Focused antenatal care (ANC): The four-visit ANC model outlined in WHO clinical guidelines.

[adapted from WHO ANC guidelines http://www.who.int/pmnch/media/publications/aonsectionIII_2.pdf] Acronyms: (EDD = estimated date of delivery; BP = blood pressure; PIH = pregnancy induced hypertension; ARV = antiretroviral drugs for HIV/AIDS; ECV = external cephalic version; IPTp = intermittent preventive treatment for malaria during pregnancy; ITN = insecticide treated bednet).*Additional intervention for use in referral centres but not recommended as routine for resource-limited settings.** Should not be given in first trimester, but if first visit occurs after 16 weeks, it can be given at first visit.+Should also be prescribed as treatment if anaemia is diagnosed.

本内容改编自世界卫生组织（World Health Organization, WHO）产前保健（Antenatal Care, ANC）指南，原文链接：http://www.who.int/pmnch/media/publications/aonsectionIII_2.pdf。
缩写说明：
EDD=预产期（Estimated Date of Delivery, EDD）；
BP=血压（Blood Pressure, BP）；
PIH=妊娠高血压综合征（Pregnancy Induced Hypertension, PIH）；
ARV=艾滋病病毒/艾滋病（HIV/AIDS）抗反转录病毒药物（Antiretroviral Drugs, ARV）；
ECV=外倒转术（External Cephalic Version, ECV）；
IPTp=妊娠期疟疾间歇性预防治疗（Intermittent Preventive Treatment for Malaria During Pregnancy, IPTp）；
ITN=经杀虫剂处理的蚊帐（Insecticide Treated Bednet, ITN）。
* 仅作为转诊中心的额外干预手段，不推荐在资源受限地区作为常规诊疗操作。
** 妊娠首三个月（第一孕期）禁用该措施，但若首次产前保健就诊在孕16周后进行，则可在首次就诊时使用。
+ 若确诊贫血，亦可将其作为治疗药物开具。