What is the normal splenic volume index range?

What is the normal splenic volume index range?

• A. 50 to 100
• B. 1 to 10
• C. 8 to 35
• D. 20 to 60

Answer: (C)

The main idea is that spleen size should be interpreted in the context of body size, so a splenic volume index is used to normalize it. Ultrasound estimates splenic volume (often using the ellipsoid volume formula from measured length, width, and thickness) and then this volume is divided by a body size metric such as body surface area. The normal range for this index is about 8 to 35, so most healthy adults fall within this span. Values above the upper limit point to splenomegaly, while values below the lower limit suggest a smaller-than-normal spleen or measurement variation. This normalization helps distinguish true enlargement from normal variation due to body habitus.

The main idea is that spleen size should be interpreted in the context of body size, so a splenic volume index is used to normalize it. Ultrasound estimates splenic volume (often using the ellipsoid volume formula from measured length, width, and thickness) and then this volume is divided by a body size metric such as body surface area. The normal range for this index is about 8 to 35, so most healthy adults fall within this span. Values above the upper limit point to splenomegaly, while values below the lower limit suggest a smaller-than-normal spleen or measurement variation. This normalization helps distinguish true enlargement from normal variation due to body habitus.