Included with every panel
Baseline labs come free with any panel you build.
Other tests
Absolute Metamyelocytes test
The absolute number of metamyelocytes (immature neutrophil precursors), normally zero in circulating blood. Included with every panel.
At a glance
In about 5 days
Most results are ready in about 5 days. Some specialty markers can take up to 21 days.
Check before your draw
This marker has no preparation tag, but it can still need preparation. Contact us before your draw if you’re not sure.
Walk in at Quest
Your lab order arrives by email. Most Quest locations take walk-ins, so bring it with a photo ID.
What it measures
Checks for metamyelocytes, young white blood cells that usually stay in your bone marrow, the soft tissue inside bones, until they mature. Normally few or none are found in the blood.
Why it matters for women
White cell counts can rise naturally in pregnancy and right after giving birth, and a few young cells like these can show up then too. Outside pregnancy, they can be linked to a significant infection or inflammation, and your result is read alongside the rest of your blood count.
You might check it if…
- you’re running a fever or fighting an infection
- a past blood count showed a high white cell count
- a doctor wants a closer look at your white blood cells
What your result may mean
High Absolute Metamyelocytes: what it may mean
A high or measurable metamyelocyte count may mean your bone marrow is releasing young white blood cells early, in response to a severe infection or because of a marrow disorder. Major inflammation, injury or growth-factor medicines can also push them into the blood. In pregnancy and right after giving birth, a few of these young cells can show up and may be expected. Any symptoms can depend on the reason, such as fever with an infection. Your clinician may read this result alongside your neutrophils and total white cell count.
Low Absolute Metamyelocytes: what it may mean
A low or zero metamyelocyte count can be normal for women and men alike. Metamyelocytes are a late stage in a neutrophil's growth, one step before bands, and healthy blood may hold few or none because they can finish maturing in the bone marrow. A zero result can't tell you how many mature neutrophils are in your blood, so your absolute neutrophil count may say more about your infection defenses. This result may not need any follow-up by itself.
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These notes provide context and do not diagnose a condition. Not yet available in NY, NJ, RI, HI, ND, SD or WV.