Parathyroid Hormone (PTH) Test – Lab Test in Louisiana

What this test is

Parathyroid hormone (PTH) is a vital hormone produced by the parathyroid glands, which are small glands located in your neck. This test quantifies the amount of PTH circulating in your blood.

What it measures

• Parathyroid Hormone (PTH) — reflects calcium and phosphorus regulation

What the test involves

A healthcare professional will collect a blood sample, typically from a vein in your arm. The sample is then sent to a laboratory for analysis.

Why it is often ordered

Clinicians often order this test to investigate conditions affecting the parathyroid glands or to assess problems with calcium and phosphorus levels. It helps in understanding how these minerals are regulated in your body.

Preparation

To prepare for this test, follow any specific instructions provided by the laboratory. This may include fasting or avoiding certain foods or medications before your blood draw.

How results are reported

Your test results will indicate the level of parathyroid hormone detected in your blood. Reference ranges, which are the expected values for healthy individuals, vary between laboratories.

Before you go

• Fasting requirements
• Medication restrictions
• Test turnaround time