How much blood can a 27lb child loose?!


Question: Hi my child had a tosiliectomy and had complications had to have the surgery again after 5 days due to vomiting blood, they messured how much was lost in hopital and it was 300mls in 2 hours, then stopped. Had to sign transfussion form. Please can anyone tell me how much more she could of lost safely if that is the right word. had a bleed after told only to take back to hospital if had more than two bleeds in 24 hours. thanks very worried mum


Answers: Hi my child had a tosiliectomy and had complications had to have the surgery again after 5 days due to vomiting blood, they messured how much was lost in hopital and it was 300mls in 2 hours, then stopped. Had to sign transfussion form. Please can anyone tell me how much more she could of lost safely if that is the right word. had a bleed after told only to take back to hospital if had more than two bleeds in 24 hours. thanks very worried mum

This calculates at around 30.54% of circulating blood volume, at 80ml/Kg which is significant.

See table below.

* Class I Hemorrhage involves up to 15% of blood volume. There is typically no change in vital signs and fluid resuscitation is not usually necessary.
* Class II Hemorrhage involves 15-30% of total blood volume. A patient is often tachycardic (rapid heart beat) with a narrowing of the difference between the systolic and diastolic blood pressures. The body attempts to compensate with peripheral vasoconstriction. Skin may start to look pale and be cool to the touch. The patient might start acting differently. Volume resuscitation with crystaloids (Saline solution or Lactated Ringer's solution) is all that is typically required. Blood transfusion is not typically required.
* Class III Hemorrhage involves loss of 30-40% of circulating blood volume. The patient's blood pressure drops, the heart rate increases, peripheral perfusion, such as capillary refill worsens, and the mental status worsens. Fluid resuscitation with crystaloid and blood transfusion are usually necessary.
* Class IV Hemorrhage involves loss of >40% of circulating blood volume. The limit of the body's compensation is reached and aggressive resuscitation is required to prevent death.

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