{"id":"p1np","name":"P1NP (Procollagen Type 1 N-Terminal Propeptide)","shortName":"P1NP","aliases":["P1NP","PINP","Procollagen Type 1 N-Terminal Propeptide","Procollagen Type I N-Propeptide","Total P1NP","Intact P1NP","N-Terminal Propeptide of Type I Procollagen","Procollagen Type 1 N-Propeptide","Procollagen Type I Intact N-Terminal Propeptide","Procollagen Type 1 Intact N-Terminal Propeptide","Procollagen I Intact N-Terminal Propeptide","tP1NP","iP1NP","Serum P1NP","Procollagen Type I N-Terminal Propeptide"],"abbreviations":["P1NP","PINP","tP1NP","iP1NP"],"loinc":[{"code":"47255-5","primary":true},{"code":"77370-5","primary":false}],"specimen":"serum-or-plasma","units":[{"ucum":"ng/mL","display":"ng/mL"},{"ucum":"ug/L","display":"µg/L"}],"referenceRanges":[{"population":"Men, 18+","low":22,"high":105,"unit":"ng/mL","unitDisplay":"ng/mL","note":"ARUP Laboratories' interval for men, listed as 22-105 ug/L (the same number as ng/mL). ARUP does not state an age limit; this file applies it to adults 18 and older. Quest prints 30-110 ug/L for men 23 to 60 and no interval outside those ages. Total P1NP (Roche) and intact P1NP (IDS, Orion) give close but not identical results, so use the range on your own report.","sources":[{"title":"Procollagen Type I Intact N-Terminal Propeptide (test 0070236)","url":"https://ltd.aruplab.com/Tests/Pub/0070236","publisher":"ARUP Laboratories"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A blood marker of how fast new bone is being built. It is mostly used to follow bone treatment, not to screen healthy people.","url":"https://bloodtesttracker.com/markers/p1np","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}