Valproic acid (VPA, valproate), an acidic chemical compound, has found clinical use as an anticonvulsant and mood-stabilizing drug, primarily in the treatment of epilepsy, bipolar disorder and prevention of migraine headaches.

Specimen: Serum

Reference Values: Therapeutic Range: 346-700 umol/l

Method: CLIA

Loinc: 4086-5

Vancomycin is an antibiotic drug used to treat serious, life-threatening infections by gram-positive bacteria that are resistant to less-toxic agents.

Specimen: Serum

Reference Values:

Method:

Loinc: 20578-1

Varicella zoster virus or varicella-zoster virus (VZV) is one of eight herpesviruses known to infect humans and vertebrates. VZV only affects humans, and commonly causes chickenpox in children, teens and young adults and herpes zoster (shingles) in adults and rarely in children.

Specimen: 0.2 ml Serum

Reference Values:

Negative: <0.8
Equivocal: 0.8-1.2
Positive: >1.2

Method: CLIA

Loinc: 41512-5

Varicella zoster virus or varicella-zoster virus (VZV) is one of eight herpesviruses known to infect humans and vertebrates. VZV only affects humans, and commonly causes chickenpox in children, teens and young adults and herpes zoster (shingles) in adults and rarely in children.

Specimen: 0.2 ml Serum

Reference Values:

Negative: <0.8
Equivocal: 0.8-1.2
Positive: >1.2

Method: CLIA

Loinc: 41512-5

The VDRL is a nontreponemal serological screening for syphilis that is also used to assess response to therapy, to detect central nervous system involvement, and as an aid in the diagnosis of congenital syphilis. The basis of the test is that an antibody produced by a patient with syphilis reacts with an extract of ox heart (diphosphatidyl glycerol).

Specimen: Serum

Method: CLIA

Loinc: 5292-8

Retinol is produced in the body from the hydrolysis of retinyl esters, and from the reduction of retinal. Retinol in turn is ingested in a precursor form , animal sources (liver and eggs) contain retinyl esters, whereas plants (carrots, spinach) contain provitamin A carotenoids (these may also be considered simply vitamin A).

Specimen: Serum

Loinc: 14905-4

Vitamin B12, like the other B vitamins, is important for metabolism. It helps in the formation of red blood cells and in the maintenance of the central nervous system.

Specimen: Serum

Method: CLIA

Loinc: 2132-9

The 25-hydroxy vitamin D test is the best way to monitor vitamin D levels. The test can determine if your body has a deficiency or excess of vitamin D. It serves as an important indicator of osteoporosis (bone weakness), rickets (bone malformation), and an unusual metabolism of calcium. The test is also referred to as the 25-OH vitamin D test and the calcidiol 25-hydroxycholecalcifoerol test.

Specimen: Serum

Reference Values:

Sufficiency/Optimal Levels: 30-100 ng/ml
Insufficiency: 20-29 ng/ml
Deficiency: <20 ng/ml
Potential Toxicity: >100 ng/ml

Method: CLIA

Loinc: 2236-8