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257
VON WILLEBRAND FACTOR (ANTIGENIC), PLASMA
Method:
Immunoturbidimetry.
Mounting:
Delivery period:5
Sample:
1 mL Plasma Sodium Citrate (-8 ºC - Freeze)
Sample extraction:
Add 1 volume of sodium citrate 3.80% for every 9 volumes of blood.
Centrifuge.
Separate plasma.
Freeze specimen immediately.
Reference V.:
50.00 - 160.00 % * 0.01 = KU/L
576
VLDL CHOLESTEROL, SERUM
Method:
Calculation
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Heparin lithium (2-8 ºC - Refrigerate)
Reference V.:
Colesterol VLDL:
0.10 - 0.90 mmol/L * 38.6 = mg/dL
Review:
12/04/2007
878
VERY LONG CHAIN FATTY ACIDS, SERUM
Method:
Gas Chromatography.
Mounting:
Delivery period:10
Sample:
1 mL Serum (-8 ºC - Freeze)
Sample extraction:
Separate serum as soon as possible.
Freeze specimen immediately.
Reference V.:
< 91.26 umol/L * 0.36863 = ug/mL
< 96.13 umol/L * 0.34058 = ug/mL
C26:
O: 0.22 - 0.88 umol/L * 0.396 = ug/mL
Indice C24:
O/C22:O.
Indice C26:
O/C22:O.
Review:
16/11/2014
886
VITAMIN B1 (THIAMINE PYROPHOSPHATE), BLOOD
Method:
High efficiency liquid chromatography - Fluorimetry.
Mounting:
Delivery period:6
Sample:
3 mL Total blood Tripotassium EDTA (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
66.50 - 200.00 nmol/L * 0.042427 = ug/dL
Review:
20/10/2011
889
VITAMIN B3 (NICOTINAMIDE), SERUM
Method:
High efficiency liquid chromatography - Mass spectrometry.
Mounting:
Delivery period:12
Sample:
3 mL Serum (-8 ºC - Freeze)
Sample extraction:
Freeze specimen immediately.
Therapeutic R.:
10.00 - 100.00 ug/L
Review:
02/04/2009
893
VITAMIN H (BIOTIN), SERUM
Method:
Enzyme-Linked Immunoassay.
Mounting:
Delivery period:7
Sample:
1 mL Serum (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
Normal level: 0.41 - 1.03 nmol/L * 243.9 = ng/L
Optimal levels:
> 1.03 nmol/L * 243.9 = ng/L
Low level:
< 0.41 nmol/L * 243.9 = ng/L
Review:
12/11/2014
894
VITAMIN B12, SERUM
Method:
Immunochemiluminiscence.
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
Reference V.:
138.00 - 652.00 pmol/L * 1.35685 = pg/mL
Review:
09/04/2013
895
VITAMIN K-1 (PHYLOQUINONE), SERUM
Method:
High efficiency liquid chromatography - Fluorimetry.
Mounting:
Delivery period:7
Sample:
1.5 mL Serum (-8 ºC - Freeze)
Alt. 1.5 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
0.22 - 4.66 nmol/L * 0.45045 = ng/mL
Review:
17/10/2011
896
VITAMIN B6 (PYRIDOXAL PHOSPHATE), SERUM
Method:
High efficiency liquid chromatography - Fluorimetry.
Mounting:
Delivery period:6
Sample:
1 mL Serum (-8 ºC - Freeze)
Alt. 1 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
20.00 - 121.00 nmol/L * 0.247158 = ng/mL
Review:
20/10/2011
897
VITAMIN A (RETINOL), SERUM
Method:
High efficiency liquid chromatography - Ultraviolet.
Mounting:
Delivery period:5
Sample:
1 mL Serum (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
Both > 19 Years 1.05 - 2.80 umol/L * 0.286533 = mg/L
Both 1 6 Years 0.70 - 1.50 umol/L * 0.286533 = mg/L
Both 13 19 Years 0.91 - 2.50 umol/L * 0.286533 = mg/L
Both 7 12 Years 0.91 - 1.71 umol/L * 0.286533 = mg/L
Review:
21/11/2014
900
VITAMIN C (ASCORBIC ACID), PLASMA
Method:
High efficiency liquid chromatography - Electrochemical.
