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Acute Posthemorrhagic Anemia


Acute posthemorrhagic anemia is a condition that develops when you lose a large amount of blood quickly. Anemia is a low number of red blood cells or a low amount of hemoglobin in your red blood cells. Hemoglobin is a protein that helps red blood cells carry oxygen throughout your body.


Informed consent

is a legal document that explains the tests, treatments, or procedures that you may need. Informed consent means you understand what will be done and can make decisions about what you want. You give your permission when you sign the consent form. You can have someone sign this form for you if you are not able to sign it. You have the right to understand your medical care in words you know. Before you sign the consent form, understand the risks and benefits of what will be done. Make sure all your questions are answered.


You may need to rest. Your healthcare provider will tell you when it is okay to increase your activities. Call your healthcare provider before getting up for the first time. If you ever feel weak or dizzy, sit or lie down right away. Then call your healthcare provider.

Heart monitor:

This is also called an ECG or EKG. Sticky pads placed on your skin record your heart's electrical activity.

You may need extra oxygen

if your blood oxygen level is lower than it should be. You may get oxygen through a mask placed over your nose and mouth or through small tubes placed in your nostrils. Ask your healthcare provider before you take off the mask or oxygen tubing.

A pulse oximeter

is a device that measures the amount of oxygen in your blood. A cord with a clip or sticky strip is placed on your finger, ear, or toe. The other end of the cord is hooked to a machine.

Iron supplements

may be given if your iron level is too low.

Blood tests

are used to check the number of red blood cells, white blood cells, and platelets. Platelets are the sticky part of your blood that helps form clots to stop bleeding. The tests may also be used to find how well your blood clots to stop bleeding.


  • A blood transfusion may be needed if your body cannot replace the blood you have lost.
  • Surgery may be needed to stop the bleeding, or to fix an injury.
  • Fluids may be given through an IV to help increase your blood pressure.


Severe blood loss can cause shock. Shock can make your blood pressure fall very low. Severe blood loss can be life-threatening if the blood is not replaced quickly enough.


You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Acute Posthemorrhagic Anemia (Inpatient Care)

Associated drugs

IBM Watson Micromedex

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.