VWFMP - Overview: von Willebrand Factor Multimer Analysis, Plasma

As a reflex component of several coagulation consultation unit codes, when indicated When results of complementary laboratory tests are abnormally low or discordant (eg, F8A / Coagulation Factor VIII Activity Assay, Plasma; VWACT / von...

VMA - Overview: Vanillylmandelic Acid, 24 Hour, Urine

Screening children for catecholamine-secreting tumors using a 24-hour urine collection when requesting testing for vanillylmandelic acid only Supporting a diagnosis of neuroblastoma Monitoring patients with a treated neuroblastoma

VORI - Overview: Voriconazole, Serum

Monitoring trough levels of voriconazole is suggested for: -Individuals with reduced liver function -Individuals with cytochrome P450 (CYP) 2C19 alterations associated with poor metabolic function -Patients taking other medications that...

VIBC - Overview: Vibrio Culture, Feces

Determining whether Vibrio species may be the cause of diarrhea This test is generally not useful for patients that have been hospitalized for more than 3 days because the yield from these patients' specimens is very low, as is the...

FNSVG - Overview: Vaginitis (VG), NuSwab

Used to detect the presence of Candida albicans and Candida glabrata DNA in vaginal samples as an aid to the diagnosis of vulvovaginal candidiasis in symptomatic women. Also used in the diagnosis of Trichomonas vaginalis infections.

VITK1 - Overview: Vitamin K1, Serum

Assessment of circulating vitamin K1 concentration.

VIPI - Overview: Vasoactive Intestine Polypeptide (VIP), Technical Component Only

Aiding in the identification of islet cell tumors

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...

VLTS - Overview: Volatile Screen, Serum

Detection and quantitation of acetone, methanol, isopropanol, and ethanol in serum Quantification of the concentration of ethanol in serum correlates with degree of intoxication Evaluation of toxicity to the measured volatile substances

B6PRO - Overview: Vitamin B6 Profile (Pyridoxal 5-Phosphate and Pyridoxic Acid), Plasma

Determining vitamin B6 status, including in persons who present with progressive nerve compression disorders, such as carpal tunnel and tarsal tunnel syndromes Determining the overall success of a vitamin B6 supplementation program...