Red Cell Distribution Width (RDW-CV)

14.1 %

In the usual range

Sep 18, 2026, Labcorp. 2 results in this record.

Judged against the usual range for this sex and age. The lab’s own range wasn’t on the report. The open ring is the result before this one.

Up 5.2% since Jun 7, 2025

That's within the usual test-to-test variation for RDW, which can be about 11% either way.

Assumes the same lab and similar conditions, like fasting and time of day.

Over time

RDW has been in the usual range at all 2 tests since Jun 2025.

In the usual range Above BelowNormal variation from the result before

Ask about Ruth’s RDW

AI assistant. It answers from this record’s own numbers and can still make mistakes, so check important details against the report. It doesn’t diagnose.

Compare with other tests

Each test is drawn by where it sits in its own usual range, so tests in different units share one chart. The shaded band is the usual range for each. Pick up to four.

RDWMCVHemoglobin

Among people like Ruth

Higher than about 71 of every 100 U.S. women aged 60–69.

At the first result (Jun 2025): lower than about 62 of every 100 U.S. women aged 60–69. Now: higher than about 71 of every 100 U.S. women aged 60–69.

Middle half of people (13.2–14.2)Middle 90% (12.6–15.9)Median

Ruth’s results over the U.S. range by ageShaded: middle 90% and middle 50% of people. Line: the median. %. Point at any age, or focus the chart and use the arrow keys, to read it in words.

Reference data derived from CDC/NCHS National Health and Nutrition Examination Survey (NHANES), cycles 2015-2016, 2017-March 2020 (pre-pandemic), August 2021-August 2023. Analysis by bloodtesttracker.com; not endorsed by CDC, NCHS or HHS.

Compared with 2,004 women aged 60–69 in the U.S. National Health and Nutrition Examination Survey (NHANES), 2015–2016, 2017–March 2020 (pre-pandemic), August 2021–August 2023. That’s everyone, not a healthy group, so common doesn’t mean ideal and uncommon doesn’t mean a problem. Labs’ methods differ a little. RDW at every age

Every result

Sep 18, 202614.1 % In the usual rangeUsual range 11.7–15.4 %Labcorp
Jun 7, 202513.4 % In the usual rangeUsual range 11.7–15.4 %Labcorp

Red Cell Distribution Width (RDW-CV)

14.1 %

In the usual range

Sep 18, 2026, Labcorp. 2 results in this record.

Judged against the usual range for this sex and age. The lab’s own range wasn’t on the report. The open ring is the result before this one.

Up 5.2% since Jun 7, 2025

That's within the usual test-to-test variation for RDW, which can be about 11% either way.

Assumes the same lab and similar conditions, like fasting and time of day.

Over time

RDW has been in the usual range at all 2 tests since Jun 2025.

In the usual range Above BelowNormal variation from the result before

Ask about Ruth’s RDW

AI assistant. It answers from this record’s own numbers and can still make mistakes, so check important details against the report. It doesn’t diagnose.

Compare with other tests

Each test is drawn by where it sits in its own usual range, so tests in different units share one chart. The shaded band is the usual range for each. Pick up to four.

RDWMCVHemoglobin

Among people like Ruth

Higher than about 71 of every 100 U.S. women aged 60–69.

At the first result (Jun 2025): lower than about 62 of every 100 U.S. women aged 60–69. Now: higher than about 71 of every 100 U.S. women aged 60–69.

Middle half of people (13.2–14.2)Middle 90% (12.6–15.9)Median

Ruth’s results over the U.S. range by ageShaded: middle 90% and middle 50% of people. Line: the median. %. Point at any age, or focus the chart and use the arrow keys, to read it in words.

Every result

Sep 18, 202614.1 % In the usual rangeUsual range 11.7–15.4 %Labcorp
Jun 7, 202513.4 % In the usual rangeUsual range 11.7–15.4 %Labcorp