What was one method used to store blood for transfusions during World War I?

During World War I, the development of blood transfusion methods saw significant advancements, particularly with the need to provide medical care for soldiers. Storing blood in bottles on ice was a practical solution to extend the viability of donated blood, making it possible to preserve it for longer periods before use.

This technique relied on the colder temperatures to slow the degradation of the blood cells, which is crucial because fresh blood has a limited shelf life. By using ice, doctors were able to transport and store blood more effectively, enabling transfusions to occur in a timely manner during medical emergencies in the field.

Other methods, such as the use of glass jars, did not prove effective for blood storage, particularly due to the risks of contamination and the failure to maintain appropriate conditions for the preservation of blood. Keeping blood at room temperature is detrimental in a medical context, as it can lead to the rapid deterioration of blood cells and an increased risk of bacterial growth, making it an unsuitable option for transfusions. The assertion that no storage method was developed overlooks the essential innovations that took place during the war, particularly the use of ice to extend the usability of blood for transfusions.