IFBA - Overview: Intrinsic Factor Blocking Antibody, Serum
Confirming the diagnosis of pernicious anemia
PBALP - Overview: Porphobilinogen and Aminolevulinic Acid, Plasma
An equivalent option to urine for first-line test for evaluation of a suspected acute porphyria Monitoring patients undergoing treatment for an acute intermittent porphyria or other acute porphyria
7AC4 - Overview: 7AC4, Bile Acid Synthesis, Serum
Screening for bile acid malabsorption in patients with irritable bowel syndrome with diarrhea
GSH - Overview: Glutathione, Blood
Evaluation of neonatal hyperbilirubinemia, favism or chronic or episodic hemolysis or jaundice Evaluation for gamma-glutamylcysteine synthetase deficiency Evaluation for glutathione synthetase deficiency causing hemolytic anemia...
WAGDR - Overview: Alpha Globin Cluster Locus Deletion/Duplication, Blood
Diagnosis of alpha-thalassemia Carrier screening for individuals from high-risk populations for alpha-thalassemia This test is not useful for diagnosis or confirmation of beta-thalassemia or hemoglobinopathies.
JAK2B - Overview: JAK2 V617F Mutation Detection, Blood
Aiding in the distinction between a reactive blood cytosis and a chronic myeloproliferative disorder using peripheral blood specimens
BTDZ - Overview: Biotinidase Deficiency, BTD Full Gene Analysis, Varies
Second-tier test for confirming biotinidase deficiency (indicated by biochemical testing or newborn screening) Carrier testing of individuals with a family history of biotinidase deficiency, but disease-causing mutations have not been...
ARSBW - Overview: Arylsulfatase B, Leukocytes
Supporting the biochemical diagnosis of mucopolysaccharidosis type VI (MPS VI, Maroteaux-Lamy syndrome) in whole blood specimens This test is not useful for carrier detection.
TPBF - Overview: Protein, Total, Body Fluid
Identification of exudative pleural effusions Differentiating hepatic from other causes of ascites that have elevated serum ascites albumin gradient using peritoneal fluid
VWAG - Overview: von Willebrand Factor Antigen, Plasma
Diagnosis of von Willebrand disease (VWD) and differentiation of VWD subtype (in conjunction with von Willebrand factor ristocetin cofactor activity and factor VIII coagulant activity) Differentiation of VWD from hemophilia A (in...