Which method allows a patient to collect their own blood for future transfusion?

Predeposit autologous collection is the correct method that enables a patient to collect their own blood for future transfusion. This process involves the patient donating their blood before a surgical procedure, which can then be stored for use during or after the surgery. This approach not only reduces the risk of transfusion reactions by ensuring that the blood used is from the individual receiving it but also helps in managing the blood supply in cases where donors may not be readily available.

Intraoperative cell salvage, while a valuable technique, involves collecting blood lost during surgery and reinfusing it back to the patient during the same procedure. Acute normovolaemic haemodilution is a method that involves diluting a patient’s blood with a crystalloid or colloid solution at the start of surgery to reduce blood loss, but it does not involve collecting the patient’s blood for later use. Postoperative cell salvage refers to the collection and reinfusion of blood lost after surgery, which is not the same as the patient collecting their blood beforehand for future transfusion.