07.01.2013 Views

Sorted By Test Name - Mayo Medical Laboratories

Sorted By Test Name - Mayo Medical Laboratories

Sorted By Test Name - Mayo Medical Laboratories

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

FVAP<br />

91277<br />

FVZD<br />

91752<br />

VZSC<br />

8812<br />

tumors.<br />

Useful For: Screening children for catecholamine-secreting tumors Supporting a diagnosis of<br />

neuroblastoma Monitoring patients with a treated neuroblastoma<br />

Interpretation: Vanillylmandelic acid (VMA) and/or homovanillic acid (HVA) concentrations are<br />

elevated in more than 90% of patients with neuroblastoma; both tests should be performed. A positive test<br />

could be due to a genetic or nongenetic condition. Additional confirmatory testing is required. A normal<br />

result does not exclude the presence of a catecholamine-secreting tumor. Elevated VMA values are<br />

suggestive of a pheochromocytoma, but they are not diagnostic.<br />

Reference Values:<br />

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!