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

Postpartum emergency

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In one line

·After a baby is born, four life-threatening emergencies can happen within 6 weeks: postpartum bleeding (hemorrhage) (bleeding >500 mL vaginal or >1000 mL cesarean), endometritis (infection of the uterine lining), preeclampsia with severe features or eclampsia (dangerously high blood pressure ≥160/110 mmHg causing seizures and organ damage), and pulmonary embolism (a clot lodging in a lung artery) (blood clot blocking lung arteries).

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Normal physiology

·After birth, the thick muscle wall of the uterus (called the myometrium) squeezes down hard. That squeezing compresses the spiral arteries (small blood vessels that fed the placenta during pregnancy) at the spot where the placenta was attached. The placenta separates and is pushed out. Then blood clotting proteins form a fibrin clot (like a scab) that seals the raw uterine lining (called the endometrium). Over the next 6 to 12 weeks, blood volume and blood pressure return to normal levels. This coordinated process—stopping bleeding (hemostasis) and shrinking the uterus back to pre-pregnancy size (involution)—is the normal postpartum state.

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What goes wrong

·Usually one root cause explains all the abnormal findings together. The uterus does not squeeze (atony), or pieces of placenta stay stuck inside, or there is a tear in the birth canal, or the blood cannot clot, or infection spreads from the uterus into the bloodstream, or blood pressure stays dangerously high and damages organs, or a clot floats to the lungs and blocks oxygen. That upstream break triggers a predictable cascade you see at bedside.

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Hallmark signs

·Heavy vaginal bleeding that soaks one or more pads in an hour, or passing clots bigger than a golf ball
·Fast heart rate—over 100 to 110 beats per minute—while blood pressure is still normal or just a little low
·Low blood pressure—top number under 90—and confusion, agitation, or loss of consciousness
·Fever of 100.4°F (38°C) or higher, smelly vaginal discharge after birth, and tenderness low in the belly
·Severe headache, vision problems (blurry, flashing lights, or blind spots), and sharp pain under the right ribs
·A full-body seizure (convulsions with stiff muscles then jerking movements) in a woman with high blood pressure after delivery
·Sudden trouble breathing, sharp chest pain that gets worse when you take a deep breath, fast breathing (over 20 breaths per minute), and low oxygen (less than 94% on room air)
·Very little urine—less than 30 milliliters per hour or half a milliliter per kilogram of body weight per hour—and rising creatinine (a waste product measured in blood)

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Red flags · escalate now

·Top blood pressure under 90 or a drop of 40 points or more from your usual, heart rate over 120, or confusion and altered mental status—these mean shock (the body's circulation is failing) and you need emergency IV fluids, blood products, and immediate treatment to find and stop the cause
·Vaginal bleeding over 500 milliliters in the first 24 hours after vaginal birth (or over 1,000 milliliters after cesarean), especially with a soft, boggy uterus you cannot feel at the belly button—this is bleeding (hemorrhage) from uterine atony or hidden bleeding and requires urgent uterine massage, medications to make the uterus contract (oxytocin, misoprostol, carboprost), and possibly a balloon inside the uterus, artery embolization, or emergency hysterectomy
·Blood pressure 160 over 110 or higher on two checks 15 minutes apart, plus severe headache, vision changes, or pain under the right ribs—this is preeclampsia with severe features or HELLP syndrome; you need IV magnesium sulfate to prevent seizures and fast-acting blood pressure medicine (labetalol, hydralazine, or nifedipine) right away
·A new seizure after delivery in a woman with high blood pressure—assume eclampsia until proven otherwise; give IV magnesium sulfate (4 to 6 grams over 15 minutes, then 1 to 2 grams per hour), protect the airway, lower blood pressure, and check for brain bleeding with imaging
·Sudden severe shortness of breath, chest pain, oxygen saturation under 90%, fast heart rate, and low blood pressure—think pulmonary embolism (a clot lodging in a lung artery) (clot in the lung); get an urgent CT scan of the chest arteries (CTPA) or ventilation-blood flow (perfusion) scan, start blood thinners immediately if suspicion is high, and consider clot-busting drugs if the clot is massive and blood pressure is crashing

