F5DNA - Overview: Factor V Leiden (R506Q) Mutation, Blood

Patients with clinically suspected thrombophilia and: 1. Activated protein C (APC)-resistance either proven or suspected by a low or borderline APC-resistance ratio or 2. A family history of factor V Leiden

APROL - Overview: Prolonged Clot Time Profile, Plasma

Determining the cause of prolongation of prothrombin time or activated partial thromboplastin time Screening for prolonged clotting times and determining the presence of factor deficiencies or inhibitor (eg, factor-specific, lupus-like,...

PD2T - Overview: Pompe Disease Second-Tier Newborn Screening, Blood Spot

Second-tier testing of newborns with an abnormal primary screening result for Pompe disease (decreased acid alpha-glucosidase enzyme activity) Follow-up testing for evaluation of an abnormal newborn screening result for Pompe disease

VWD8B - Overview: von Willebrand Disease 2N (Subtype Normandy), Plasma

Diagnosing von Willebrand disease (VWD) type 2N Evaluating patients diagnosed with mild-to-moderate hemophilia A with an autosomal inheritance pattern Evaluating hemophilia A patients with a shortened survival of infused factor VIII...

DPYDZ - Overview: Dihydropyrimidine Dehydrogenase, DPYD Full Gene Sequencing, Varies

Identifying individuals at increased risk of toxicity when considering 5-fluorouracil and capecitabine chemotherapy treatment Identifying common and rare variants associated with decreased or absent dihydropyrimidine dehydrogenase (DPD)...

HEXLA - Overview: Hexagonal Lupus Anticoagulant, Plasma

Confirming or excluding the presence of a lupus anticoagulant (LA), in conjunction with other appropriate coagulation tests Differentiating between deficiencies or inhibitors of specific coagulation factors and LA inhibitors Evaluating a...

VWFMS - Overview: von Willebrand Factor Multimer Analysis, Plasma

Resolving discrepancies when results of complementary laboratory tests (eg, F8A / Coagulation Factor VIII Activity Assay, Plasma; VWACT / von Willebrand Factor Activity, Plasma; and VWAG / von Willebrand Factor Antigen, Plasma) are...

GALCR - Overview: Galactocerebrosidase Reflex, Leukocytes

Diagnosis of Krabbe disease as a confirmatory reflex of the six-enzyme panel Follow-up testing for evaluation of an abnormal newborn screening result for Krabbe disease This test is not recommended for carrier detection because of the...

DRV3 - Overview: Dilute Russell's Viper Venom Time (DRVVT) Confirmation, Plasma

Confirming the presence or absence of lupus anticoagulants (LA) Identifying LA that do not prolong the activated partial thromboplastin time (APTT) Evaluating unexplained prolongation of the APTT or prothrombin time clotting tests...

PKLRZ - Overview: PKLR Full Gene Analysis, Varies

Aiding in the diagnosis of pyruvate kinase (PK) deficiency Ascertaining a causative variant in the PKLR gene of patients with low or relatively low levels of erythrocytic PK enzymatic activity Ascertaining carrier status of family members...