A patient with a disease of which organ will have low levels protein albumin?

The correct answer is Liver.

The liver is responsible for producing albumin, a protein that helps to maintain fluid balance in the body. When the liver is damaged, it cannot produce enough albumin, which can lead to low levels of albumin in the blood. This can cause a condition called hypoalbuminemia, which can lead to a number of health problems, including edema (swelling), fatigue, and malnutrition.