Indeed, there is a wide variation in practice, not only regarding precisely what is transfused and how much but also regarding whether a transfusion is administered at all.
Sebenarnya, prakteknya sangat bervariasi, bukan hanya mengenai apa persisnya yang ditransfusikan dan seberapa banyak, melainkan juga mengenai perlu - tidaknya transfusi diberikan.