An albumin blood test measures the amount of albumin in your blood. Albumin is a protein

made by your liver. Albumin helps keep fluid in your bloodstream so it doesn't leak into

other tissues. It is also carries various substances throughout your body, including hormones,

vitamins, and enzymes. Low albumin levels can indicate a problem with your liver or

kidneys.The normal range is 3.4 to 5.4 g/dL (34 to 54 g/L).