Purser Wellness approved rule
Unit: µmol/L
Male: 0.00-0.40
Female: 0.00-0.40
How to read this marker
More specific for cellular B12 deficiency; kidney impairment can elevate.
The wider testing context
Iron studies are most useful as a pattern. Collection time, fasting status, inflammation, liver disease, and supplementation can shift results.
Using this reference
This is the approved adult, nonpregnant baseline unless the rule explicitly states otherwise. Keep the performing laboratory’s reference interval separate from this Purser Wellness rule. Match units and review the specimen, method, timing, medicines and relevant clinical context before interpreting a result. These pages do not calculate a personal high/low status or prescribe treatment.
A question to bring to your visit
Which parts of the Methylmalonic acid rule apply to my report’s method, units and collection conditions, and what other findings should we review alongside it?
Approved by Dr. Daniel Purser, MD · PW-LABS-1.0. The source laboratory’s interval remains separate.
Names you may see
Methylmalonic acid