The Parathyroid hormone (PTH) looks at hormone that controls calcium. It is done for: abnormal calcium, kidney disease, vitamin D deficiency.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Abnormal calcium, kidney disease, vitamin D deficiency.
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Overactive parathyroid, vitamin D deficiency, kidney disease. Low or negative may mean: Underactive parathyroid. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Hormone that controls calcium.
Blood
Overactive parathyroid, vitamin D deficiency, kidney disease.
Underactive parathyroid.
Reference ranges vary by lab, age and sex — always use the range printed on your own report.
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does the Parathyroid hormone (PTH) measure?
Hormone that controls calcium.
Why is the Parathyroid hormone (PTH) done?
Abnormal calcium, kidney disease, vitamin D deficiency.
Do I need to fast for the Parathyroid hormone (PTH)?
No fasting needed.
What does a high or positive Parathyroid hormone (PTH) mean?
Overactive parathyroid, vitamin D deficiency, kidney disease.
What does a low or negative Parathyroid hormone (PTH) mean?
Underactive parathyroid.
What is the normal range for the Parathyroid hormone (PTH)?
Laboratory-specific; see the reference range on your report.
Why is Parathyroid hormone (PTH) done?
Abnormal calcium, kidney disease, vitamin D deficiency.
Do I need to prepare or fast for Parathyroid hormone (PTH)?
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Overactive parathyroid, vitamin D deficiency, kidney disease. Low or negative may mean: Underactive parathyroid. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
SI text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).
Sources: SI health summary (own words); MedlinePlus Lab Tests and CDC as references