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Valproic Acid

  • Test Name: Valproic Acid (Epilim) - See Epilim

Vancomycin

  • Test Name: Vancomycin
  • Laboratory: Biochemistry
  • Specimen Type: Serum, plasma
  • Specimen Container: Yellow, green for WRH in house samples only.
  • Specimen Volume: 4mls
  • Specimen Requirements: Clearly indicate dosage/collection times.
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: Routine: 1 working day. Urgent: < 3 hours.
  • Phone alert limits: N/A
  • Preanalytical stability at room temp:

Vancomycin Resistant Enterococci (VRE)

  • Test Name: Vancomycin Resistant Enterococci (VRE)
  • Laboratory: Microbiology
  • Specimen Type: Swabs - Rectal/others, Faeces, Urine, Sputum.
  • Specimen Container: Amies swab, sterile universal container.
  • Specimen Volume: Faeces 1-2g (spoonful). At least 2ml urine. If possible at least 5ml
  • sputum.
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time:2-4 days
  • Phone alert limits: New Positive VRE isolates from in-patients will be phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Varicella zoster serology (VZV)

  • Test Name: Varicella zoster serology (VZV)
  • Laboratory: Serology
  • Specimen Type: Clotted Blood Specimen, pink topped viral swab for PCR.
  • Specimen Container: Yellow, white (paediatric), pink topped viral swab.
  • Specimen Volume: 4ml clotted blood (1.5ml paediatric).
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed
  • Other details: N/A
  • Frequency of analysis/ assay: Daily for blood specimens, weekly for PCR.
  • Turnaround Time: 1 day for blood specimens, 7-10days for PCR.
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: N/A

Vasointestinal Peptide (VIP)

  • Test Name: Vasointestinal Peptide (VIP)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: EDTA + aprotinin (Available from biochemistry dept.)
  • Specimen Container: Pink
  • Specimen Volume: 4mls
  • Specimen Requirements: Send sample to lab within 30 mins after collection.
  • Other details: N/A
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Sample must be separated and frozen in the lab < 1 hour.

Viral Screen

  • Test Name: Viral Screen
  • Laboratory: Serology External
  • Specimen Type: N/A
  • Specimen Container: N/A
  • Specimen Volume: N/A
  • Specimen Requirements: N/A
  • Other details: A general request for "viral screen" is unlikely to be helpful unless relevant clinical details are provided - see Guidelines for appropriate requesting of Virology / Serology
  • Frequency of analysis/ assay: Referred to external lab
  • Turnaround Time: 7-10 days
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: N/A

Vitamin A

  • Test Name: Vitamin A (protect from light)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: Serum or lithium heparing plasma
  • Specimen Container: Yellow or green
  • Specimen Volume: 4mls
  • Specimen Requirements: Send sample to lab within 30 mins after collection. Protect sample from light using black plastic or tin foil.
  • Other details: Send separate request form and sample.
  • Frequency of analysis/ assay:
  • Turnaround Time: 3weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Sample must be separated and frozen in lab < 1 hour.

Vitamin B12

  • Test Name: Vitamin B12
  • Laboratory: Haematology
  • Specimen Type: Serum
  • Specimen Container: Yellow
  • Specimen Volume: 4mls
  • Specimen Requirements: Same sample suffices for folate/ferritn
  • Other details: Relevant clinical details required. Repeat tests not performed within one year. 
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 working days
  • Phone alert limits: n/a
  • Preanalytical stability at room temp: 7 days

Vitamin D (25 hydroxy Vitamin D)

  • Test Name: Vitamin D (25 hydroxy Vitamin D)
  • Laboratory: Biochemistry
  • Specimen Type: Serum
  • Specimen Container: Yellow
  • Specimen Volume: 4mls
  • Specimen Requirements: Vitamin D testing preformed with relevant clinical details only
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: Routine 2 working day.
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: 3 days.

Vitamin E (tocopherol)

  • Test Name: Vitamin E (tocopherol)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: Serum
  • Specimen Container: Yellow
  • Specimen Volume: 4mls
  • Specimen Requirements: Send sample to lab within 30 mins after collection.
  • Other details: Include patient age and gender.
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Sample must be separated and frozen in lab < 1 hour.

Vitamin D (1,25 Dihydroxy)

  • Test Name: Vitramin D (1,25 Dihydroxy)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: Serum
  • Specimen Container: Yellow
  • Specimen Volume: 4mls
  • Specimen Requirements: Send sample to lab within 30 mins after collection.
  • Other details: Send separate request form and sample
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Sample must be separated and frozen in lab < 1 hour.

VMA (Adult)

  • Test Name: VMA (Adult)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: 24 hour acidified urine
  • Specimen Container: 24 hr. Urine - Acidified. Container with acid preservative available from the biochemistry lab.
  • Specimen Volume: Complete collection
  • Specimen Requirements:
  • Other details: The patient must not consume the following for 48 hours prior to the test; collagen-rich foods, meat, jelly, gelatin, ice cream, sweets, cooked meats.
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: N/A

VMA (Paediatric)

  • Test Name: VMA (Paediatric)
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: Spot Urine
  • Specimen Container: White top Universal container
  • Specimen Volume: Min 5 mls preferably 10mls
  • Specimen Requirements: Send sample to lab within 30 mins after collection.
  • Other details: Boric acid container (red top) unsuitable.
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp:

von Willebrand screen

  • Test Name: von Willebrand screen
  • Laboratory: Haematology referral test
  • Specimen Type: Trisodium Citrate x 6
  • Specimen Container: Blue
  • Specimen Volume: 3ml per tube
  • Specimen Requirements: Must be received in lab on day of sampling
  • Other details: Discuss with Haematology Medical team prior to sending to lab
  • Frequency of analysis/ assay: Referred to external test site
  • Turnaround Time: 4 - 6 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Samples should ideally be processed within 4 hours of collection.  Please send to the laboratory ASAP