Mounting:
Delivery period:5
Sample:
1 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Sample extraction:
Use the tubes supplied by this laboratory.
Transport:
Protect from light.
Sample extraction:
To add to 0.50 mililiter of sample to the tube provided by our laboratory .
Reference V.:
23.00 - 113.00 umol/L * 0.176367 = mg/L
Review:
12/04/2010
902
VITAMIN D (25-OH-CHOLECALCIFEROL), SERUM
Method:
Immunochemiluminiscence.
Mounting:
Delivery period:2
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Heparin lithium (2-8 ºC - Refrigerate)
Reference V.:

Insufficiency 25.00 - 75.00 nmol/L * 0.400641 = ng/mL
Sufficiency 75.01 - 250.00 nmol/L * 0.400641 = ng/mL
Deficiency < 25.00 nmol/L * 0.400641 = ng/mL
Toxicity > 250.00 nmol/L * 0.400641 = ng/mL
Review:
08/06/2010
904
VITAMIN E (ALPHA-TOCOPHEROL), SERUM
Method:
High efficiency liquid chromatography - Ultraviolet.
Mounting:
Delivery period:5
Sample:
1 mL Serum (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
Both > 19 Years 11.60 - 44.08 umol/L * 0.043066 = mg/dL
Both 1 12 Years 6.96 - 20.88 umol/L * 0.043066 = mg/dL
Both 13 19 Years 13.92 - 23.20 umol/L * 0.043066 = mg/dL
Review:
20/10/2011
1138
VIP (VASOACTIV INTESTINAL PEPTIDE), PLASMA
Method:
Radioimmunoanalysis.
Mounting:
Delivery period:12
Sample:
1 mL Plasma Tripotassium EDTA Trasylol (-8 ºC - Freeze)
Sample extraction:
Pick up 5 mL of blood in a vacutainer EDTA K3 hot tube with 250 KIU of Trasylol (Aprotinine).
Cool the tube with blood in an ice bath immediately during 10 minuts.
Plasma is separated by centrifugation at º4C.
Plasma should be frozen within 1 hour and stored ad -20ºC until assayed.
Reference V.:
0.00 - 30.00 pmol/L
Review:
24/04/2009
1259
VANCOMYCIN, SERUM
Method:
Polarized Immunofluorescense.
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Sodium heparin (2-8 ºC - Refrigerate)
Therapeutic R.:

Trough 3.45 - 7.00 umol/L * 1.44928 = ug/mL
Toxic C.:
> 55.00 umol/L * 1.44928 = ug/mL
Therapeutic R.:

Peak 14.00 - 28.00 umol/L * 1.44928 = ug/mL
Review:
09/04/2013
1355
VANILMANDELIC ACID (4 HYDROXY 3 METHOXYMANDELATE) (CREATININE), URINE
Method:
High efficiency liquid chromatography - Electrochemical.
Mounting:
Delivery period:6
Sample:
10 mL Urine Hydrochloric acid concentrated (37%). (2-8 ºC - Refrigerate)
Review:
05/09/2015
1362
VARICELLA ZOSTER VIRUS SPECIFIC CULTURE, EXUDATE
Method:
Bacteriologic culture in specific media.
Mounting:
Delivery period:10
Sample:
1 Sample/s Exudate (2-8 ºC - Refrigerate)
Reference V.:
Negative
1363
VARICELLA ZOSTER VIRUS ANTIGEN, EXUDATE
Method:
Indirect Immunofluorescense.
Mounting:
Delivery period:6
Sample:
1 All Exudate (2-8 ºC - Refrigerate)
Reference V.:
Negative
1548
VARICELLA ZOSTER VIRUS ANTIBODIES, IgM, SERUM
Method:
Enzyme-Linked Immunoassay.
Mounting:
Delivery period:2
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Interpretation:
Indeterminate: 0.90 - 1.10 Indice
Positive:
> 1.10 Indice
Negative:
< 0.90 Indice
Review:
21/06/2013
1693
VARICELLA ZOSTER VIRUS DNA, BIOLOGICAL FLUID
Method:
Real Time PCR.
