Do Endocrine Tests Need Special Preparation?

Sometimes.

Depending on the test, preparation may involve:

• Fasting
• Morning sampling
• Specific timing within the menstrual cycle
• Temporary adjustment of selected medications
• Avoiding strenuous exercise before certain tests
• Resting before blood collection

Never stop an important prescription medicine on your own simply to prepare for a blood test.

Ask your doctor or laboratory whether any medication needs to be withheld.