Normetanephrine in Plasma

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2750,00 rsd

Obrtno Vreme

8 days

Uzorkovanje

Blood Draw

Kategorija

Immunohemistry

At IntroLab we provide precise and reliable plasma normetanephrine analysis services, offering you quick results and expert interpretation. Rest assured that with us, you will receive the best possible care and support throughout this process.

What is plasma normetanephrine?

Normetanephrine is one of the metabolites of norepinephrine, a hormone that is part of our “fight or flight” response to stress. When the body is under stress, norepinephrine is released into the bloodstream and helps prepare the body for an emergency response. After it has completed its function, norepinephrine is converted into normetanephrine. Measuring the levels of plasma normetanephrine allows doctors to assess adrenal gland function and the body’s ability to respond to stress.

Why is measuring normetanephrine in plasma important?

Measuring normetanephrine is particularly important for the diagnosis and monitoring of pheochromocytoma, a rare adrenal gland tumor that can lead to increased production of norepinephrine and normetanephrine. This test can also be useful in evaluating symptoms such as high blood pressure, rapid heartbeat, headaches, and sweating, which are often associated with this type of tumor.

When is this test necessary?

A plasma normetanephrine test is usually recommended for individuals who have symptoms or health conditions that might be associated with elevated levels of this hormone. These symptoms include:

  • High blood pressure
  • Rapid heartbeat
  • Sweating
  • Headaches
  • Tremors
  • Panic attacks

Additionally, doctors may recommend this test for individuals with a family history of pheochromocytoma.

How is the test performed?

A blood sample is required for the plasma normetanephrine test. The blood sample is drawn from a vein in the patient’s arm. Before the test, the patient may need to refrain from consuming food and drinks for several hours, but the doctor will provide specific instructions.

How are the results interpreted?

The results of the normetanephrine test are displayed in nanograms per liter (ng/L). The normal range for adults is typically between 0 and 900 ng/L, but these values may vary depending on the laboratory.

High levels of plasma normetanephrine usually indicate that the adrenal gland is excessively secreting norepinephrine, which can be a result of pheochromocytoma. This type of tumor can cause symptoms such as high blood pressure, rapid heartbeat, and sweating. On the other hand, low levels may indicate insufficient adrenal gland activity, which can be associated with conditions such as hypoadrenalism or Addison’s disease.

Preparation for normetanephrine in plasma testing

To ensure the most accurate results for the plasma normetanephrine test, patients should carefully follow certain instructions before the blood sample is taken.

Before the blood draw, it is necessary to rest in a lying position for 15 to 30 minutes. This allows the body to reach a state of rest, which can help provide the most accurate results.

Medications can significantly affect test results. For this reason, if you are taking medications for high blood pressure, tricyclic antidepressants, levodopa, isoproterenol, or ephedrine, it is necessary to discontinue them at least two days before the test. It is important to consult your doctor about this beforehand.

Certain foods and activities can increase plasma normetanephrine levels. In the days leading up to and on the day of the blood draw, it is advisable to avoid:

  • Consuming alcohol
  • Smoking
  • Nuts
  • Tropical fruits and citrus
  • Products containing caffeine
  • Cocoa and vanilla

To avoid the impact of stress on test results, it is necessary to avoid situations that cause physical or mental stress the day before the sample is taken. By carefully following these instructions, you will ensure that your plasma normetanephrine test results are as accurate as possible, helping your doctor make the best possible decision regarding your health.

Vrsta uzorka i vreme kada se uzima uzorak

Uzorak: Venous Blood

Obrtno vreme: 8 days

Priprema: For accurate normetanephrine analysis results, an overnight fast is recommended. Patients on methyldopa or epinephrine therapy should consult their doctor about possibly discontinuing the therapy temporarily. Additionally, before the blood sample is taken, it is advisable for the patient to have a rest period of at least 30 minutes.

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