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Anticuerpo contra la enfermedad de Lyme - Results

Nombres alternativos

Serología para la enfermedad de Lyme; ELISA para la enfermedad de Lyme; Inmunotransferencia (Western blot) para la enfermedad de Lyme

Valores normales:

Un resultado negativo en el examen es normal y significa que se observaron pocos o ningún anticuerpo contra la enfermedad de Lyme en su muestra de sangre. Si el examen ELISA es negativo, generalmente no se necesitan otros exámenes.

Los rangos de los valores normales pueden variar ligeramente entre diferentes laboratorios. Hable con el médico acerca del significado de los resultados específicos de su examen.

Los ejemplos anteriores muestran las mediciones comunes para los resultados de estas pruebas. Algunos laboratorios usan diferentes medidas o podrían evaluar diferentes muestras.

Significado de los resultados anormales:

Un resultado positivo del ELISA es anormal, lo cual significa que se observaron anticuerpos en su muestra de sangre; sin embargo, esto no confirma un diagnóstico de la enfermedad de Lyme. A un resultado positivo del ELISA se le debe hacer un seguimiento con una inmunotransferencia. Sólo una inmunotransferencia positiva puede confirmar el diagnóstico de enfermedad de Lyme.

Para muchas personas, el examen ELISA sigue siendo positivo incluso después de haber recibido tratamiento para la enfermedad de Lyme y ya no tener más síntomas.

Un ELISA positivo también se puede presentar con ciertas enfermedades, como la artritis reumatoidea.

  • Reviewed last on: 3/11/2011
  • Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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