Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

Placental Abruption

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In one line

·The placenta peels away from the wall of the uterus before the baby is born, cutting off the baby's oxygen and causing dangerous bleeding.

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Normal physiology

·The placenta attaches to the decidua, the thick, blood-rich lining of the uterus that forms during pregnancy. Maternal blood flows into the intervillous space—a lake of blood between the uterine wall and the placenta—and bathes the villi (tiny finger-like branches of the placenta). Oxygen, glucose, and nutrients cross from mom's blood through the villi into the baby's blood, and waste crosses back the other way. The whole system depends on the placenta staying stuck to the uterine wall so that blood flow never stops. Picture it like a sponge pressed against a soaking-wet towel: as long as they touch, fluid passes through; pull them apart, and the transfer stops.

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What goes wrong

·The placenta peels away from the uterine wall before the baby is born. A clot forms in the space behind it and keeps pushing the placenta farther off the wall. The baby loses oxygen. The mother bleeds into her belly and vagina. The uterus becomes rock-hard and painful.

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Hallmark signs

·Sudden, constant belly pain that does not go away
·Vaginal bleeding (dark red or bright red)
·The uterus feels hard as a board and very tender when you press on it
·The baby's heart rate tracing shows worrying patterns (late decelerations, loss of variability, or a slow heart rate (bradycardia))
·The mother's heart beats fast (tachycardia over 100 beats per minute)
·The mother's blood pressure drops (hypotension, systolic below 90 mmHg)
·Back pain that feels deep and achy
·Contractions that come very close together or feel continuous

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Red flags · escalate now

·Heavy vaginal bleeding that soaks through a pad in less than an hour
·The baby's heart rate stays dangerously low (below 110 beats per minute) or shows late drops after every contraction
·The mother feels dizzy, sweaty, or confused—signs that her brain is not getting enough blood
·Blood pressure falls below 90/60 mmHg or the mother's pulse climbs above 120 beats per minute
·The mother's uterus stays rock-hard and does not soften at all between contractions

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Workup

·Complete blood count (CBC) with platelets
·Prothrombin time (PT), partial thromboplastin time (PTT), and fibrinogen level
·Type and crossmatch for packed red blood cells
·Kleihauer-Betke test or flow cytometry for fetal-maternal bleeding (hemorrhage)
·Ultrasound of the uterus and placenta
·Continuous electronic fetal heart rate monitoring

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Treatment

·Large-bore IV access and rapid infusion of crystalloid (normal saline or lactated Ringer's) followed by packed red blood cells if hemoglobin is low or patient is in shock
·Immediate delivery—vaginal if cervix is favorable and fetal status allows, or cesarean section if fetal distress or maternal instability
·Transfusion of fresh frozen plasma (FFP), cryoprecipitate, and platelets for documented or suspected DIC
·Continuous electronic fetal monitoring from admission until delivery
·Antenatal corticosteroids (betamethasone 12 mg IM every 24 hours for two doses, or dexamethasone 6 mg IM every 12 hours for four doses) if gestational age is 24 to 34 weeks and delivery is not immediately necessary
·Rh immunoglobulin (RhoGAM) 300 mcg IM for Rh-negative mothers (higher dose if Kleihauer-Betke test shows large fetal-maternal bleeding (hemorrhage))

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NCLEX trap

·In placental abruption, most bleeding is HIDDEN behind the placenta inside the uterus. A small pad of blood can hide a life-threatening bleed. Always assume placental abruption is severe until proven otherwise. Check how hard and tender the uterus is and how sick the mother looks, not just the pad.
·By the time blood pressure drops, the mother is already in shock and may be dying. Start fluids and blood products BEFORE blood pressure drops. A fast heart rate in a pregnant woman with bleeding is your sign to act NOW, not later.
·Placental abruption can be hidden (blood trapped behind the placenta with little outside bleeding), partial (only some of the placenta peeled away), or delayed (starts hours after an injury). Any pregnant woman with belly pain or vaginal bleeding needs placental abruption ruled out, even if she looks okay.
·In placental abruption, the only real fix is delivery of the baby and placenta. All the fluids and medicines in the world will not stop the bleeding as long as the placenta is still partly attached and bleeding. Deliver the baby fast—that stops the bleeding.
·Placental abruption spills tissue factor (a chemical that triggers clotting) into the blood and starts DIC. Watch for bruising, oozing from IV sites, bleeding gums, or blood in urine. These are the early signs of DIC. Check fibrinogen (a clotting protein) and PT/PTT (clotting times) early. Do not wait for labs to be abnormal—clinical signs come first.
·Placental abruption can start hours after a car crash, fall, or blow to the belly. Every pregnant woman in an accident needs placental abruption ruled out. Watch her for the next 24 hours. Symptoms develop over time.

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