V

Vaginosis/Vaginitis Panel (Trichomonas, Yeast and Gardnerella), Vaginal Swab

Valine

Amino Acids, Quantitative, Plasma

Amino Acids, Quantitative, Random Urine

Valium

Diazepam Drug Level, Serum

Valproic Acid Drug Level, Plasma

Valproic Acid, Free & Total Drug Level, Serum

See also: Valproic Acid Drug Level, Plasma

Vancomycin Drug Level, Plasma

Vancomycin Resistant Enterococci (VRE) Screen

VRE Screen by Culture, Perirectal Swab

Vanillylmandelic Acid, 24 hr Urine

See also: Catecholamines, Fractionated, 24 hr Urine

Homovanillic Acid, 24 hr Urine

Metanephrines Total, 24 hr Urine

Vanillylmandelic Acid, Random Urine

See also: Catecholamines, Fractionated, Random Urine

Homovanillic Acid, Random Urine

Metanephrines Total, Random Urine

Varicella Zoster IgG Detection, Plasma

Varicella Zoster Virus (VZV) PCR, Ocular Fluids, Aqueous Fluid or Vitreous Fluid

Varicella-Zoster Ab, IgM, CSF

Varicella-Zoster Antibody, IgM, Serum

Varicella-Zoster Virus PCR, Amniotic Fluid

See also: Cytomegalovirus (CMV) Qualitative by PCR, BAL or Amniotic Fluid

Herpes Simplex Virus PCR, Amniotic Fluid

Toxoplasma gondii PCR, Amniotic Fluid

Vascular Endothelial Growth Factor, Plasma

Vasoactive Intestinal Polypeptide, Plasma

Vasopressin

Vedolizumab Level and Anti-Vedolizumab Antibodies, Serum

VEGF-D Quantitation, Whole Blood

Venlafaxine Drug Level, Serum

Venous (Central) Blood Gas, Whole Blood (syringe only)

Venous (Central) Oxygen Saturation, Whole Blood (syringe only)

Venous (Peripheral) Blood Gas, Whole Blood (syringe only)

Venous (Peripheral) Oxygen Saturation, Whole Blood (syringe only)

Venous Blood Gas, ECMO, Pre-Oxygenator, Whole Blood (syringe only)

Ventricular Fluid Cells

Cell Count and Differential, CSF

VerifyNow

Aspirin Reactivity Units, Whole Blood

Platelet Reactivity Units (P2Y12), Whole Blood

VIP

Vasoactive Intestinal Polypeptide, Plasma

Viral & CMV Culture - Non-Respiratory, Urine, Eye Swab, Lesion, Tissue (brain, colon, kidney, liver, etc.),

Viral & CMV Culture - Respiratory, BAL, Nasopharyngeal Aspirate, Swab, or Washing, or Tracheal Aspirate, Sputum, Throat, Tissue (lung, etc.)

Viral Culture, Rectal Swab or Stool

Viscosity, Serum

Vitamin A, Serum

Vitamin B1, Whole Blood

Vitamin B12, Plasma

Vitamin B12, Reflexive, Serum

Vitamin B12/Folic Acid Deficiency

Homocysteine, Plasma

Methylmalonic Acid, Blood

Methylmalonic Acid, Urine (24 hr or random)

Vitamin B12, Plasma

Vitamin B12, Reflexive, Serum

Vitamin B6, Plasma

Vitamin B₂, Plasma

Vitamin C, Plasma

Vitamin D (1,25 Dihydroxy), Serum

See also: Vitamin D, 25-Hydroxy, Plasma

Vitamin D, 25-Hydroxy, Plasma

See also: Vitamin D (1,25 Dihydroxy), Serum

Vitamin E, Serum

Vitamin K, Serum

Voltage-Gated Calcium Channel Antibodies, Serum

See also: NMDA Receptor Antibodies, Serum

Paraneoplastic Autoantibodies, Serum

Voltage-Gated Potassium Channel Antibodies, Serum

Voltage-Gated Potassium Channel Antibodies, Serum

See also: NMDA Receptor Antibodies, Serum

Paraneoplastic Autoantibodies, Serum

Voltage-Gated Potassium Channel Antibodies, Serum

Von Willebrand Antigen Assay, Plasma

Von Willebrand Factor Activity (GPIbM) Assay, Plasma

Von Willebrand Multimeric, Plasma

See also: Von Willebrand Antigen Assay, Plasma

Voriconazole Antifungal Drug Level, Serum

VRE Screen by Culture, Perirectal Swab

VZV

Varicella Zoster IgG Detection, Plasma

VZV Qualitative PCR, Vesicle Fluid, Surface Swab