Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Parathyroid Hormone (intact)
Parathyroid hormone is central to calcium regulation, which directly impacts bone integrity, muscle contraction, and recovery in athletes. Monitoring PTH helps ensure your mineral metabolism supports peak physical performance.
Reference Ranges
Low
1.6
Normal
6.9
High
Low
1.6
Normal
6.9
High
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.
What It Measures
This test measures the concentration of intact parathyroid hormone in your blood. PTH is produced by the parathyroid glands and regulates calcium levels by influencing calcium absorption in the gut, reabsorption in the kidneys, and release from bones.
Why It Matters
For athletes, calcium balance influences bone resilience under training stress, muscle function during exercise, and recovery efficiency. PTH monitoring can help identify mineral imbalances before they affect performance.
When to Test
Testing may be recommended if you have abnormal calcium levels, symptoms of bone loss, kidney stones, or suspected parathyroid dysfunction. Your healthcare provider may also suggest testing alongside calcium and vitamin D assessments.
Symptoms
Low Levels
Some people with low PTH may experience muscle cramps, tingling in the fingers or around the mouth, fatigue, or dry skin. Low PTH can lead to elevated phosphorus and low calcium levels.
High Levels
Elevated PTH may be associated with bone pain, kidney stones, excessive urination, abdominal discomfort, fatigue, and weakness. High levels could suggest hyperparathyroidism or vitamin D deficiency.
Lifestyle Tips
Ensuring adequate calcium and vitamin D intake through diet and safe sun exposure may support healthy PTH regulation. Weight-bearing exercise can benefit bone health. Regular monitoring of calcium and vitamin D alongside PTH is often recommended.
Frequently Asked Questions
What is the difference between PTH and calcium tests?
Calcium tests measure the mineral level in your blood, while PTH measures the hormone that regulates calcium. Testing both together helps determine whether calcium imbalances are caused by parathyroid issues.
Can vitamin D deficiency affect PTH levels?
Yes, low vitamin D can cause PTH to rise as the body tries to maintain calcium levels. This is called secondary hyperparathyroidism and may improve with vitamin D supplementation.
What are the parathyroid glands?
The parathyroid glands are four small glands located behind the thyroid in the neck. They produce PTH, which is essential for regulating calcium and bone metabolism.