Complete Blood Count (CBC)Immature platelet fraction
The share of platelets that were just released from the bone marrow. It shows whether the marrow is actively replacing platelets.
What it measures
Newly released platelets still carry residual RNA, and analyzers can pick that signal out. The immature platelet fraction is that young slice, usually reported as a percent of all platelets. It is a production signal: the marrow’s answer to the question “are you making new platelets?”
Why it is on the panel
A low platelet count has two broad stories, destruction and under-production. This fraction helps tell them apart before anyone orders a more involved workup.
How to read it
Read it only with the platelet count and MPV. A high fraction next to a low count means platelets are leaving the circulation and the marrow is responding. A low fraction next to a low count means the response is thin.
When it runs higher
The fraction rises when platelets are being consumed or destroyed and the marrow is compensating. Recovery from chemotherapy or from a suppressed count can raise it too, which in that setting is a welcome sign.
When it runs lower
A low fraction means few new platelets are entering the blood. That pattern fits reduced marrow output more than rapid destruction. One result is a clue. The trend, and the rest of the CBC, fill it in.
How to use this page
This page explains what the measurement is for. It is educational. Your Healiam report includes the reference interval for your age and sex, and a clinician reads that result with your history, medicines, and the rest of the panel. Talk with a clinician before changing diet, supplements, or treatment because of a number on a report.
Immature platelet
Immature platelet is part of the full panel.
No referral or insurance required.
One preventive draw covers this measurement and the rest of the Healiam panel. CLIA-certified results come back in days.