Early drop in hemoglobin is indeed a marker of the likelihood of significant injury.
Timothy Craig
TC
Hardcastle
D001027:Aortography; D015415:Biomarkers / Q000097:blood; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D015601:Injury Severity Score; D019838:Neck Injuries / Q000150:complications / Q000175:diagnosis; D011237:Predictive Value of Tests; D018570:Risk Assessment; D012307:Risk Factors; D013348:Subclavian Artery / Q000000981:diagnostic imaging / Q000293:injuries*; D013997:Time Factors; D014950:Wounds, Penetrating / Q000150:complications* / Q000175:diagnosis
D015415:Biomarkers; D006454:Hemoglobins