Step 3 » GENERAL learning environment Category B (B, B1)

A victim who has lost a significant amount of blood has low blood pressure and must be positioned on the back, with the head lower than the trunk and with the legs raised by approximately 30 cm, to facilitate the circulation of blood toward the brain.

Hemorrhage represents the loss of blood from a blood vessel. The quantity of blood in the human body varies depending on factors such as age, sex and health condition. For example, men generally have more blood than women of the same height and weight. An adult with an average weight between 70 and 81 kg has around 4.7 - 5.5 liters of blood, while a child with a weight of 30 - 40 kg has approximately half of this quantity.

The severity of a hemorrhage is determined by the quantity of blood lost, as follows:

• small (loss of up to 500 ml of blood);
• medium or moderate (loss of approximately 1/3 of the total quantity of blood);
• large (loss of nearly half of the blood volume);
• lethal (loss of over half of the quantity of blood).

The correct answer is: C

Recommendations:

First aid course --> First aid course