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Part III: Epochal Hematology
Full-Term Infants
Reference Values for Coagulation Tests in Preterm and Full-Term Infants*
Day 180 Adults Day 180 Day 30 Day 1 12.4 (10.8–13.9) 12.3 (10.7–13.9) 11.8 (10.0–14.3) 13.0 (10.1–15.9) 12.5 (10.0–15.0) 0.89 (0.64–1.17) 0.88 (0.61–1.17) 0.79 (0.53–1.26) 1.00 (0.53–1.62) 0.91 (0.53–1.48) 33.5(26.6–40.3) 35.5(28.1–42.9) 40.4(32.0–55.2) 42.9(31.3–54.5) 37.5(27.2–53.5) 25.0 (19.7–30.3) 25.5 (19.8–31.2) 24.3 (19.4–29.2) 23.5 (19.0–28.3) 2.78 (1.56–4.00) 2.51 (1.50–3.87) 2.70 (1.62–3.78) 2.83 (1.67–3.99) 2.28 (1.50–3.60) 1.08(0.70–1.46) 0.88(0.60–1.16) 0.68(0.34–1.02) 0.48(0.26–0.70) 0.87(0.51–1.23) 1.06(0.62–1.50) 0.91(0.55–1.27) 0.98(0.62–1.34) 0.72(0.34–1.08) 1.02
Preterm 30–36-Week Infants Day 30 11.8 (10.0–13.6) 0.79 (0.53–1.11) 44.7(26.9–62.5) 25.2 (18.9–31.5) 2.54 (1.50–4.14) 0.57(0.36–0.95) 1.02(0.48–1.56) 0.83(0.21–1.45) 1.11(0.50–1.99) 1.36(0.66–2.16) 0.44(0.13–0.80) 0.56(0.20–0.92) 0.43(0.15–0.71) 0.43(0.11–0.75) 0.59(0.31–0.87) 0.64(0.16–1.12) 0.99(0.51–1.47) 1.07(0.57–1.57)
13.0 (10.6–16.2) 1.0 (0.61–1.70) 53.6(27.5–79.4) 24.4 (18.8–29.9) 2.43 (1.50–3.73) 0.45(0.20–0.77) 0.88(0.41–1.44) 0.67(0.21–1.13) 1.11(0.50–2.13) 1.36(0.78–2.10) 0.35(0.19–0.65) 0.41(0.11–0.71) 0.30(0.08–0.52) 0.38(0.10–0.66) 0.33(0.09–0.57) 0.49(0.09–0.89) 0.70(0.32–1.08) 0.81(0.35–1.27) population. The range of values encompassing 95 percent of the population is shown in parentheses.
Day 1 haemostasis: Secondary haemostasis. Sem in Fetal and Neonatal Medicine 16:294–300, 2011.
Preterm 28–31-Week Infants Day 1 15.4 (14.6–16.9) 108(80.0–168) 24.8 (19.2–30.4) 2.56 (1.60–5.50) 0.31(0.19–0.54) 0.65(0.43–0.80) 0.37(0.24–0.76) 0.79(0.37–1.26) 1.41(0.83–2.23) 0.18(0.17–0.20) 0.36(0.25–0.64) 0.23(0.11–0.33) 0.25(0.05–0.35) 0.26(0.15–0.32) 0.32(0.19–0.52)
TABLE 7–6. Coagulation Test PT(s) INR APTT(s) TCT(s) Fibrinogen (g/L) II (U/mL) V (U/mL) VII (U/mL) VIII (U/mL) VWF (U/mL) IX (U/mL) X (U/mL) XI (U/mL) XII (U/mL) PK (U/mL) HK (U/mL) XIIIa (U/mL) XIIIb (U/mL) time; VWF, von Willebrand factor.
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