Inorganic Phosphorus (P), 24-Hour Urine
The test assesses the inorganic phosphorus level in 24-hour urine — an important macroelement involved in bone metabolism, energy metabolism (ATP), and muscle and nervous system function. Used for diagnosing phosphorus metabolism disorders and monitoring kidney and bone diseases.
Mechanism of abnormalities: decreased urinary phosphorus excretion may indicate deficiency or absorption disorder. Elevation may be related to kidney function disorder or excess dietary phosphorus.
Recommended for:
- people with chronic kidney diseases
- with bone metabolism disorders
- for monitoring metabolic and endocrine disorders
- with suspected phosphorus deficiency or excess
Biomaterial: 24-hour urine
- Collect urine over 24 hours in a clean container
- Exclude phosphorus-rich foods for 2-3 days
- Avoid intense physical exertion and stress
Medications: if taking phosphorus, calcium, or vitamin D medications — inform the doctor
- Suspected bone metabolism disorders (osteoporosis, rickets)
- Kidney and urinary system diseases
- Metabolic disorders (related to calcium and vitamin D)
- Monitoring therapy in chronic kidney diseases or endocrine disorders
Normal — 24-hour urine inorganic phosphorus level within reference values
Abnormality — requires physician assessment to determine the cause of change and choose further tactics
Which doctor to consult:
For test abnormalities, consultation with a general practitioner or nephrologist is recommended. The doctor evaluates laboratory results, correlates them with the clinical picture, and if needed prescribes therapy or additional examinations.
Self-treatment is not recommended!