Mounting:
Delivery period:11
Sample:
5 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Alt. 1 mL Serum (-8 ºC - Freeze)
Alt. 1 mL Cerebrospinal liquid (-8 ºC - Freeze)
Alt. 1 mL Amniotic fluid (-8 ºC - Freeze)
Sample extraction:
Do not send specimens with heparin because they inhibit the polymerase of PCR.
If sending blood, please refrigerate specimen.
Reference V.:
Is not detected
Review:
09/09/2013
1936
VITAMIN C (ASCORBIC ACID), URINE
Method:
High efficiency liquid chromatography - Electrochemical.
Mounting:
Delivery period:4
Sample:
1 mL 24h urine (aliquot) (-8 ºC - Freeze)
Request form:
Diuresis required
Sample extraction:
Use the tubes supplied by this laboratory.
To add to 0.50 mililiter of sample to the tube provided by our laboratory .
Reference V.:
113.00 - 170.00 umol/24h * 0.176367 = mg/24h
Review:
05/03/2004
2040
VANILMANDELIC ACID (4 HYDROXY 3 METHOXYMANDELATE), URINE
Method:
High efficiency liquid chromatography - Electrochemical.
Mounting:
Delivery period:5
Sample:
10 mL 24h urine (aliquot) Hydrochloric acid concentrated (37%). (2-8 ºC - Refrigerate)
Request form:
Diuresis required
Reference V.:
Both 1 3 Years 2.40 - 11.30 umol/24h * 0.19802 = mg/24h
Both 11 16 Years 12.30 - 26.10 umol/24h * 0.19802 = mg/24h
Both 4 6 Years 5.20 - 13.10 umol/24h * 0.19802 = mg/24h
Both 17 83 Years 7.00 - 33.00 umol/24h * 0.19802 = mg/24h
Both 7 10 Years 10.21 - 16.08 umol/24h * 0.19802 = mg/24h
Review:
05/03/2004
2142
VITAMIN C (ASCORBIC ACID), SEMINAL PLASMA
Method:
High efficiency liquid chromatography - Electrochemical.
Mounting:
Delivery period:5
Sample:
1 mL Seminal plasma (-8 ºC - Freeze)
Sample extraction:
Use the tubes supplied by this laboratory.
To add to 0.50 mililiter of sample to the tube provided by our laboratory .
Reference V.:
230.00 - 1100.00 umol/L * 5.67 = mg/L
Review:
15/05/2008
2154
VENLAFAXINE, SERUM
Method:
High efficiency liquid chromatography.
Mounting:
Delivery period:10
Sample:
2 mL Serum (-8 ºC - Freeze)
Therapeutic R.:
35.00 - 220.00 ug/L * 1 = ng/mL
R.Values:
Reference values are expressed as therapeutic range for a 75 mg/day dose and 2 hours after de last dose.
Review:
08/10/2009
2441
VON HIPPEL-LINDAU SYNDROME (VHL GENE: SEQUENCING), BLOOD
Method:
PCR-Sequencing.
Mounting:
Delivery period:65
Sample:
10 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
Review:
24/05/2013
6133
VOLATIL ORGANIC COMPOUNDS , DRINKING WATER
Method:
Gas Chromatography - Mass spectrometry.
Mounting:
Delivery period:10
Sample:
10 mL Water (Recipient, glass)
Sample extraction:
Recipients should be filled completely (leaving no residual air volume).
RD 140/2003:
1,2-Dicloroetano:
< 3.00 ug/L
Benceno:
< 1.00 ug/L
Bromodiclorometano (*):
Not established.
Bromoformo (*):
Not established.
Cloroformo (*):
Not established.
Dibromoclorometano (*):
Not established.
Suma de * (Trihalometanos):
< 100.00 ug/L
Tri + Tetracloroeteno:
< 10.00 ug/L
Review:
10/11/2009
8057
VIRUS OROPOUCHE SEROLOGICAL STUDY (IgG+IgM), SERUM
Method:
Indirect Immunofluorescense.
