For a image of this area see References Â» Equine Illustrations Â» Leg Anatomy and Conformation Â» Pastern and Fetlock Anatomical Study. Swelling in any of the structures, or the connective tissues between these structures at this location would cause such a swelling, but most often enlargement of the annular ligament and/or ddf tendon would give that appearance.
Provera is available in 2.5, 5.0 and 10-milligram tablets. Many practitioners will prescribe 5 mg or 10 mg each day to induce a withdrawal bleed. Typical dosage is 1 tablet once a day for 5, 7 or 10 days as determined by your doctor.
The test is performed by administering progesterone either as an intramuscular injection or oral medroxyprogesterone acetate (Provera). If the patient has sufficient serum estradiol (greater than 50 pg/mL), withdrawal bleeding should occur 2-7 days after the progestin is withdrawn, indicating that the patient's amenorrhea is due to anovulation.