Prealbumin (Transthyretin) Test

Prealbumin, formally known as Transthyretin, is a hormone produced by the liver. Secreted into the bloodstream, Prealbumin carries thyroxine and is responsible for regulating metabolism, which is the use of energy in the body. The test is recommended by doctors mainly to assess malnutrition and the level of proteins in the bloodstream. The test is usually assigned to a patient who has undergone trauma, lost a lot of weight, or suffers from a chronic illness.

No special preparation is required. Inform your doctor about any prescribed medications the patient is taking. Also, inform the doctor if the patient is pregnant. For the blood sample collection, it is recommended to wear short sleeved shirts. There is normally no restriction on the patient's diet. However, any instructions from the lab are to be followed.

The test results are typically available within 2-4 days. The blood sample is tested for levels of Prealbumin. The results are interpreted as follows: Low levels of Prealbumin can indicate: Malnutrition, Trauma , Inflammation, Chronic illness, Liver disease

High levels of Prealbumin is mainly an indication of: Kidney problems, Pregnancy

An elastic band or piece of cloth may be tightly wound above the vein for easy collection of the blood sample, after which: The site will be cleaned using an alcohol swab. A sterile needle will be inserted at the site. About 2 ml blood will be drawn from the patient's arm. After collection, a cotton swab will be pressured on the site If required, the site will be bandaged.