Medical abortion in the community: tests before and check of success
BioMG follows French guidelines. Adapt it to the guidelines and the tests available where you practise.
Before the abortion (up to 9 weeks of gestation in the community)
Laboratory tests
- ABO and RhD blood group (unless a blood group card exists: one determination is enough)
- Serum β-hCG (quantitative) (baseline value if follow-up will be by assay, or pregnancy of unknown location)if neededFollow-up planned by hCG measurement: it is judged on the fall relative to the initial measurement [2]. Pregnancy of unknown location on ultrasound, without symptoms or risk factors: abortion remains possible, with an hCG measurement before and after the dose [2].
- FBC (if anaemia suspected from history or examination)if needednon-French guidelineACOG (United States, 2020), RCOG (UK, 2022) and the German guideline (2022) do not screen for anaemia routinely but measure haemoglobin on clinical suspicion or according to the history; the medical abortion studies excluded women with haemoglobin below 9.5 to 10 g/dL [3,4,5]. HAS (2021) and the short CNGOF text (2016) do not address this test [2,6]; the mifepristone SmPC calls for caution in case of anaemia and makes the choice of method depend on its degree [7].
On self-collected vaginal sample
- Chlamydia trachomatis and Neisseria gonorrhoeae NAAT (PCR) (to be offered)
Depending on exposure (see the STI page)
- HIV serologyif neededThe preliminary consultation is an opportunity to offer STI screening according to current recommendations [6]: risk factors (multiple partners, recent partner, history of STI, etc.).
- Syphilis serologyif neededThe preliminary consultation is an opportunity to offer STI screening according to current recommendations [6]: risk factors (multiple partners, recent partner, history of STI, etc.).
- Hepatitis B serologyif neededThe preliminary consultation is an opportunity to offer STI screening according to current recommendations [6]: risk factors (multiple partners, recent partner, history of STI, etc.).
- Hepatitis C serology (to be offered according to risk factors)if neededThe preliminary consultation is an opportunity to offer STI screening according to current recommendations [6]: risk factors (multiple partners, recent partner, history of STI, etc.).
- Dating ultrasound (not a laboratory test): encouraged, quickly accessible, but not essential if the date of the last period is certain.
- Cervical smear or HPV screening test if the woman is not up to date.
Do not order
- Serum β-hCG to date the pregnancy before the abortion: unreliable, must not be used for dating [2]
Check of success (day 14 to day 21)
Between day 14 and day 21 after taking mifepristone
- Serum quantitative β-hCG
- Or: semi-quantitative urine self-test suited to follow-up after termination of pregnancy, with telephone follow-up; or pelvic ultrasound (not a laboratory test).
Sources (13)
- DREES. En 2024, 251 270 IVG ont eu lieu en France, dont 80 % sont médicamenteuses. Études et résultats, septembre 2025.
- Collège national des gynécologues et obstétriciens français (CNGOF). L’interruption volontaire de grossesse. Recommandations pour la pratique clinique, 2016 (texte court publié : Vayssière C, Gaudineau A, Attali L, et al. J Gynecol Obstet Biol Reprod (Paris). 2016;45(10):1596-1603).
- American College of Obstetricians and Gynecologists, Society of Family Planning. Medication Abortion Up to 70 Days of Gestation. ACOG Practice Bulletin No. 225. Obstet Gynecol. 2020;136(4):e31-e47.
- David M, Achtenhagen A, Bamberg C, et al. Abortion in the First Trimester. Guideline of the DGGG (S2k-Level, AWMF Registry No. 015-094, December 2022) - Part 1. Geburtshilfe Frauenheilkd. 2023;83(10):1205-1220.
- Royal College of Obstetricians and Gynaecologists. Making Abortion Safe. Best practice in abortion care. Mars 2022.
- Haute Autorité de santé. Interruption volontaire de grossesse par méthode médicamenteuse – Mise à jour. Recommandation de bonne pratique, validée le 11 mars 2021.
- ANSM, Base de données publique des médicaments. Résumé des caractéristiques du produit MIFEGYNE 200 mg (mifépristone), rubrique 4.4, mise à jour du 29/09/2026, consulté le 30 octobre 2026.
- Haute Autorité de santé. Réévaluation de la stratégie de dépistage des infections à Chlamydia trachomatis. Synthèse, septembre 2018.
- Vigoureux S, Maurice P, Sibiude J, Garabedian C, Sananès N. Prévention de l’allo-immunisation anti-RH1 au premier trimestre de la grossesse : recommandations pour la pratique clinique du Collège national des gynécologues-obstétriciens français. Gynecol Obstet Fertil Senol. 2024;52(7-8):446-453.
- National Institute for Health and Care Excellence (NICE). Abortion care. NICE guideline NG140, septembre 2019, dernière mise à jour 27 mai 2025.
- Organisation mondiale de la santé. Abortion care guideline. 2022, version en ligne (srhr.org/abortioncare), recommandations 8 (section 3.3.3) et 34 (section 3.5.1).
- Society for Maternal-Fetal Medicine; Prabhu M, Louis JM, Kuller JA. Society for Maternal-Fetal Medicine Statement: RhD immune globulin after spontaneous or induced abortion at less than 12 weeks of gestation. Am J Obstet Gynecol. 2024;230(5):B2-B5.
- Horvath S, Goyal V, Traxler S, Prager S. Society of Family Planning committee consensus on Rh testing in early pregnancy. Contraception. 2022;114:1-5.