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Test Code TGPQA Toxoplasma gondii Quantitative Real-time PCR (Amniotic fluid)

Clinical Indications

Toxoplasma gondii is highly problematic when primary infection
occurs during the first trimester of pregnancy, often leading to
fetal death or when reactivation occurs in immunocompromised
patients, leading to life-threatening disease including
encephalitis and extracerebral toxoplasmosis. Onset of disease in
most patients is preceded by an increase in parasite load.
Monitoring blood levels of Toxoplasma gondii DNA correlates well with treatment.

Additional Test Codes

Epic Order Name: TOXOPLASMA
GONDII QUANT
PCR AMNIOTIC
FLUID (aka TGPQA)
Sunquest Order Code: TGPQA
Epic Px Code: LAB7089

Specimen Collection Type

Amniotic fluid collected in a sterile, screw top container

Minimum Collection Volume

0.5 mL

Reference Range

266 copies/mL to 1×10^8 copies/mL

Critical Value

N/A

Interpretation

The primers and probes used in this assay are specific for known
Toxoplasma gondii strains based on similarity search algorithms.
Additionally, no cross reactivity was detected with any viral or
protozoa pathogens.

Rejection Criteria

Specimens beyond their acceptable length of time from collection
as listed in the specimen stability, specimens other than amniotic
fluid.

Specimen Availability for Add-on Testing

2 Days

Specimen Stability

Ambient (preferred): 4 days
Refrigerated: 4 days
Frozen: 7 days

Day(s) Performed

Monday through Saturday

Performing Lab- Department

TUKHS-BH-Mail Outs

CPT Code

87799

LOINC Code

N/A

Test Alias

T. gondii DNA detection, Amniotic
fluid
T. gondii PCR, Amniotic fluid

Additional Information / Notes

Turnaround time: Same day (within 8 – 12 hours from
receipt of specimen)