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Phosphorus (PHOS) is a microelement that is important for the muscles, bones and teeth, and for milk production in nursing women. It is involved in the metabolism of nutrients, vitamin D, calcium, magnesium, iodine and zinc and maintains the balance of acids and alkalis in the body.

Prior registration is not required; upon arrival, please go straight to the reception.

Information on how to prepare for the test is available HERE.

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Why it is worth

to be examined at our Centre?

  • The laboratory is accredited with the ISO 15189 standard, so you can be confident that your tests will be performed to the highest quality. 
  • You will find out the results of the main tests within 1–2 hours and the rest within 1 day, except in cases where this is impossible due to the technological process (e.g., the time it takes for a culture to grow).
  • The results of the tests carried out will be explained by our laboratory specialists. This service is only offered by a few laboratories in the country.
  • If required, we can perform further tests using the same sample of blood, for up to 7 days after the sampling.
  • No danger of damaging or mixing up the test samples due to transportation. 
  • Tests can be carried out anonymously.

Good to know

Who should have a phosphorus test?

A phosphorus test is recommended for people with renal diseases, diabetes mellitus, increased calcium blood concentration or vitamin D deficiency, and for those who take stomach antacids, corticosteroids, or calcium or phosphorus supplements. The test may also be used for the parathyroid glands and renal diseases. 

What are the symptoms of phosphorus deficiency?

  • weakness of the muscles
  • bone pains
  • diminished appetite

Phosphorus is contained in a variety of foods. Its deficiency is, therefore, rarely diagnosed. 

What are the potential consequences of phosphorus deficiency for the health?

It has been proved that prolonged and significant phosphorus deficiency may cause the development of the following diseases:

  • in adults – osteomalacia (softening of the bones)
  • in children – scurvy

What are the symptoms of excess phosphorus?

Excess phosphorus may manifest in people who have diseases of the kidneys or parathyroid glands, which regulate calcium metabolism. 

Increased phosphorus concentration may disturb the metabolism of other microelements such as iron, magnesium, zinc or calcium. Excess phosphorus may be also associated with the formation of kidney stones. 

How to find out your test results?

  • Your test results will be ready within 1 working day.
    You can pick them up at the reception or, if you wish, we will email them.
  • For an explanation of the test results, you should call the laboratory tel. (+370) 247 64 17.

FAQ (frequently asked questions)

Generally, a phosphorus test is carried out in conjunction with a calcium test. 

The human body does not produce phosphorus; that is why we can get it only with food and supplements.
Products rich in microelement phosphorus include pumpkin, sunflower and sesame seeds, rice, oats, meat, fish products, egg yolks, whole grains, nuts, pulses and potatoes.

Daily norm for phosphorus:

  • for adults – 1,400–1,500 mg
  • people aged over 51 – ~1,200 mg
  • pregnant women – ~1,600 mg
  • nursing women – ~17,400 mg
  • children aged under 8 – ~1,000 mg
  • teens aged 9–18 – ~1,200–1,600 mg

Contact your family doctor or internist or register to visit a physician specialising in this field at our centre. Please find the prices for a consultation HERE.

Excess phosphorus may be caused by:

  • renal function disorders
  • hypoparathyroidism – a condition where the parathyroid gland produces an insufficient quantity of parathyroid gland hormones (PTH)
  • magnesium deficiency
  • excess vitamin D

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