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Test Name:
Toxoplasma gondii, by PCR
- SBMF No:
44670 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
TOXO PCR - ABN:
Required – Not FDA-Approved - CPT Code:
87798 - LOINC Code:
19146-0; 29904-0 - Ref Lab Test No:
0055591 - Spec Type:
Serum or Plasma - Spec Container:
Gold top (SST), red top (serum), or lavender top (EDTA) tube - Alt Spec Type:
Amniotic fluid, cerebrospinal fluid (CSF), or biopsy tissue (freeze tissue immediately) - Alt Spec Container:
Sterile container - Pref Vol:
1.0 mL serum, plasma, amniotic fluid, or CSF
Fresh tissue, snap frozen on dry ice - Min Vol:
Pediatric Collection: 0.25 mL serum, plasma, or CSF
Note: Less volume may decrease the sensitivity of the assay - Fasting:
No - Spec Collect:
Blood: Routine venipuncture
Fluid or tissue: Collected by physician
Document source of specimen on container label and test requisition - Spec Process:
- Blood samples:
- – Serum tubes, clot 30 minutes
– All tubes, promptly centrifuge 15 minutes
– Transfer serum or plasma to separate plastic tube and freeze - Fluid or tissue samples: Freeze and transport frozen
- Spec Store Transport:
Frozen
Submit specimen according to Biological Substance, Category B, shipping guidelines - Spec Stability:
8 hours room temperature (20-30°C) - excludes tissues
3 days (72 hours) refrigerated (2-8°C) - excludes tissues
3 months frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Nonsterile or leaking containers
Heparinized or hemolyzed sample - Methodology:
Polymerase Chain Reaction (PCR) - Clinical Significance:
Refer to:
- Reference Range:
- Toxoplasma gondii, by PCR
- Negative - Toxoplasma gondii DNA not detected by PCR
Positive - Toxoplasma gondii DNA detected by PCR - Interpretive Data:
- A negative result does not rule out the presence of PCR inhibitors in the patient specimen or Toxoplasma gondii DNA concentrations below the level of detection of the assay.
- Additional Test Info:
This test is performed pursuant to an agreement with Roche Molecular Systems, Inc.
This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
- Day Run:
Tue, Fri - Time Reported:
2-6 days - Test Type:
INFECTIOUS ORGANISM
