Test List > Test List – V

Test List – V

VALIUM SEE DIAZEPAM STRUCTURE

VALPROIC ACID (PROPYLVALERIC ACID)
REQUIREMENT: 1 ml serum FROZEN
REF. RANGE: 50-100 µg/mL
METHOD: CLIA
SET-UP: daily
RESULTS READY: same day

VANADIUM
REQUIREMENT: 5 ml serum or 10 ml urine
REF. RANGE:
serum: <1.1 µg/L
urine: <1.0 µg/L
METHOD:
Serum: AAS
Urine: ICPS
SET-UP: weekly
RESULTS READY: two weeks later

VANCOMYCIN
REQUIREMENT: 1 ml serum
REF. RANGE: therapeutic range:
min.: 5-10 µg/mL
max.: 20-40 µg/mL
METHOD: CMIA
SET-UP: daily
RESULTS READY: same day

VANILLYLMANDELIC ACID SEE VMA

VARICELLA ZOSTER DNA
REQUIREMENT: 1 ml csf, swab
REF. RANGE: not detectable
Limit of detection: 100 copies/mL
METHOD: PCR
SET-UP: once weekly
RESULTS READY: two days later

VARICELLA ZOSTER VIRUS ABS (IgA, IgG, IgM)
REQUIREMENT: 1 ml serum
REF. RANGE:
VALIUM SEE DIAZEPAM STRUCTURE

VALPROIC ACID (PROPYLVALERIC ACID)
REQUIREMENT: 1 ml serum FROZEN
REF. RANGE: 50-100 µg/mL
METHOD: CLIA
SET-UP: daily
RESULTS READY: same day

VANADIUM
REQUIREMENT: 5 ml serum or 10 ml urine
REF. RANGE:
serum: <1.1 µg/L
urine: <1.0 µg/L
METHOD:
Serum: AAS
Urine: ICPS
SET-UP: weekly
RESULTS READY: two weeks later

VANCOMYCIN
REQUIREMENT: 1 ml serum
REF. RANGE: therapeutic range:
min.: 5-10 µg/mL
max.: 20-40 µg/mL
METHOD: CMIA
SET-UP: daily
RESULTS READY: same day

VANILLYLMANDELIC ACID SEE VMA

VARICELLA ZOSTER DNA
REQUIREMENT: 1 ml csf, swab
REF. RANGE: not detectable
Limit of detection: 100 copies/mL
METHOD: PCR
SET-UP: once weekly
RESULTS READY: two days later

VARICELLA ZOSTER VIRUS ABS (IgA, IgG, IgM)
REQUIREMENT: 1 ml serum
REF. RANGE:
IgA:
11 U – abs detectable
AU = Arbitrary unit
IgG:
<50 U/mL – abs not detectable
150 U/mL – Immunity probable
IgM: not detectable
Interpretation on report
METHOD: EIA
SET-UP: daily, except Mondays
RESULTS READY: same day

VASCULAR ABS
REQUIREMENT: 1 ml serum
REF. RANGE: not detectable
METHOD: indirect IF
SET-UP: once weekly
RESULTS READY: same day

VASOPRESSIN SEE ADH

VDRL
REQUIREMENT: 1 ml serum
REF. RANGE: <1:1 titer – negative
METHOD: Agglutination
SET-UP: Tuesdays, Thursdays, Fridays
RESULTS READY: same day

VENLAFAXINE/
O-DESMETHYL-VENLAFAXINE
REQUIREMENT: 1 ml serum
REF. RANGE:
therapeutic range:
Venlafaxine: 30–175 ng/mL
O-Desmethyl-Venlafaxin: 195-400 µg/L
METHOD: LC-MS
SET-UP: three times weekly
RESULTS READY: same day
NOTE: These tests are always performed together

VERAPAMIL
REQUIREMENT: 2 ml serum
REF. RANGE: therapeutic range: 50-350 ng/mL
METHOD: HPLC
SET-UP: once weekly
RESULTS READY: two days later

