NARC - Overview: Narcolepsy-Associated Antigen, HLA-DQB1 Typing, Blood

Ruling out a diagnosis of narcolepsy

NCDTC - Overview: Neurochondrin Antibody, Tissue Immunofluorescence Titer, Spinal Fluid

Detecting neurochondrin-IgG in spinal fluid (CSF) from patients presenting with cerebellar and brainstem syndrome Reporting an end titer result from CSF specimens

NBILI - Overview: Neonatal Bilirubin, Serum

Assessing liver function Evaluating a wide range of diseases affecting the production, uptake, storage, metabolism, or excretion of bilirubin Monitoring the efficacy of neonatal phototherapy

NOTRP - Overview: Nortriptyline, Serum

Monitoring nortriptyline concentration during therapy Evaluating potential nortriptyline toxicity May aid in evaluating patient compliance

OCTO - Overview: Octopus, IgE, Serum

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

ONIN - Overview: Onion, IgE, Serum

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

OAU - Overview: Organic Acids Screen, Random, Urine

Diagnosis of inborn errors of metabolism

FOVAS - Overview: Ovarian Antibody Screen with Reflex to Titer, IFA

Ovarian Antibody Screen with Reflex to Titer, IFA

OROT - Overview: Orotic Acid, Random, Urine

Evaluation of the differential diagnosis of hyperammonemia and hereditary orotic aciduria Sensitive indicator of ornithine transcarbamylase (OTC) activity after administration of allopurinol or a protein load to identify OTC carriers

OLIGU - Overview: Oligosaccharide Screen, Random, Urine

Screening for selected oligosaccharidosis