Vanillylmandelic acid see VMA
- 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
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