamines are not always the preferred initial biochemical test for these tumours.
Plasma free Metanephrines or urinary fractionated Metanephrines are commonly preferred because catecholamine metabolites can provide a more continuous biochemical signal even when the parent hormones are secreted intermittently.
A raised Catecholamine result does not automatically mean that an adrenal or paraganglionic tumour is present.
Acute illness, severe stress, vigorous exercise, medication, nicotine and collection problems can influence results.
Accurate preparation and a complete timed collection are therefore particularly important.
What Does the Catecholamines (Urine) Test Check?
This test measures 1 laboratory profile.
Catecholamines (Urine)
Measures catecholamine hormones excreted during a timed urine collection, providing information about adrenaline, noradrenaline and dopamine production where excessive sympathetic or adrenal hormone secretion is being investigated.
Who May Benefit From the Catecholamines (Urine) Test?
Urinary Catecholamine testing is generally most appropriate where a clinician has identified a specific reason to investigate catecholamine overproduction.
People undergoing investigation for pheochromocytoma - Excessive catecholamine production can occur with these rare adrenal tumours.
People undergoing investigation for paraganglioma - Some extra-adrenal paragangliomas produce significant amounts of catecholamines.
People with recurrent episodes of very high blood pressure - Sudden or episodic hypertension can occasionally prompt specialist adrenal investigation.
People experiencing severe episodic headaches with palpitations and sweating - This symptom combination is classically associated with catecholamine excess but is not specific to it.
People with an adrenal mass requiring biochemical assessment - Functional hormone testing may be required when an adrenal lesion is identified on imaging.
People with a hereditary predisposition to pheochromocytoma or paraganglioma - Certain inherited syndromes substantially increase tumour risk.
People with a previous abnormal Catecholamine or Metanephrine result - Repeat testing under controlled conditions may help clarify an unexpected finding.
People undergoing specialist endocrine assessment - Urinary Catecholamines can complement Metanephrines and other adrenal investigations.
People specifically advised to complete a 24-hour urinary Catecholamine test - The assay is most useful when the clinical question and collection requirements have already been clearly defined.
How to Prepare
A complete 24-hour collection is essential. Missing a substantial urine specimen can make the total Catecholamine excretion unreliable.
If part of the collection is missed, contact London Blood Tests before returning the container because the collection may need to be restarted.
Symptoms and Reasons to Consider the Catecholamines (Urine) Test
Excess Catecholamine secretion can produce symptoms that occur continuously or in sudden episodic attacks.
Episodes of severe headache - Sudden intense headaches can occur during substantial catecholamine release.
Palpitations or a racing heartbeat - Adrenaline and noradrenaline directly stimulate cardiovascular activity.
Episodes of excessive sweating - Profuse unexplained sweating can form part of the classical catecholamine-excess symptom pattern.
Sudden or difficult-to-control high blood pressure - Catecholamine excess can cause substantial increases in vascular tone and blood pressure.
Tremor or shakiness - Sympathetic stimulation can cause visible or internal trembling.
Pallor or flushing during attacks - Changes in peripheral blood flow can alter skin colour.
Anxiety or panic-like episodes without a clear trigger - Catecholamine surges can produce sensations that resemble panic attacks.
Chest discomfort during episodes - Increased heart rate and blood pressure can produce cardiovascular symptoms requiring appropriate assessment.
An adrenal mass found on imaging - Biochemical testing can help establish whether a lesion is secreting excess hormones.
A previously abnormal Metanephrine or Catecholamine result - Repeat or complementary testing may be required.
These symptoms are not specific to pheochromocytoma or catecholamine excess, and conditions such as anxiety disorders, thyroid disease, arrhythmias and medication effects can produce similar symptoms.
Severe chest pain, neurological symptoms, extreme hypertension, collapse or acute cardiovascular deterioration requires urgent medical assessment rather than waiting for routine urinary testing.
How to Book Your Catecholamines (Urine) Test
This specialist test requires the appropriate timed urine collection materials before testing begins.
Choose the Catecholamines (Urine)
Select the specialist urinary Catecholamines test and review the collection requirements.
Select your sample collection option
Obtain the laboratory-approved timed urine container and all required collection instructions before starting.
Attend your appointment
Complete the full urine collection as instructed and return the specimen with the collection times and total volume documented where required.
Laboratory analysis
Your urine undergoes specialist analysis for Catecholamine hormone excretion.
Receive your results securely
Your authorised laboratory report is delivered securely and can be reviewed with a GP, endocrinologist or other appropriate specialist.
When Will I Receive My Results?
The current expected turnaround time for Catecholamines (Urine) is approximately 6 days after an acceptable specimen reaches the laboratory.
This is a specialist endocrine assay and requires more analytical processing than routine blood tests such as Glucose or Cholesterol.
The reporting period begins when the completed urine collection reaches the laboratory rather than when you start collecting it at home.
The laboratory must also confirm that the specimen and collection information are suitable before analysis can be completed. Missing collection times, incomplete volume information or an obviously incomplete 24-hour collection can delay reporting or require recollection.
Once testing, quality control and laboratory authorisation are complete, the result is released securely.
Understanding Your Results
A result within the laboratory reference range means that marked Catecholamine overproduction was not demonstrated during the collection period.
This can make substantial Catecholamine excess less likely, although the most appropriate biochemical test depends on the clinical question.
A raised result indicates increased Catecholamine excretion.
Possible explanations include physiological stress, acute illness, strenuous exercise, medication effects and catecholamine-producing tumours.
The pattern of adrenaline, noradrenaline and dopamine, where individually reported, can provide additional information.
A raised result should not automatically trigger the conclusion that pheochromocytoma or paraganglioma is present.
The degree of elevation, symptoms, medication, collection quality and complementary Metanephrine results all matter.
Depending on the findings, further investigation can include Plasma Metanephrines, repeat biochemical testing and specialist imaging.
A substantially abnormal result should be discussed with an endocrinologist or another clinician experienced in adrenal disease.
Why Book With London Blood Tests?
Private Catecholamine testing - Access specialist urinary endocrine testing privately.
Timed hormone assessment - A 24-hour collection provides information about hormone excretion over a longer period.
Relevant to adrenal investigations - Catecholamine measurement can contribute to assessment of pheochromocytoma and paraganglioma.
Suitable for intermittent hormone release - Urine integrates secretion occurring at different times during the collection.
Specialist collection materials - Appropriate urine containers and instructions can be provided.
Specialist laboratory analysis - Samples undergo dedicated endocrine testing.
Secure reporting - Receive your authorised report securely.
Clear pricing - The Catecholamines (Urine) test costs £348.99.
Private Catecholamines (Urine) Test in London
London Blood Tests provides private Catecholamines (Urine) testing for people requiring specialist assessment of adrenal and sympathetic hormone production.
The test costs £348.99 and contains one laboratory profile: Catecholamines (Urine).
A complete timed urine collection is required, commonly over 24 hours.
Results are expected approximately 6 days after the laboratory receives an acceptable completed collection.