Copeptin Plasma Test

What is the purpose of this test?

The Copeptin Plasma Test measures levels of copeptin, a peptide closely linked to vasopressin, a hormone that regulates water balance, blood pressure, and stress responses. Copeptin levels can provide insights into how the body manages these functions, especially in conditions where vasopressin activity is affected.

This test is particularly useful for evaluating water balance disorders, such as diabetes insipidus, and distinguishing between different causes of hyponatremia (low sodium levels). Additionally, it can support the diagnosis of stress-related conditions, cardiovascular issues, and even neuroendocrine disorders, offering critical information to help guide treatment decisions.

Who should get this test?

• Individuals experiencing excessive thirst and frequent urination.
• Those with unexplained low sodium levels (hyponatremia).
• Patients with symptoms of diabetes insipidus.
• People with suspected heart or stress-related health issues.
• Individuals being evaluated for neuroendocrine disorders.

When should I order a Copeptin Plasma Test?

Patients may consider ordering this test if they have symptoms or concerns related to water balance or stress regulation. Symptoms to consider:

• Persistent thirst or dehydration despite adequate fluid intake.
• Excessive or frequent urination.
• Confusion, fatigue, or weakness due to abnormal sodium levels.
• Unexplained blood pressure fluctuations or cardiovascular issues.
• Stress-related symptoms, such as increased heart rate or hormonal imbalances.

If you experience these symptoms or suspect a related health condition, the Copeptin Plasma Test can provide valuable information to guide your doctor in diagnosing and managing your health.