Estradiol

For children aged 1 to 5 years, do not eat for 2-3 hours before the test. Do not eat for 2-3 hours before the test; still (non-carbonated) water is allowed. Stop steroid and thyroid hormones 48 hours before the test (as agreed with your doctor). Avoid physical and emotional stress for 24 hours before the test. Do not smoke for 3 hours before the test.

Record patient's last menstrual period