NAS - Overview: Sodium, Serum

Assessing acid-base balance, water balance, water intoxication, and dehydration

PGKC - Overview: Phosphoglycerate Kinase Enzyme Activity, Blood

Evaluation of individuals with Coombs-negative nonspherocytic hemolytic anemia, especially if X-linked inheritance pattern. Evaluation of individuals with myopathic or neurologic symptoms

TP - Overview: Protein, Total, Serum

Diagnosis and treatment of a variety of diseases involving the liver, kidney, or bone marrow, as well as other metabolic or nutritional disorders

PINW - Overview: Pinworm Exam, Perianal

Detection of the eggs of Enterobius vermicularis on the skin of the perianal folds

RATO2 - Overview: Protein/Creatinine, Random, Urine

Calculation of total protein concentration per creatinine concentration

TLB - Overview: Thallium, Blood

Detecting toxic exposure in whole blood specimens

TRYPU - Overview: Tryptophan, Random, Urine

Aiding in the screening and monitoring of Hartnup disease

URAU - Overview: Urea, 24 Hour, Urine

Assessment of protein intake and/or nitrogen balance

MEV1 - Overview: Methemoglobinemia Evaluation, Blood

Diagnosis of methemoglobinemia and sulfhemoglobinemia and possible hereditary (congenital) causes Differentiation of methemoglobinemia and sulfhemoglobinemia from other causes of cyanosis (eg, congenital heart disease)

RAMBO - Overview: Ammonium, Random, Urine

Diagnosis of the cause of acidosis using random urine specimens Diagnosis and treatment of kidney stones