Diagnosis of hypopara

Diagnosis of Hypoparathyroidism

How is Hypoparathyroidism Diagnosed?

1. Blood Tests
   Hypoparathyroidism is primarily diagnosed through a calcium blood test. Key findings include:

   • Low blood calcium

   • High blood phosphate

   • Low parathyroid hormone (PTH) levels

   Additional blood tests may include:

   • Thyroid function

   • Kidney function

   • Liver function

   • Bone profile

   • Vitamin D levels

2. Scans
   A bone scan and kidney scan are typically requested during the initial appointment.

3. Urine Tests
   A 24-hour urine test is often required. This test involves collecting urine over a 24-hour period, so it requires some planning.

4. Physical Examination
   During an examination, your doctor may look for the following signs:

   • Chvostek’s Sign: Tapping in front of the ear may cause facial twitching if calcium levels are low.

   • Carpopedal Spasm: Inflating a blood pressure cuff may trigger painful muscle spasms in the hands and feet.

   • Cataracts: Your eyes may be checked for cataracts, which can be a complication.

   • Reflexes: Hyperactive reflexes may be present, detected by tapping tendons (e.g., knee or elbow) using a tendon hammer.

5. Genetic Testing
   Genetic testing is available for inherited forms of hypoparathyroidism. Genetic counseling can help families understand the condition’s impact.

6. Other Investigations
   Additional tests may be recommended to identify the cause of hypoparathyroidism, including:

   • Hand X-rays: To detect shortened bones associated with pseudohypoparathyroidism.

   • Echocardiogram: To identify heart abnormalities linked to DiGeorge syndrome.

   • Genetic Studies: For suspected inherited causes.

   • Autoimmune Tests: If an autoimmune cause is suspected, further blood tests may be done, including thyroid function tests.