Threatened miscarriage; Threatened spontaneous abortion; Abortion - threatened; Threatened abortion
Symptoms of a threatened miscarriage include:
- Abdominal cramps with or without vaginal bleeding
- Vaginal bleeding during the first 20 weeks of pregnancy (last menstrual period was less than 20 weeks ago)
Note: During an actual miscarriage, low back pain or abdominal pain (dull to sharp, constant to intermittent) typically occurs, and tissue or clot-like material may pass from the
Signs and tests
Abdominal or vaginal ultrasound may be done to check the baby's development, heart beat, and amount of bleeding. A pelvic exam will be done to check the cervix.
The following blood tests may be performed:
HCG (quantitative)test over a period of days or weeks to confirm whether the pregnancy is continuing
Complete blood count(CBC) to determine amount of blood loss
Pregnancy testto confirm pregnancy
- Progesterone level
White blood count(WBC) with differentialto rule out infection
Review Date: 11/21/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.