Mounting:
Delivery period:15
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
8488
VIH-1 / VIH-2 ANTIBODIES (CONFIRMATION), SERUM
Method:
Immunoblot.
Mounting:
Delivery period:6
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
Reference V.:
Negative
Review:
19/11/2010
8553
VARICELLA VIRUS IgG ANTIBODIES (AVIDITY), SERUM
Method:
Enzyme-Linked Immunoassay.
Mounting:
Delivery period:15
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Interpretation:
Moderate avidity: 40.00 - 60.00 % Avidez
High avidity:
> 60.00 % Avidez
Low avidity:
< 40.00 % Avidez
8565
VANADIUM IN URINE
Method:
Inductively coupled plasma mass spectrometry
Mounting:
Delivery period:4
Sample:
10 mL Urine (2-8 ºC - Refrigerate)
BLV:

End of work week (Vanadium) < 50.00 ug/g creat.
Review:
03/07/2010
8801
VHC/HIV/VHB NUCLEIC ACIDS, PLASMA
Method:
Nucleic acid amplification technique
Mounting:
Delivery period:4
Sample:
3 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Sample extraction:
Do not send specimens with heparin because they inhibit the polymerase of PCR.
R.Values:
Detection limit of the test NAT
(Nucleic Acid Testing; 95% hit rate):


10 IU/mL HCV RNA, 50 IU/mL HIV-1 RNA, 15 IU/mL HBV DNA.
Reference V.:
Negative
8854
VIH-1/2 ANTIBODIES (CONFIRMATION), SERUM
Method:
Immunochromatography.
Mounting:
Delivery period:6
Sample:
1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
1 mL Serum (2-8 ºC - Refrigerate)
Reference V.:
gp140:
Not established.
gp160:
Not established.
gp36:
Not established.
gp41:
Not established.
p24:
Not established.
p31:
Not established.
Result HIV-1/2 antibodies (confirm.):
:
Negative
8857
VENLAFAXINE I DESMETHYLVENLAFAXINE, SERUM
Method:
High efficiency liquid chromatography - Mass spectrometry.
Mounting:
Delivery period:10
Sample:
1 mL Serum (-8 ºC - Freeze)
Alt. 1 mL Plasma (-8 ºC - Freeze)
Reference V.:
Desmetilvenlafaxine:
Not established.
Therapeutic R.:
Venlafaxine + Desmetilvenlafaxine:
100.00 - 400.00 ug/L * 1 = ng/mL
Toxic C.:

> 800.00 ug/L * 1 = ng/mL
Reference V.:
Venlafaxine:
Not established.
R.Values:
Reference values are expressed as therapeutic range for a 75 mg/day dose and 2 hours after de last dose.

10261
VALPROIC ACID FREE, SERUM
Method:
Fluoroenzyme Immunoassay.
Mounting:
Delivery period:5
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Therapeutic R.:
5.00 - 20.00 mg/L
10959
VON HIPPEL-LINDAU SYNDROME (VHL GENE: KNOWN MUTATION), BLOOD
Method:
PCR-Sequencing.
Mounting:
Delivery period:35
Sample:
5 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
11007
VORICONAZOL, SERUM
Method:
High efficiency liquid chromatography - Mass spectrometry.
Mounting:
Delivery period:8
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Therapeutic R.:
5.72 - 15.75 mmol/L * 0.3493 = mg/L
Toxic C.:
> 15.75 mmol/L * 0.3493 = mg/L
Review:
07/07/2014
11604
VITAMIN B2 (FAD), BLOOD
Method:
High efficiency liquid chromatography.
Mounting:
Delivery period:10
Sample:
3 mL Total blood Tripotassium EDTA (-8 ºC - Freeze)
Transport:
Protect from light.
Reference V.:
165.49 - 381.90 nmol/L * 0.785546 = ug/L
Review:
24/01/2013
11610
VISCOSITY, SERUM
11729
VARICELA-ZOSTER VIRUS IgG ANTIBODIES, LCR
Method:
Enzyme-Linked Immunoassay.