VERY LONG CHAIN FATTY ACIDS
REQUIREMENT: 1.5 – 2 ml serum
REF. RANGE:
Fatty acid C22:
26.5-110.0 µmol/L
Fatty acid C24:
24.9-90.0 µmol/L
Fatty acid C26:
0.2-1.6 µmol/L
C24/C22 ratio:
<0.95 ratio
C26/C22 ratio:
<0.02 ratio
Phytanic acid:
0-10 µmol/L
Pristanic acid:
0-3 µmol/L
Interpretation: see report
SET-UP: once weekly
RESULTS READY: one–two weeks later
NOTE: Specimen must be taken under fasting conditions and the person taking the blood and patient should not use hand cream of any sort. Quote patient’s race, sex and age and whether samples are from relatives of patients with adrenoleukodystrophy/
adrenomyeloneuropathy or from patients with these diseases who are being treated with Lorenzo’s Oil. It is imperative that clinical data and date of birth (not just age) is always quoted.

VIGABATRIN
REQUIREMENT: 1 ml serum
REF. RANGE: 2-15 mg/L
METHOD: LC-MS/MS
SET-UP: three times weekly
RESULTS READY: same day

VIP (VASOACTIVE INTESTINAL POLYPEPTIDE)
REQUIREMENT: 2 ml FROZEN EDTA plasma in an Aprotinin tube
REF. RANGE: <63 pg/mL
METHOD: RIA
SET-UP: once weekly
RESULTS READY: two days
NOTE: Always send a separate sample for this test.

VIRAL SCREEN
REQUIREMENT: 4 ml serum
This panel includes:
Influenza A+B (CF)
Mycoplasma (CF)
Adeno virus (CF)
Mumps IgG and IgM
Q-fever
Measles IgG and IgM
See report for normal values
SET-UP: daily
RESULTS READY: within one week

VISCOSITY
REQUIREMENT: 1 ml EDTA plasma
REF. RANGE: 1.6-2.0 mPa*s
METHOD: manual
SET-UP: once weekly
RESULTS READY: two days later

VITAMIN A (RETINOL)
REQUIREMENT: 1 ml serum (protect from light)
REF. RANGE: 200-1200 µg/L
METHOD: HPLC
SET-UP: twice weekly
RESULTS READY: next day

VITAMIN B1 (THIAMINE)
REQUIREMENT: 5 ml FROZEN EDTA blood
REF. RANGE: 28-85 µg/L
METHOD: HPLC
SET-UP: twice weekly
RESULTS READY: next day

VITAMIN B2 (FAD)
REQUIREMENT: 2-5 ml EDTA blood; protect from light, keep at room temperature
REF. RANGE: 180-295 µg/L
METHOD: HPLC
SET-UP: once weekly
RESULTS READY: same day

VITAMIN B5 (PANTOTHENIC ACID)
REQUIREMENT: 1 ml serum
REF. RANGE: 25-80 µg/L
Determination of free pantothenic acid
METHOD: LC-MS
SET-UP: once weekly
RESULTS READY: two days later

VITAMIN B6 (PYRIDOXAL PHOSPHATE)
REQUIREMENT: 3 ml EDTA plasma, FROZEN, light protected or freeze
REF. RANGE: 3.6-18.0 ng/mL
METHOD: HPLC
SET-UP: three times weekly
RESULTS READY: next day

VITAMIN B12 (CYANOCOBALAMINE)
REQUIREMENT: 3 ml serum FROZEN, please protect from light
REF. RANGE: 211 – 911 pg/mL
METHOD: CLIA
SET-UP: daily
RESULTS READY: same day
NOTE: The analysis of vitamin B12 has a limited specificity and sensitivity for the determination of vitamin B12 hypovitaminosis, especially at concentrations below 300 pg/mL. Clinical signs of vitamin B12 deficiency may also be seen in patients with vitamin B 12 serum values in the lower reference range, and who also have increased methymalonic acid values as a metabolic sign of an existing intracellular vitamin B 12 deficiency.
Therefore, in cases of patients with vitamin B 12 levels below 300 pg/mL, we suggest the analysis of methymalonic acid in serum. A normal homocysteine level also virtually rules out a metabolic vitamin B12 as well as folic aid deficiency.