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Workup

·Complete blood count (CBC) with hemoglobin and hematocrit
·Coagulation panel: fibrinogen level, prothrombin time/INR, partial thromboplastin time (PTT)
·Type and crossmatch (blood typing and antibody screen)
·Bedside ultrasound of the uterus (transabdominal or transvaginal)
·CT pulmonary angiography (CTPA) with IV contrast
·Liver enzymes (AST, ALT), platelet count, lactate dehydrogenase (LDH), and peripheral blood smear
·Arterial blood gas (ABG) and serum lactate
·Blood cultures (two sets from separate sites) before starting antibiotics

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Treatment

·Bimanual uterine massage and IV oxytocin 10 units as slow IV push or IM injection, then continuous infusion of 10-40 units oxytocin in 1 liter normal saline or lactated Ringer's at 125-200 mL/hr
·IV tranexamic acid 1 gram infused over 10 minutes, given within 3 hours of bleeding onset
·Second-line uterotonic medications if oxytocin fails: methylergonovine 0.2 mg IM every 2-4 hours (avoid if with high blood pressure (hypertensive)), or misoprostol 800-1000 mcg rectally or sublingually, or carboprost 250 mcg IM every 15-90 minutes (max 8 doses, avoid if asthmatic)
·Intrauterine balloon tamponade using a Bakri balloon or Foley catheter filled with 250-500 mL sterile saline
·Massive transfusion protocol: packed red blood cells, fresh frozen plasma, and platelets in 1:1:1 ratio, guided by ongoing blood loss and coagulation labs; give crystalloid (lactated Ringer's or normal saline) IV to maintain blood pressure until blood products arrive
·Broad-spectrum IV antibiotics started within 1 hour of sepsis recognition: gentamicin 5 mg/kg once daily plus clindamycin 900 mg every 8 hours, OR ampicillin-sulbactam 3 g every 6 hours, OR piperacillin-tazobactam 3.375 g every 6 hours (per ACOG endometritis guidelines and Surviving Sepsis Campaign)
·Acute blood pressure control with IV labetalol 20 mg initial dose, then 20-80 mg every 10 minutes (max 300 mg total), OR IV hydralazine 5-10 mg every 20 minutes (max 30 mg), to keep systolic BP below 160 and diastolic below 110; PLUS IV magnesium sulfate 4-6 g loading dose over 15-20 minutes, then 1-2 g/hr continuous infusion

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NCLEX trap

·Heavy bleeding after birth kills fast. If bleeding is more than 500 mL after vaginal birth or 1,000 mL after cesarean, or if the heart beats faster than 100 per minute and does not slow down, act now. Massage the uterus hard with your hand, give oxytocin (a medicine that makes the uterus squeeze tight), and call for help—all in the first minute. Do not watch and wait.
·Methylergonovine (a medicine that makes the uterus squeeze) can kill a mother with high blood pressure by pushing it even higher. Always check blood pressure first. If it is 140/90 or higher, do not give methylergonovine. Use a different medicine like carboprost or misoprostol instead, and give labetalol or hydralazine to lower the blood pressure.
·Fever (100.4°F or 38°C or higher) plus fast heart (over 100 beats per minute) plus low blood pressure (under 90/60) means septic shock—a life-threatening infection that drops blood pressure like a crash. Give broad-spectrum antibiotics (medicines that kill many types of bacteria) within 1 hour, not later. Minutes matter.
·High blood pressure (140/90 or higher) plus headache plus pain under the right ribs or platelets (clotting cells) under 100,000 means severe preeclampsia or HELLP syndrome—organs are breaking down. Check her blood count and liver enzymes right now. Give magnesium sulfate (a medicine that stops seizures) and medicine to lower blood pressure.
·Sudden trouble breathing after birth means pulmonary embolism (a clot lodging in a lung artery)—a blood clot traveled from the leg to the lungs and blocked oxygen flow. This is a life-threatening emergency. Get a CT scan of the chest now and be ready to give blood-thinning medicine like heparin or enoxaparin, or start CPR if her heart stops.
·If the uterus stays soft and does not squeeze after oxytocin, give more medicines that make it squeeze: methylergonovine (if blood pressure is under 140/90), then carboprost or misoprostol. If bleeding continues, place a balloon inside the uterus to press on the bleeding vessels, or take her to surgery to block the uterus blood vessels or remove the uterus. Do not wait.

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