Test Directory

Clear All
Test Code
TXGWB
Test Name
Toxoplasma gondii PCR, B
CPT Codes
87798
Expected Turnaround Time
1 - 4 days
Clinical Utility

Useful for supporting the diagnosis of active toxoplasmosis, particularly in immunocompromised individuals.
Specimen and Container Info

Specimen Type: Whole Blood

Collection Container: Lavender Top (EDTA)

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a lavender top (EDTA) tube via venipuncture.
Processing and Submission Instructions
  1. Transport 1 mL of whole blood in the original collection container. Do not aliquot.
Transport Instructions

Transport to the laboratory refrigerated.
Stability Requirements

Refrigerated

7 days

Frozen

7 days
Methodology
Polymerase Chain Reaction (PCR)/DNA Probe Hybridization
Reference Intervals

See patient report.
Limitations

This assay is designed for use in patients with a clinical history and symptoms consistent with toxoplasmosis. This test should not be used to screen healthy patients.

Blood may not be a sensitive specimen for detecting organ specific disease (eg, ocular or cerebral toxoplasmosis). In this case, other specimens (eg, ocular fluid, spinal fluid, fresh tissue) should be considered.

Results should be interpreted with consideration of clinical and laboratory findings. A negative result does not indicate absence of disease. Reliable results depend on adequate specimen collection and the absence of inhibiting substances.
Alternate Names
  • Toxoplasma gondii (T. gondii)
Reference Lab
Mayo Clinic Laboratories
Testing Schedule
Routine, Monday - Saturday
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
© 2026 HNL Lab Medicine. All rights reserved.