Abortion refers to the termination of pregnancy before the fetus is viable outside the womb, usually defined in clinical practice as expulsion or removal of the products of conception before 22 to 24 weeks of gestation, or a fetal weight of less than 500 grams. In Nigerian healthcare settings, understanding this timeline is critical for legal, ethical, and clinical documentation. Broadly, abortion is divided into two primary categories based on how the termination is initiated:
Spontaneous abortions present in various clinical stages, each requiring specific nursing interventions and medical management. Nurses must accurately differentiate these subtypes based on physical examination and ultrasound findings.
Induced abortions are categorized primarily by safety, legality, and the method used. In Nigeria, legal frameworks restrict abortion unless it is performed to save the pregnant woman's life.
| Classification Category | Description | Common Clinical Setting |
|---|---|---|
| Safe / Legal Induced Abortion | Performed by skilled practitioners using WHO-approved methods in sterile environments. | Authorized hospitals and specialized clinics |
| Unsafe Induced Abortion | Carried out by unskilled persons or using dangerous methods in unhygienic conditions. | Backstreet operators, self-insertion of foreign objects |
| Medical Induced Abortion | Termination achieved using pharmaceutical agents such as mifepristone and misoprostol. | Outpatient or inpatient clinical supervision |
| Surgical Induced Abortion | Termination achieved through mechanical procedures like vacuum aspiration or D&C. | Operating theatre or minor procedure room |
Classifying abortions by gestational age guides the choice of evacuation method and predicts potential complications. First-trimester abortions occur before 13 completed weeks of gestation, where medical options or simple suction techniques are usually effective. Second-trimester abortions occur between 13 and 24 weeks, requiring more complex medical induction protocols or surgical dilation and evacuation due to increased fetal skeletal development and placental attachment.
Anatomical classifications focus on the location of the pregnancy. While intrauterine pregnancies terminate within the uterine cavity, ectopic pregnancies represent an abnormal implantation outside the uterine cavity—most commonly in the fallopian tube. Though technically a distinct condition, ruptured ectopic pregnancies present with acute surgical emergencies that mimic severe spontaneous bleeding.
Nurses play a frontline role in evaluating patients presenting with bleeding and pelvic pain. A comprehensive assessment includes obtaining an accurate menstrual history, estimating gestational age, and assessing vital signs to detect hypovolemic shock. Nurses inspect perineal pads to quantify blood loss and monitor for tissue passage.
Diagnostic tools ordered by the physician and supported by nursing preparation include quantitative serum beta-hCG tests and transvaginal ultrasound scans. In emergency scenarios, stabilizing maternal hemodynamics takes precedence over definitive classification.
Post-abortion care encompasses physical recovery, infection prevention, psychological support, and contraceptive counseling. Nurses must monitor for immediate complications such as severe hemorrhage, uterine perforation, and pelvic infection. Patients treated for septic abortion require broad-spectrum intravenous antibiotics and close monitoring for septic shock.
Emotional support is vital, as grief can occur regardless of whether the abortion was spontaneous or induced. Nurses provide non-judgmental care and connect patients with family planning services to prevent rapid repeat unintended pregnancies.