prealbumin test

GENERAL

Prealbumin (not to be confused with albumin) is an important marker for assessing protein deficiency. Prealbumin is produced in the liver, but is not affected by liver function unless function is extremely impaired. Biochemically, prealbumin has the function of transporting thyroid hormone. In addition, prealbumin also binds to retinol-binding protein (RBP), the main transport protein for free vitamin A.

In adults, prealbumin screening has been useful in assessing protein status in AIDS- or cancer-related cachexia, as well as nutritional status in nursing home residents.

In children, many parents have observed their children diagnosed with autism spectrum disorders showing symptoms of diarrhea, poor appetite or lack of weight gain, even if the child's appetite is good. This test efficiently measures protein deficiency because prealbumin levels are not affected by hydration (fluid intake) or renal (kidney) function.

SPECIMEN REQUIREMENTS

Serum: 1 mL of serum in a gold-topped SST or royal blue-topped no additive tube.

CPT CODES

  • 84134

THIS TEST IS ALSO KNOWN AS:

  • PRUEBA DE PREALBÚMINA
  • プレアルブミンテスト

  • اختبار سابق الألبومين

  • PRÄALBUMIN TEST

  • TEST DE PRÉALBUMINE
  • TEST PREALBUMINA

  • 프리 알부민 검사

  • TEST PREALBUMINĘ

  • TESTE DE PRÉ-ALBUMINA
  • PREALBÜMIN TESTI

  • 前白蛋白测试