RUFI - Overview: Rufinamide, Serum

Monitoring serum rufinamide concentrations, assessing compliance, and adjusting dosage in patients receiving other drugs that interact pharmacokinetically with rufinamide (ie, drugs that induce liver CYP3A4 enzymes) and may be helpful in...

RYEG - Overview: Rye Grass, IgE, Serum

Establishing a diagnosis of an allergy to rye grass Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or anaphylactic episode -To confirm sensitization prior...

REDT - Overview: Red Top, IgE, Serum

Establishing a diagnosis of an allergy to red top Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or anaphylactic episode -To confirm sensitization prior...

VITB2 - Overview: Riboflavin (Vitamin B2), Plasma

Evaluation of individuals who present the signs of ariboflavinosis

RPCWT - Overview: Renal Pathology Consultation, Wet Tissue

Evaluating and managing patients with kidney disease Following the progression of known kidney disease or response to therapy Determining the cause of dysfunction in the transplanted kidney (allograft)

RBCS - Overview: Relative B-Cell Subset Analysis Percentage, Blood

Screening for humoral or combined immunodeficiencies, including common variable immunodeficiency, hyper IgM syndrome, among others, where B-cell subset distribution information is desired Assessing B-cell subset reconstitution after...

RTIC - Overview: Reticulocytes, Blood

Assessing erythropoietic bone marrow activity in anemia and other hematologic conditions

RAVMP - Overview: Ravulizumab Monitoring Panel, Serum

Monitoring of complement blockage by ravulizumab Assessing the response to ravulizumab therapy Assessing the need for dose escalation Evaluating the potential for dose deescalation or discontinuation of therapy in remission...

FRFIT - Overview: Rabies Antibody Endpoint

Rabies Antibody Endpoint

RPRS - Overview: Rapid Plasma Reagin Screen with Reflex, Serum

Aiding in the diagnosis of recent or past Treponema pallidum infection Rapid plasma reagin screening when T pallidum antibody screen is positive This test is not useful as a screening or confirmatory test for blood donor specimens.