A blood transfusion is the life-saving process of transferring whole blood or specific blood components from a healthy donor directly into the circulatory system of a recipient. In obstetric and midwifery practice across Nigeria, transfusions are frequently required to manage severe postpartum hemorrhage, profound anaemia from malaria or malnutrition, and complications during major gynecological surgeries.
Components given to patients depend entirely on their clinical deficit:
Transfusion safety relies completely on matching the donor's red blood cell antigens with the recipient's plasma antibodies. Mismatched blood triggers a severe immune response where the recipient's antibodies attack the donated red cells, causing rapid hemolysis.
The ABO system classifies blood into groups A, B, AB, and O based on surface antigens. Group O is traditionally called the universal red cell donor because its cells lack A and B antigens, while AB is the universal recipient.
The Rhesus (Rh) factor is another critical surface protein. A person is either Rh-positive or Rh-negative. In midwifery, Rh compatibility is especially vital for women of childbearing age to prevent sensitization during pregnancy and future transfusions.
Before any blood product leaves the hospital blood bank, rigorous preparation must take place. Midwives must confirm that a valid doctor's prescription is present and that informed consent has been thoroughly explained and documented.
Next, a blood sample must be drawn for cross-matching and grouping. A common and dangerous error in clinical settings is mislabeling this pre-transfusion specimen. The sample tube must be labeled at the bedside with the patient's full name, hospital number, date, and time, directly comparing it against the patient's wristband. Baseline vital signs—temperature, pulse, respiration, and blood pressure—must be recorded before starting the transfusion to establish a point of comparison.
Bedside safety checks are the final and most important barrier against fatal transfusion errors. Never skip this step, even in an emergency. Two qualified healthcare professionals, usually two midwives or a midwife and a doctor, must independently verify the blood product at the patient's bedside.
They must check the following details against the patient's identification band and the transfusion request form:
Blood administration requires specific equipment and careful management of infusion times. Midwives must use a standard blood administration set that contains an integrated mesh filter to catch any micro-aggregates or clots. Normal saline (0.9% sodium chloride) is the only intravenous fluid compatible with blood products; glucose solutions cause red blood cell hemolysis, while Ringer's lactate contains calcium which can trigger clotting in the tubing.
The infusion must start slowly—usually no more than 2 milliliters per minute for the first 15 minutes—while the midwife stays with the patient. If no signs of a reaction appear, the flow rate can be increased to complete the unit within a maximum of 4 hours to prevent bacterial multiplication in the warming blood.
Constant vigilance is required throughout the entire transfusion process. The most dangerous acute reactions typically occur within the first 15 minutes of administration or after the infusion of a small volume of blood.
Midwives should follow this observation schedule:
Despite careful checks, transfusion reactions can still occur. Midwives must act immediately at the first sign of trouble. Common symptoms include fever, chills, chest pain, back pain, shortness of breath, hypotension, and unusual bleeding or hives.
Immediate actions when a reaction is suspected: