POWERCHART NAME

VALPROIC ACID (DEPAKENE) LEVEL

MERCY TEST NAME

VALPRO ACID

MERCY LAB CODE

VAL
Specimen: 0.5 ml lithium heparin plasma from a PST tube. Sodium Heparin and EDTA plasma tubes are also accepted.  Stable 48 hours refrigerated. Collection time is not critical.
Comment: Peak reached 1 - 4 hours after oral dose. Indicate time last dose in comment.
Performed: Within 8 hours of receipt.  Available stat. 
Reference value:

Therapeutic range: 50 - 100 mcg/ml
Biopolar disorder therapeutic range:  50 - 125 mcg/ml
Method:   Immunoturbidimetric
CPT Code:  80164

POWERCHART NAME

VANCOMYCIN PEAK LEVEL

MERCY TEST NAME

VANCOMYCIN PEAK

MERCY LAB CODE

VNPK
Specimen:  0.5 ml lithium heparin plasma from a PST tube. Sodium Heparin and EDTA plasma tubes are also accepted.  Stable 48 hours refrigerated.
Comment:  Consult Pharmacy to establish collection time.  Indicate time last dose in comment.
Performed: Within 8 hours of receipt.
Reference value: 18 - 26 mcg/mL
Method:  Immunoturbidimetric
CPT Code: 80202

POWERCHART NAME

VANCOMYCIN LEVEL INTERMEDIATE

MERCY TEST NAME

VANCOMYCIN INT

MERCY LAB CODE

VNI 

Specimen: 0.5 ml lithium heparin plasma from a PST tube. Sodium Heparin and EDTA plasma tubes are also accepted.  Stable 48 hours refrigerated.
Comment:  Consult Pharmacy to establish collection time.  Indicate time last dose in comment.
Performed: Within 8 hours of receipt.
Reference value: Therapeutic range: 12 - 18 mcg/ml
Method: Immunoturbidimetric
CPT Code: 80202

POWERCHART NAME

VANCOMYCIN TROUGH  LEVEL

MERCY TEST NAME

VANCOMYCIN TRGH

MERCY LAB CODE

VNTR
Specimen:  0.5 ml lithium heparin plasma from a PST tube. Sodium Heparin and EDTA plasma tubes are also accepted.  Stable 48 hours refrigerated.
Comment: Consult Pharmacy to establish collection time.  Indicate time last dose in comment. Based on site of infection, higher trough levels may be necessary.
Performed: Within 8 hours of receipt.
Reference value: 5.0 - 15.0 mcg/ml
Method:  Immunoturbidimetric
CPT Code:  80202

TEST NAME

VANILLYMANDELIC ACID

See:  VMA (Vanillymandelic Acid) 24-Hour Urine* 


POWERCHART NAME

VAP (VERTICAL AUTO PROFILE) LIPID PROFILE

MERCY TEST NAME

VAP LIPID PROFILE*

MERCY LAB CODE

VAP
Specimen: 3 ml serum from a SST tube.  Refrigerate.
Coment: Specimen will be rejected if hemolyzed. 
Performed:   Test results will be sent to physician within 72 hours of specimen receipt at Atherotech Laboratories.
Reference value:  Included on report.
CPT Code:

84478 Triglycerides
83701 Lipoprotein Frac. Qnt.

POWERCHART NAME

VARICELLA ZOSTER ANTIBODY IgG

MERCY TEST NAME

VARIC ZOST IgG*

MERCY LAB CODE

VZ
Specimen: 1.0 ml serum from a SST or plain red top tube. (0.2 ml minimum)  Maintain sterility.
Comment:  Qualitative testing only.  Determines immunity status.
Processing:  Send in screw - topped sterile vial, refrigerated to Mayo.  Mayo # 8812.
Performed: 2 days.  Test set up Sunday through Friday.
Reference value: Negative indicates non-immunity.
Method:  Enzyme-Linked Immunosorbent Assay (ELISA)
CPT Code:  86787

POWERCHART NAME

VARICELLA ZOSTER ANTIBODY IgG IgM

MERCY TEST NAME

VARIC ZOST IgG IgM*

MERCY LAB CODE

VZGM
Specimen:  0.5 ml serum from a SST or plain red top tube. (0.5 ml minimum)
Comment: Includes IgG and IgM reslults
Processing:  Send in screw-capped, round bottem, plastic vial, refrigerated to Mayo.  Mayo # 84424
Performed: Test set up Monday through Saturday
Reference value: Included with Results
Method:  

IgG: Enzyme-Linked Immunosorbent Assay (ELISA)
IgM: Immunofluorescence Assay (IFA)
CPT Code:  86787 x2

 

POWERCHART NAME

 NEUTROPHIL CYTOPLASM ANTIBODY VASCULITIS PANEL

MERCY TEST NAME

VASCULITIS ANCA PANEL*

MERCY LAB CODE

VAPNL
Specimen:  1.0 mL serum from a plain red top tube.
Processing: 
 Send refrigerated to Mayo.  Mayo # 83012
Performed: 3 days analitic time. Monday through Friday.
Reference value:
Reference ranges included with results.
Method:  

Enzyme-Linked Immunosorbent Assay (ELISA), Direct Immunofluorescence
CPT Code:  83520  Myeloperoxidase antibodies
83516  Proteinase 3 Antibodies
86255  Cytoplasmic Neutrophil Antibodies (ANCA) Screen - if appropriate
86256  Cytoplasmic Neutrophil Antibodies (ANCA) Titer - if appropriate.


TEST NAME

VDRL, serum

See:   SYPHL


POWERCHART NAME

VDRL CSF QUALITATIVE

MERCY TEST NAME

VDRL CSF*

MERCY LAB CODE

VDRC
Specimen: 0.5 ml spinal fluid in a CSF tube.
Processing:  Send frozen to Mayo.  Mayo # 9028.
Performed:  1 day.  Test set up Monday through Saturday.
Reference value:  Negative.
Method:    Flocculation/Agglutination
CPT Code: 86592

POWERCHART NAME

VISCOSITY

MERCY TEST NAME

VISCOSITY SERUM*

MERCY LAB CODE

VSCT
Specimen:  1.5 ml serum from a red top tube.  Keep specimen at 37°C until after centrifugation and separation of cells.
Processing:  Send to Mayo.  Mayo # 8168.
Performed:  1 day.  Test set up Monday through Friday.
Reference value:  0 - 1.5 CPOISE
Method:  Sonoclot Coagulation Analyzer.
CPT Code: 85810

 

POWERCHART NAME

 VITAMIN A (Retinol) LEVEL

MERCY TEST NAME

VITAMIN A*

MERCY LAB CODE

VITA
Specimen:  1.5 mL serum in amber vial.
Collection: Specimen must be collected in a plain red-top tube following an overnight (12 - 14 hour) fast. Patient may not consum any alcohol or injest any vitamin supplements for 24 hours prior to collection.
Processing: 

Send serum frozen in an amber vial.

Cause for Rejection: Specimen collected in serum gel tubes are not accepted.
Performed: Monday through Saturday
Method: High-Performance Liquid Chromatography (HPLC)
CPT Code: 84590 - VITA

 

POWERCHART NAME

 VITAMIN B1 (THIAMIN) WHOLE BLOOD

MERCY TEST NAME

THIAMIN VIT B1*

MERCY LAB CODE

VB1
Specimen:  5 ml Whole Blood from a green top heparin tube.  Sent Frozen.
Cause for rejection: Specimens other than whole blood, specimens collected with anticoagulant other than heparin, and warm specimens will be rejected.
Processing: 

Collect after overnight (12 hour) fast.  Patient must not consume vitamin supplements for 12 hours prior to specimen draw.  Send frozen to Mayo.  Mayo - 81019

Regional Lab Clients:  Send in separate aliquot tube, Frozen.  Do not send in original collection tube.

Performed: Monday through Friday, 8a.m. cutoff
Reference value:

Reference ranges included with result
Method: High-Performance Liquid Chromatography (HPLC) with Flourescence
CPT Code: 84425 Vitamin B1


POWERCHART NAME

VITAMIN B12 LEVEL

MERCY TEST NAME

VITAMIN B12

MERCY LAB CODE

B12
Specimen:  0.5 ml serum from a SST tube. Aliquot specimen.
Comment:  Collect before blood transfusion. If adequate amount of specimen and the result is below the reference range, a sample will be frozen for 14 dats for possible additional testing.
Cause for rejection: Hemolyzed specimen not acceptable.
Processing: 

Avoid exposure to sunlight.  Keep all SST tubes upright.  Any inverted spun SST tubes must be re-centrifuged. Stable 8 hours at room temperature.  Stable 24 hours refrigerated.  Freeze if testing is not completed within 24 hours of collection.

Regional Lab Clients:  Send in separate aliquot tube, not SST tube. Freeze if not received at Mercy Medical Center - North Iowa Laboratory within 24 hours of collection.
Performed: Within 8 hours of receipt Monday through Friday.  Sunday 1200 Cutoff.
Reference value:

Male & Female: 180-914 pg/ml
Indeterminate Range: 146 - 179 pg/ml

Deficient Rance: 0 - 145 pg/ml
Method: Competitive Binding Immunoassay Chemiluminescent
CPT Code: 82607 Vit B12

POWERCHART NAME

VITAMIN B12 AND FOLATE LEVEL

MERCY TEST NAME

VIT B12 FOLATE

MERCY LAB CODE

B12F
Specimen:  0.5 ml serum from a SST tube.  Aliquot specimen. Specimen must be collected prior to blood transfusion.
Comment:

Collect before blood transfusion.   Folate should not be ordered for patients who have recently received a radioisotope, methotrexate, or other folic acid antagonist. If adequate amount of specimen and the result is below the reference range, a sample will be frozen for 14 dats for possible additional testing.

Folate reference range based on populations with folic acid fortification of foods.  Deficient folate concentrations are considered to be less than 3 ng/ml.

Cause for rejection: Hemolyzed specimen not acceptable.
Processing:

Avoid exposure to sunlight. Keep all SST tubes upright.  Any inverted spun SST tubes must be re-centrifuged. Stable 8 hours at room temperature.  Stable 24 hours refrigerated. 
Freeze if testing is not completed within 24 hours of collection.

Regional Lab Clients:  Send in separate aliquot tube, not SST tube. Freeze if not received at Mercy Medical Center - North Iowa Laboratory within 24 hours of collection.
Performed:  Within 8 hours of receipt Monday through Friday.  Sunday 1200 Cutoff.
Reference value:

Vitamin B12  Male & Female: 180 - 914 pg/ml
Folate  Male & Female:  6.6 - 20.0 ng/ml
Indeterminate Range: 146 - 179 pg/ml

Deficient Rance: 0 - 145 pg/ml
Method:     Competitive Binding Immunoassay Chemiluminescent
CPT Code:

82607 Vit B12+
82746 Folate+

POWERCHART NAME

VITAMIN D 25 HYDROXY LEVEL

MERCY TEST NAME

VIT D, 25-HYDROXY*

MERCY LAB CODE

VD25H
Patient Preparation: Fasting.  At Least a 4-hour fast before specimen is collected is preferred.
Specimen: 

0.7 ml serum from a SST or plain red top tube. Minimum volume is 0.2 ml.
Processing:   Specimen is to be sent refrigerated.  Mayo #83670.
Performed: Monday – Saturday.
Reference Value: Included on report.  Includes 25-Hydroxyvitamin D2 and D3.
Method: Liquid Chromatography – Tandem Mass Spectrometry.
CPT Code:

82306 Calcifediol
82541 Column Chromatography/mass Spectrometry            

POWERCHART NAME

VMA URINE

MERCY TEST NAME

VMA 24 UR*

MERCY LAB CODE

VVMA
Specimen:

24‑hour urine specimen.  Before start of collection, add 25 ml 50% acetic acid preservative.  Use 15 ml 50% acetic acid for children <5 years old. (Refer to Mayo book for special preservative information if one collection is done for Catecholamine, Metanephrine and VMA.)
Comment:
  • Amoxicillin interferes. Discontinue for 3 days prior to collection.
  • Testing will include a homovanillic acid (HVA) on children 14 years and younger at a separate charge. 
  • A single 24‑hour urine collection may be used for Catecholamines, Metaephrines and VMA. 
Processing:

Aliquot 20 ml (two 10 ml specimens) and indicate total 24-hour volume.  Adjust pH to 2.0-4.0 with 50% acetic acid in each specimen. Send refrigerated to Mayo.  Mayo # 9454.  Separate aliquots must be submitted for Catecholamines and Metanephrines if collected with this specimen.  

Performed: 2 days.  Test set up Monday through Friday.
Reference value:   

Adult: < 8 mg/24 H
Children: age dependent, see report.
Method: Liquid Chromatography-tandam mass spectrometry (LC-MS/MS)
CPT Code: 

84585 VMA UR+
83150 HVA UR+

POWERCHART NAME

FACTOR VIII VON WILLEBRAND ANTIGEN

MERCY TEST NAME

VON WILL FACTOR*

MERCY LAB CODE

VONW
Specimen: 1 ml plasma from blue top tube filled appropriately with amount of blood listed on the label.
Processing:

Centrifuge, remove plasma, spin plasma again.  Freeze plasma in plastic vial.  Send frozen to Mayo. Order VonWillebrand Antigen  Mayo # 9051.
Complete a “Mayo Additional Test Information Form”
(Fill out the Coagulation portion of this form), or a “Coagulation Form” and send with the specimen.    
Performed: 1 day.  Test set up Monday through Friday.
Reference value:  55 - 200%   (16Y – 150Y)
Method: Automated Latex Immunoassay (LIA)
CPT Code:  85246

TEST NAME

VRE SURVEILLANCE CULTURE

See: Microbiology Section
In Pt Micro  / Regional Pt Micro