vma
vma — noun
1. a substance produced naturally in the body that passes out through urine; doctor
a substance produced naturally in the body that passes out through urine; doctors measure its level in a patient's urine to help identify certain types of cancer, especially a childhood cancer called neuroblastoma.
Dr. Chen ordered a VMA test for Mei after finding a lump in her belly.
clinical context: ordering a diagnostic test
The lab results showed that Mr. Okafor's VMA level was within the normal range.
collocation: VMA level
High VMA levels in a child's urine can help doctors find neuroblastoma early.
The nurse at Taipei Children's Hospital explained how the simple VMA test works.
Researchers measured VMA in urine samples from fifty children at the hospital.
用法筆記
VMA is a medical abbreviation used primarily in pediatric oncology. It always appears in uppercase letters in medical reports and lab orders. The full chemical name 'vanillylmandelic acid' is rarely written out in clinical settings.