{"id":"hemoglobin","name":"Hemoglobin","shortName":"Hemoglobin","aliases":["Hgb","Hb","Haemoglobin","Hemoglobin Total","Hemoglobin (Hb)","Hemoglobina","HGB","Hemoglobin, Total","Hemoglobin, Whole Blood","Hemoglobin Concentration","Haemoglobin (Hb)","Hemoglobine","Hämoglobin","Emoglobina","Hb (Haemoglobin)","Hemoglobin (Calculated)"],"abbreviations":["Hgb","Hb","HGB"],"loinc":[{"code":"718-7","primary":true},{"code":"59260-0","primary":false},{"code":"30350-3","primary":false},{"code":"30352-9","primary":false},{"code":"20509-6","primary":false}],"specimen":"whole-blood","units":[{"ucum":"g/dL","display":"g/dL"},{"ucum":"g/L","display":"g/L"},{"ucum":"mmol/L","display":"mmol/L"}],"referenceRanges":[{"population":"Men, 16+","low":13,"high":17.7,"unit":"g/dL","unitDisplay":"g/dL","note":"Labcorp's interval for men older than 15 (the primary one here). Other labs differ: Mayo Clinic Laboratories 13.2-16.6 g/dL, ARUP 14.8-17.8 g/dL (age 18 and older), Health NZ Waikato 130-175 g/L (age 16 and older). These are lab reference intervals rather than anemia cutoffs; WHO's anemia cutoff for men aged 15 to 65 is 13.0 g/dL.","sources":[{"title":"Critical (Panic) Values, with adult reference intervals (document DX_TL_811850, January 2024)","url":"https://www.labcorp.com/content/dam/labcorp/drupal/811850_DX_TL_Critical(Panic)Values011924_FINAL.pdf","publisher":"Labcorp","year":2024},{"title":"Pediatric Testing Reference Ranges (CBC With Differential/Platelet, test 005009)","url":"https://www.labcorp.com/content/dam/labcorp/drupal/178250_DX_TL_PediatricTestRef_Final.pdf","publisher":"Labcorp","year":2022},{"title":"CBC - Overview: Complete Blood Cell Count (CBC) with Differential, Blood","url":"https://www.mayocliniclabs.com/test-catalog/Overview/9109","publisher":"Mayo Clinic Laboratories"},{"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 reference intervals (procedure HEM-2597.01, effective 14 November 2024)","url":"https://lab.waikatodhb.health.nz/assets/test-attachments/230/CBC-reference-intervals.pdf","publisher":"Te Whatu Ora Health New Zealand, Waikato","year":2024}]},{"population":"Women, 16+","low":11.1,"high":15.9,"unit":"g/dL","unitDisplay":"g/dL","note":"Labcorp's interval for women older than 15 (the primary one here). Other labs differ: Mayo Clinic Laboratories 11.6-15.0 g/dL, ARUP 12.6-15.9 g/dL (age 18 and older), Health NZ Waikato 115-155 g/L (age 16 and older). The WHO anemia cutoff for non-pregnant women is 12.0 g/dL, which sits inside this interval because the two answer different questions.","sources":[{"title":"Critical (Panic) Values, with adult reference intervals (document DX_TL_811850, January 2024)","url":"https://www.labcorp.com/content/dam/labcorp/drupal/811850_DX_TL_Critical(Panic)Values011924_FINAL.pdf","publisher":"Labcorp","year":2024},{"title":"Pediatric Testing Reference Ranges (CBC With Differential/Platelet, test 005009)","url":"https://www.labcorp.com/content/dam/labcorp/drupal/178250_DX_TL_PediatricTestRef_Final.pdf","publisher":"Labcorp","year":2022},{"title":"CBC - Overview: Complete Blood Cell Count (CBC) with Differential, Blood","url":"https://www.mayocliniclabs.com/test-catalog/Overview/9109","publisher":"Mayo Clinic Laboratories"},{"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 reference intervals (procedure HEM-2597.01, effective 14 November 2024)","url":"https://lab.waikatodhb.health.nz/assets/test-attachments/230/CBC-reference-intervals.pdf","publisher":"Te Whatu Ora Health New Zealand, Waikato","year":2024}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The oxygen-carrying protein in your red blood cells. It is the main number used to check for anemia.","url":"https://bloodtesttracker.com/markers/hemoglobin","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}