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Acute posthemorrhagic anemia is anemia caused by sudden massive blood loss; common in trauma, upper/lower GI bleeding, obstetric hemorrhage and surgery. Rapid blood-volume loss causes hypovolemic shock; after volume is restored, hemoglobin concentration falls and anemia becomes evident.
Pallor; tachycardia; hypotension; dizziness; fatigue; shock
Sudden external/internal bleeding reduces total RBC mass; marrow compensation cannot keep up acutely; hypovolemia is the immediate threat, anemia manifests after fluid resuscitation.
Volume resuscitation; blood transfusion; hemostasis; iron supplementation
Rapid hemostasis; replace blood loss; treat underlying bleeding source.
It is recommended to visit the Emergency department; an appointment can be booked on this platform before the visit.
Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.
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