VITAMIN C (ASCORBIC ACID)
REQUIREMENT: 1 ml FROZEN Lithium heparin plasma
REF. RANGE: 5.0-15.0 mg/L
METHOD: HPLC
SET-UP: once weekly
RESULTS READY: same day

VITAMIN D (1,25 DIHYDROXYCHOLICALCIFEROL)
REQUIREMENT: 3 ml serum; freeze and SEND FROZEN
REF. RANGE: 25,0- 86,5 pg/mL
METHOD: CLIA
SET-UP: Monday through Thursday
RESULTS READY: next day

VITAMIN D (25-HYDROXY-CHOLECALCIFEROL)
REQUIREMENT: 1 ml serum
REF. RANGE: 20-70 ng/mL
METHOD: CLIA
SET-UP: daily
RESULTS READY: same day

VITAMIN E (ALPHA TOCOPHEROL)
REQUIREMENT: 1 ml serum
REF. RANGE: 5-18 µg/mL
METHOD: HPLC
SET-UP: twice weekly
RESULTS READY: next day

VITAMIN H SEE BIOTIN

VITAMIN K 1
REQUIREMENT: 2 ml serum, protect from light
REF. RANGE: 130-1190 ng/L
METHOD: HPLC
SET-UP: once weekly
RESULTS READY: two days later
NOTE: Always send a separate sample for this test

VITAMIN PP SEE NICOTINAMIDE

VLDL CHOLESTEROL (P,S)
REQUIREMENT: 1 ml serum, SEND IMMEDIATELY
REF. RANGE: <30 mg/dL
METHOD: calculation
SET-UP: daily
RESULTS READY: same day

VMA
REQUIREMENT: 2 x 10 ml 24h urine. Immediately after collection, mix the 24h urine well. Please state 24h urine volume. Prepare the shipping tube to contain 0.5 ml of 25% hydrochloric acid, fill tube with urine and mix well. Ensure pH value between 2-4. Do not use acetic acid or boric acid. Catecholamines, Homovanillic acid and Metanephrines can also be performed in these specimens.
Diet: It is recommended that the patient has no intake for 2 days prior to urine sampling of the following: nuts, citrus fruits plus no cocoa, coffee or vanilla-containing products.
Medication: If clinical condition allows it is also recommended that the patient stops taking catecholamines (epinephrine, norepinephrine, dopamine), MAO-inhibitors or catecholamine-reuptake inhibitors at least 2 days prior to sampling.
REF. RANGE:
0-1 year: 2.3 mg/24h
2-4 years: 3.0 mg/24h
5-9 years: 3.5 mg/24h
10-19 years: 6.0 mg/24h
>19 years: 6.8 mg/24h
METHOD: HPLC
SET-UP: daily
RESULTS READY: next day

VON WILLEBRAND FACTOR DIAGNOSIS

If only the “von Willebrand Diagnosis” is written the factor VIII activity, VWF:Ag (factor VIII associated antigen) and VWF:RCo (ristocetin cofactor acitivity) will be performed and charged for.

VON WILLEBRAND FACTOR Antigen, VWF: AG (FACTOR VIII ASSOCIATED ANTIGEN)
REQUIREMENT: 1 ml citrate plasma, FROZEN
REF. RANGE FOR ADULTS: 50-160%
METHOD: BCT
SET-UP: Fridays
RESULTS READY: same day
NOTE: Always send a separate sample for this test
NOTE: For children this test is reported age-related. Please quote dob.

VON WILLEBRAND RISTOCETIN COFACTOR ACITIVITY, VWF: RCO
REQUIREMENT: 1 ml citrate plasma, FROZEN
REF. RANGE: 58-172%
METHOD: coaglumetric
SET-UP: Fridays
RESULTS READY: same day
NOTE: Always send a separate sample for this test

VON WILLEBRAND FACTOR
If only this is written, factor VIII activity, factor VIII associated antigen and factor VIII ristocetin cofactor will be performed and charged for.

VORICONAZOLE
REQUIREMENT: 2 ml serum
REF. RANGE:
Therapeutic range: 1.2-4.7 mg/L
METHOD: LC-MS/MS
SET-UP: once weekly
RESULTS READY: next day

vWF: AG SEE FACTOR VIII ASSOCIATED ANTIGEN (VON WILLEBRAND FACTOR)

vWF:RCo (RISTOCETIN COFACTOR) SEE FACTOR VIII RISTOCETIN COFACTOR (VON WILLEBRAND FACTOR)

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