What is the purpose of this test?
The Prealbumin Blood Test measures the level of prealbumin, a protein made by the liver, in your blood. Prealbumin plays an important role in carrying thyroid hormones and vitamin A throughout the body. More importantly, it is a sensitive marker of nutritional status and is often used to evaluate how well your body is absorbing and using protein. Because prealbumin levels change quickly in response to diet and illness, this test is particularly useful for monitoring short-term changes in nutrition, especially in people who are ill, hospitalized, or undergoing treatment for chronic conditions.
Low levels of prealbumin may suggest malnutrition, liver disease, or inflammation, while high levels can indicate certain conditions like kidney disorders or steroid use. Healthcare providers frequently use this test to assess patients recovering from surgery, trauma, or illness, especially when nutritional support like feeding tubes or intravenous (IV) nutrition is involved. By tracking prealbumin levels over time, providers can adjust treatment plans and nutritional support strategies to help patients heal faster and regain strength. The Prealbumin Blood Test is also used in evaluating people with conditions such as cancer, gastrointestinal diseases, or eating disorders.
Who should get this test?
The Prealbumin Blood Test may be helpful for individuals who:
- Are receiving treatment for or recovering from serious illness, injury, or surgery
- Have chronic diseases that affect nutrient absorption, such as Crohn’s disease or celiac disease
- Are undergoing nutrition therapy and need close monitoring
- Have signs of malnutrition like unexplained weight loss, fatigue, or poor wound healing
- Are receiving parenteral or enteral nutrition (IV feeding or tube feeding)
- Have liver disease or other conditions that may impair protein production
- Are experiencing eating disorders or struggling with proper nutrient intake
When should I order the Prealbumin Blood Test?
Individuals may consider ordering this test if they have symptoms or exposure concerns related to poor nutrition or malabsorption.
Symptoms to consider:
- Unexplained weight loss or loss of appetite
- Slow-healing wounds or frequent infections
- Fatigue, weakness, or low energy levels
- Swelling in the legs, feet, or abdomen
- Thin or brittle hair and nails
- Changes in skin texture or tone
If you have these symptoms or are at risk of malnutrition or nutrient deficiencies, the Prealbumin Blood Test can provide valuable information to guide you and your doctor in improving your nutritional health and preventing complications.
LC Sample ReportQD Sample ReportTest Code(s):
016931, 4847
Also Known As: Transthyretin; Thyroxine-Binding Prealbumin; Tryptophan-Rich Prealbumin
Preparation:No special preparation is required.
Test Results:
1-2 days. May take longer based on weather, holiday, or lab delays.