Mean corpuscular volume (MCV)
Blood cell systemMean Corpuscular Volume measures the average size of red blood cells.
It helps diagnose different types of anemia - elevated in macrocytic anemia, decreased in microcytic anemia, and normal in normocytic anemia.
Reference range
Source: lab benchmark
Reference ranges may vary between labs and assays. Always interpret results with your healthcare provider. · LOINC code: 30428-7
Why this matters
MCV levels provide early insight into red blood cell health before obvious symptoms like fatigue or weakness occur. Low MCV often indicates iron deficiency or chronic disease, while high MCV may point to vitamin B12 or folate deficiency or liver issues. MCV is also useful for distinguishing different types of anemia, helping guide appropriate dietary or medical interventions. Maintaining a balanced diet with adequate iron, B12, and folate, and monitoring any underlying health conditions, helps support healthy red blood cells and effective oxygen delivery.
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