{"id":"rbc","name":"Red Blood Cell Count","shortName":"RBC","aliases":["RBC","Erythrocytes","Red Cell Count","RBC Count","Total RBC Count","Erythrocyte Count","RCC","Hematíes","Red Blood Cell Count","Red Blood Cell (RBC) Count","Glóbulos rojos","Eritrocitos"],"abbreviations":["RBC","RCC"],"loinc":[{"code":"789-8","primary":true},{"code":"26453-1","primary":false},{"code":"790-6","primary":false}],"specimen":"whole-blood","units":[{"ucum":"10*6/uL","display":"×10⁶/µL"},{"ucum":"10*12/L","display":"×10¹²/L"},{"ucum":"/uL","display":"cells/µL"}],"referenceRanges":[{"population":"Men, 18+","low":4.3,"high":5.7,"unit":"10*6/uL","unitDisplay":"×10⁶/µL","note":"The American Board of Pathology lists 4.3–5.7 for men. Other published intervals for men: Labcorp 4.14–5.80 (shown on a sample report for a 15-year-old male; Labcorp's adult male interval was not confirmed), Health NZ Waikato 4.3–6.0, OHSU 4.5–6.0, University of Iowa 4.5–6.2.","sources":[{"title":"Hematopathology reference ranges","url":"https://abpath.org/hematopathology-reference-ranges","publisher":"American Board of Pathology"},{"title":"CBC With Differential/Platelet (test 005009), sample report","url":"https://files.labcorp.com/testmenu-d8/sample_reports/005009.pdf","publisher":"Labcorp","year":2024},{"title":"CBC reference intervals (HEM-2597.01)","url":"https://lab.waikatodhb.health.nz/assets/test-attachments/230/CBC-reference-intervals.pdf","publisher":"Te Whatu Ora Health New Zealand, Waikato","year":2024},{"title":"Heme Reference Ranges (updated 6/5/18)","url":"https://www.ohsu.edu/sites/default/files/2019-07/cbcrefrange.pdf","publisher":"Oregon Health & Science University","year":2018},{"title":"CBC (Complete Blood Count), Pathology Handbook","url":"https://www.healthcare.uiowa.edu/path_handbook/handbook/test299.html","publisher":"University of Iowa Hospitals & Clinics"}]},{"population":"Women, 18+","low":3.9,"high":5,"unit":"10*6/uL","unitDisplay":"×10⁶/µL","note":"The American Board of Pathology lists 3.9–5.0 for women. Other published adult intervals for women: Labcorp 3.77–5.28, Health NZ Waikato 3.6–5.6, OHSU 4.0–5.2, University of Iowa 4.0–5.2.","sources":[{"title":"Hematopathology reference ranges","url":"https://abpath.org/hematopathology-reference-ranges","publisher":"American Board of Pathology"},{"title":"CBC, Platelet, No Differential (test 028142), sample report","url":"https://files.labcorp.com/testmenu-d8/sample_reports/028142.pdf","publisher":"Labcorp","year":2020},{"title":"CBC reference intervals (HEM-2597.01)","url":"https://lab.waikatodhb.health.nz/assets/test-attachments/230/CBC-reference-intervals.pdf","publisher":"Te Whatu Ora Health New Zealand, Waikato","year":2024},{"title":"Heme Reference Ranges (updated 6/5/18)","url":"https://www.ohsu.edu/sites/default/files/2019-07/cbcrefrange.pdf","publisher":"Oregon Health & Science University","year":2018},{"title":"CBC (Complete Blood Count), Pathology Handbook","url":"https://www.healthcare.uiowa.edu/path_handbook/handbook/test299.html","publisher":"University of Iowa Hospitals & Clinics"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The number of red blood cells in a sample of your blood. These cells carry oxygen from your lungs to the rest of your body.","url":"https://bloodtesttracker.com/markers/rbc","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}