{"id":"mch","name":"Mean Corpuscular Hemoglobin (MCH)","shortName":"MCH","aliases":["Mean Corpuscular Hemoglobin","MCH","Mean Cell Hemoglobin","MCH (pg)","Mean Cell Hgb","Mean Corpuscular Hgb","Mean cell haemoglobin","HCM","Mean Corpuscular Haemoglobin","Mean Cell Hb","MCH, Auto","Mean Corpuscular Hemoglobin (MCH)","Hemoglobina corpuscular media","TCMH"],"abbreviations":["MCH","HCM","TCMH"],"loinc":[{"code":"785-6","primary":true},{"code":"28539-5","primary":false}],"specimen":"whole-blood","units":[{"ucum":"pg","display":"pg"},{"ucum":"fmol","display":"fmol"}],"referenceRanges":[{"population":"18+","low":27,"high":33,"unit":"pg","unitDisplay":"pg","note":"The conventional adult interval of about 27–33 pg. Labs differ a little: Parkview prints 27.0–33.0; Labcorp prints 26.6–33.0 (the same on its sample reports for women aged 46 and 60 and a 15-year-old boy); ARUP prints 25.8–33.1; OHSU prints 27–34 from age 14; MedlinePlus lists 27–33 for men and 26–33 for women. In pregnancy, the NHS thalassaemia screening pathway uses 27 pg as its MCH cutoff, and a low MCH is the usual first flag for thalassemia trait. Children's intervals change with age and are not included here.","sources":[{"title":"Complete Blood Count with Differential (Parkview Laboratory test directory)","url":"https://lab.parkview.com/test-directory/complete-blood-count-with-differential/","publisher":"Parkview Health Laboratory"},{"title":"RBC indices","url":"https://medlineplus.gov/ency/article/003648.htm","publisher":"MedlinePlus, National Library of Medicine"},{"title":"Sample report, CBC, Platelet, No Differential (test 028142)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/028142.pdf","publisher":"Labcorp","year":2020},{"title":"Sample report, CBC With Differential/Platelet (test 005009)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/005009.pdf","publisher":"Labcorp"},{"title":"CBC with Platelet Count and Automated Differential (ARUP test 0040003), reference intervals effective March 1, 2021","url":"https://ltd.aruplab.com/api/ltd/hotline/0040003/44232","publisher":"ARUP Laboratories","year":2021},{"title":"CBC with Differential: reference ranges (OHSU Lab Services test directory)","url":"https://www.ohsu.edu/lab-services/cbc-differential","publisher":"Oregon Health & Science University Lab Services"},{"title":"SCT screening: handbook for antenatal laboratories","url":"https://www.gov.uk/government/publications/sct-screening-handbook-for-antenatal-laboratories/antenatal-screening","publisher":"NHS England (NHS Sickle Cell and Thalassaemia Screening Programme)","year":2024}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"How much hemoglobin, on average, each of your red blood cells carries.","url":"https://bloodtesttracker.com/markers/mch","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}