Test Index - V

Vanillylmandelic acid     see VMA

Varicella-zoster virus (VZV)     see

 - VZV (varicella-zoster virus) serology

 - diagnostic virology: meningitis/encephalitis, eye infection molecular detection and vesicular rash,

 - screening/ immunity/ follow-up which includes VZV serology in specific patient groups.

Vasectomy check    see post-vasectomy check

Vasoactive Intestinal Polypeptide (VIP)     see gut hormones

Very long chain fatty acids     see VLCFA

Vimpat     see lacosamide

Virology and serology tests - click here, or use A to Z index or search function to look up tests individually.

Viscosity    see plasma viscosity

Vitamin B₁ (thiamine)

Vitamin B₂ (riboflavin)

Vitamin B₆ (pyridoxal phosphate)

Vitamin B₁₂   see B₁₂

Vitamin D

1,25-dihydroxyvitamin D(rarely indicated)

for ?deficiency/toxicity measure total 25OH vitamin D (detects D2 and D3 forms).

VMA (HMMA, vanillylmandelic acid)

Voltage gated calcium channel (VGCC) antibody     see calcium channel antibody

Voltage gated K channel (VGKC) antibody    see LGI1 and CASPR2 antibodies (first line investigation). Potassium channel antibody available by special request.

VZV     see varicella-zoster virus