Test Details

• Discipline:

  Biochemistry

  Biochemistry

• Specimen Container Adult:

  Serum (SST or plain tube)

  Serum (SST or plain tube)

• Specimen Container Paediatric:

  Serum (SST or plain tube)

  Serum (SST or plain tube)

• Minimum Volume Adult:

  1 mL blood

  1 mL blood

• Minimum Volume Paediatric:

  0.5 mL blood

  0.5 mL blood

• Sample Stability:

  Before separation: unknown
  After separation:
  at +15° to +25°C: 7 day
  at +2° to +8°C: 14 days
  at -20°C: 6 months

  Before separation: unknown
  After separation:
  at +15° to +25°C: 7 day
  at +2° to +8°C: 14 days
  at -20°C: 6 months

• Quality Assurance:

  WEQAS

  WEQAS

• Interpretation:

  Severity of poisoning cannot be assessed from plasma salicylate concentrations alone but salicylate intoxication is usually associated with plasma concentrations greater than 350 mg/L.
  
  Measurement...

  Severity of poisoning cannot be assessed from plasma salicylate concentrations alone but salicylate intoxication is usually associated with plasma concentrations greater than 350 mg/L.
  
  Measurement of serum salicylate is not intended for use with low-dose aspirin therapy. Most patients on low daily doses of aspirin for cardiovascular prophylaxis will have serum concentrations near or below the lower limit of the analytical range.

  Read More

• Reference Ranges:

  Therapeutic Ranges:
  Analgesia, antipyresis: 30 - 100 mg/L
  Anti-inflammatory: 150 - 300 mg/L

  Therapeutic Ranges:
  Analgesia, antipyresis: 30 - 100 mg/L
  Anti-inflammatory: 150 - 300 mg/L

• Other Info:

  Lithium heparin plasma samples also acceptable

  Lithium heparin plasma samples also acceptable

• Routine Contact Name:

  Duty Biochemist

• Routine Telephone:

  0191 282 9719

  0191 282 9719

• Routine Email:

  nuth.dutybiochemist@nhs.net