Parathyroid Hormone Test
2700 Kshs | Home Collection Available
Synonyms
Parathormone, Parathyroid hormone. (PTH)
Purpose of The Parathyroid Hormone Test
The parathyroid hormone (PTH) test measures PTH levels in the blood to evaluate the function of the parathyroid glands, which regulate calcium and phosphorus. This test helps diagnose and monitor conditions such as Overactive parathyroid glands (Hypoparathyroidism), Low parathyroid hormone (Hypoparathyroidism), chronic kidney disease, and certain bone diseases. It is often ordered when calcium levels in the blood are abnormal to identify underlying causes and assess bone health.
Patient Preparation
It’s recommended to fast for at least 8-10 hours before the test. Inform your healthcare provider about any medications or supplements you are taking, avoid stress, and drink plenty of water
Samples for PTH Testing
Follow the Instructions for Blood Collection
- Typically, these kits use a fingerstick method, where you prick your finger to collect a small amount of blood.
- Use the lancet provided in the kit to make a small puncture in the side of your fingertip.
- Collect the blood by gently massaging your finger, allowing small drops of blood to accumulate. You will then transfer the blood into the collection device provided (a small tube or card).
- Make sure to follow the instructions on how much blood to collect and how to store it for the best results.
Seal and Send the Sample
- Once the blood is collected, seal the sample according to the kit instructions, usually in a small container or vial.
- Some kits provide a pre-paid return envelope or shipping label to send the sample back to the laboratory. Make sure to mail it promptly, as some samples may need to be processed quickly.
Reference Range
10-65 ng/mL.
Results Turnaround
Within 1-3 days of receiving the samples.
Diseases / Diagnostic Indicators of Parathyroid hormone (PTH)
Symptoms of Hyperparathyroidism (High PTH Levels):
- High blood calcium levels (hypercalcemia) can cause:
- Frequent urination (polyuria)
- Excessive thirst (polydipsia)
- Fatigue and weakness
- Bone pain or tenderness (due to calcium being drawn from bones)
- Osteoporosis (weakened bones, increasing risk of fractures)
- Kidney stones (due to excess calcium in the urine)
- Nausea, vomiting, and constipation
- Confusion, memory problems, or depression
- Muscle weakness or aching
Symptoms of Hypoparathyroidism (Low PTH Levels):
- Low blood calcium levels (hypocalcemia) can lead to:
- Muscle cramps or spasms (tetany), especially in the hands, feet, or face
- Tingling or numbness in fingers, toes, or around the mouth
- Severe fatigue or lethargy
- Hair loss
- Dry, brittle nails
- Seizures (in severe cases)
- Mood changes (anxiety or depression)
- Slow heart rate or irregular heartbeat