Dialysis Technician Practice Exam

What is the normal lab value for Albumin?

1. 3.0-4.0 g/dL

2. 4.0-5.0 g/dL

3. 4.5-5.5 g/dL

4. >4.0 g/dL

The correct answer is: >4.0 g/dL

The normal laboratory value for albumin typically falls between 3.5 to 5.0 g/dL, with many sources commonly recognizing 4.0 to 5.0 g/dL as the standard range. The acceptable result of greater than 4.0 g/dL indicates a desirable concentration of albumin in the bloodstream, essential for maintaining oncotic pressure and adequate circulation of fluids within the body. Elevated levels may be observed in certain physiological conditions, but a reading above 4.0 g/dL is often preferred in a healthy individual. Understanding the broader context of albumin's role in the body can clarify why the threshold of greater than 4.0 g/dL is relevant. Albumin is a crucial protein synthesized by the liver that helps transport hormones, drugs, and other substances in the blood, as well as buffering pH and maintaining fluid balance in blood vessels. A reading below the normal range may suggest conditions such as liver disease, kidney disease, or malnutrition, emphasizing the importance of maintaining appropriate albumin levels for overall health.