Parathyroid Hormone

Parathormone, PTH (Parathyroid Hormone) Test

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Taking medicine that raises PTH levels. These include lithium, furosemide, rifampin, anticonvulsants, thiazide diuretics, and medications that contain phosphate.
• Taking medicine that lowers PTH levels. These include cimetidine (Tagamet) and propranolol (Betachron ER, Inderal, Inderal LA).
• Being pregnant or breast-feeding.
• Having high cholesterol or triglyceride levels.
• Having a scan that uses a radioactive tracer within 1 week of PTH test.
• Drinking milk or eating milk products right before the test.

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Author:	Sydney Youngerman-Cole, RN, BSN, RNC	Last Updated: July 26, 2006
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Matthew I. Kim, MD - Endocrinology & Metabolism
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