{"id":"monocytes-percent","name":"Monocytes (Percent)","shortName":"Monocytes %","aliases":["Monocytes %","Monocytes","Mono %","Monos","Mono%","Monocyte Percent","Monocitos %","Monozyten %","Monocytes, %","Monocytes (%)","Monocytes Percentage","Monocyte %","Monocytes Percent","Relative Monocytes","Monocitos"],"abbreviations":["Mono%","MONO%"],"loinc":[{"code":"5905-5","primary":true},{"code":"26485-3","primary":false},{"code":"744-3","primary":false},{"code":"71677-9","primary":false}],"specimen":"whole-blood","units":[{"ucum":"%","display":"%"},{"ucum":"1","display":"fraction (0–1)"}],"referenceRanges":[{"population":"Adults","low":4.1,"high":12.4,"unit":"%","unitDisplay":"%","note":"ARUP's interval for ages 4 months and older, from one lab. Labcorp prints 'Not Estab.' (no interval established) for the monocyte percent on its CBC with differential, and Quest's test directory points to the lab report instead of publishing a range. MedlinePlus lists a narrower 2% to 8%, so published figures vary. The absolute monocyte count is the better number to interpret.","sources":[{"title":"CBC with Platelet Count and Automated Differential (test 0040003), hotline effective March 1, 2021","url":"https://ltd.aruplab.com/api/ltd/hotline/0040003/44232","publisher":"ARUP Laboratories","year":2021},{"title":"CBC With Differential/Platelet, sample patient report (test 005009)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/005009.pdf","publisher":"Labcorp"},{"title":"CBC (includes Differential and Platelets) (test code 6399)","url":"https://testdirectory.questdiagnostics.com/test/test-detail/6399/cbc-includes-differential-and-platelets?cc=MASTER","publisher":"Quest Diagnostics"},{"title":"Blood differential test","url":"https://medlineplus.gov/ency/article/003657.htm","publisher":"MedlinePlus, National Library of Medicine"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The share of your white blood cells that are monocytes. The absolute monocyte count is usually the more useful number.","url":"https://bloodtesttracker.com/markers/monocytes-percent","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}