Mounting:
Delivery period:6
Sample:
0.5 mL Cerebrospinal liquid (2-8 ºC - Refrigerate)
Reference V.:
Negative
11730
VARICELA-ZOSTER VIRUS IgM ANTIBODIES, CSF
11742
VEGF-A (VASCULAR ENDOTELIAL GROWTH FACTOR A), PLASMA
Method:
Enzyme-Linked Immunoassay.
Mounting:
Delivery period:40
Sample:
1 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Sample extraction:
Separate plasma as soon as possible.
Reference V.:
< 129.00 ng/L * 1 = pg/mL
Review:
22/05/2013
14225
VANADIUM, SERUM
14940
VARICELLA ZOSTER VIRUS DNA, AMNIOTIC FLUID
Method:
Real Time PCR.
Mounting:
Delivery period:5
Sample:
3 mL Amniotic fluid (12-20 ºC - Ambient Temp.)
Reference V.:
Negative
15069
VARICELLA ZOSTER VIRUS ANTIBODIES, IgG, SERUM
Method:
Immunochemiluminiscence.
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma (2-8 ºC - Refrigerate)
Interpretation:
Positive: >= to 150.00 UI/L * 1 = mUI/mL
Negative:
< 150.00 UI/L * 1 = mUI/mL
15440
VALPROIC ACID (VALPROATE), SERUM
Method:
Immunochemiluminiscence.
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Heparin lithium (2-8 ºC - Refrigerate)
Toxic C.:
> 693.00 umol/L * 0.1443 = ug/mL
Therapeutic R.:
347.00 - 693.00 umol/L * 0.1443 = ug/mL
15577
VENT. CATHECOLAMINERGIC 4 TACHYCARDIA (CALM1 GENE: SEQ.), BLOOD
Method:
PCR-Sequencing.
Mounting:
Delivery period:65
Sample:
10 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin, hemolyzed or lipemic, because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
15578
VENT. CATHECOLAMINERGIC 1 TACHYCARDIA (RYR2 GENE: SEQ.), BLOOD
Method:
Next Generation Sequencing (NGS)
Mounting:
Delivery period:65
Sample:
10 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin, hemolyzed or lipemic, because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
15579
VITELLIFORM MACULAR DYSTROPHY (BEST1 GENE: SEQUENCING), BLOOD
Method:
PCR-Sequencing.
Mounting:
Delivery period:65
Sample:
10 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin, hemolyzed or lipemic, because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
15735
VIGABATRIN, SERUM
Method:
High efficiency liquid chromatography - Mass spectrometry.
Mounting:
Delivery period:6
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Tripotassium EDTA (2-8 ºC - Refrigerate)
Therapeutic R.:
1.00 - 36.00 mg/L * 7.742 = µmol/L
15901
VITAMIN D-DEPENDENT RICKETS TYPE I (CYP27B1 GENE: SEQUENCING), BLOOD
Method:
PCR-Sequencing.
Mounting:
Delivery period:65
Sample:
10 mL Total blood Tripotassium EDTA (2-8 ºC - Refrigerate)
Request form:
Clinical information required.
Sample extraction:
Do not send specimens with heparin, hemolyzed or lipemic, because they inhibit the polymerase of PCR.
Reference V.:
Reported for each case
15903
VITAMIN D (1,25-DIHYDROXYCALCIFEROL), SERUM
Method:
Radioimmunoanalysis.
Mounting:
Delivery period:3
Sample:
1 mL Serum (-8 ºC - Freeze)
Alt. 1 mL Plasma Tripotassium EDTA (-8 ºC - Freeze)
Sample extraction:
Separate serum as soon as possible.
Reference V.:
47.04 - 130.32 pmol/L * 0.416667 = pg/mL
16105
VANCOMYCIN, SERUM
Method:
Enzyme multiplied immunoassay technique.
Mounting:
Delivery period:1
Sample:
1 mL Serum (2-8 ºC - Refrigerate)
Alt. 1 mL Plasma Sodium heparin (2-8 ºC - Refrigerate)
Therapeutic R.:

Peak 14.00 - 28.00 umol/L * 1.44928 = ug/mL
Trough 3.45 - 7.00 umol/L * 1.44928 = ug/mL
Toxic C.:
> 55.00 umol/L * 1.44928 = ug/mL