NormRangeWhat the normal range is at your age — with the source printed on the page.

An absolute lymphocyte count of 0.3

0.3 ×10⁹/L
Severely low
Absolute lymphocyte count of 0.3 ×10⁹/L is in the severely low range by commonly reported adult reference ranges
Where it fallscommonly reported adult reference rangesSeverely low
Absolute lymphocyte count0.3×10⁹/L
Usual reference range1.0 – 4.8×10⁹/L
Severely lowthis readingunder 0.5×10⁹/L
Low0.5 – 0.9×10⁹/L
Normal1 – 4.8×10⁹/L
Above the reference range4.8 – 9.9×10⁹/L
Markedly raised10 and above×10⁹/L

Notes

  • One reading is not a diagnosis. Absolute lymphocyte count moves with viral infection, steroids, stress, and any recent illness. A clinician reads it against your history and usually against a repeat, not on its own.
  • Reference ranges differ between laboratories. The bands above follow commonly reported adult reference ranges. Your own report prints the range its analyser was calibrated against, and that printed range is the one to compare against — a difference of a few units between labs is normal and does not mean either is wrong.
  • A transient drop after a viral illness is the commonest reason for a low count, and it usually recovers within weeks. Steroids drop it sharply within hours. A persistently low count over months is the one that gets investigated.
  • A persistently raised lymphocyte count in an older adult is the usual route to a chronic lymphocytic leukaemia diagnosis, and it is frequently found by accident on a routine blood count in someone with no symptoms. In children and young adults, viral infection explains almost all of it.

What absolute lymphocyte count of 0.3 ×10⁹/L means

A result of 0.3 ×10⁹/L falls in Severely low by commonly reported adult reference ranges.

The usual reference range is 1.0 – 4.8 ×10⁹/L.

Reading it next to the rest of the panel

Almost no blood test answers a question on its own. Each one narrows the field, and what narrows it further is the value sitting beside it on the same report — which is why a printout with one figure circled is harder to interpret than the whole page.

The bands here come from a named source rather than a rounded rule of thumb. A threshold is a decision point somebody argued for in print, and knowing which document a line comes from is what separates a meaningful result from a borderline one.

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