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. 2015 Mar 4;10(3):e0115739. doi: 10.1371/journal.pone.0115739

Table 1. Hematology and plasma biochemistry reference intervals and 90% confidence intervals for a population of 191 apparently healthy juvenile loggerhead sea turtles (Caretta caretta) sampled in Core Sound, North Carolina, USA from 2004–2007.

Parameter Unit N a Median (Range) Lower limit (90% CI) Upper limit (90% CI)
Packed cell volume % 190 31.0 (9.0–40.0) 17.0 (10.0–20.0) 39.0 (38.0–40.0)
Estimated white blood cell count X 109/L 190 9.0 (2.0–27.0) 5.0 (2.0–5.0) 19.0 (16.0–27.0)
Heterophils X 109/L 190 4.7 (0.0–21.6) 0.0 (0.0–0.8) 13.6 (12.2–16.1)
Lymphocytes X 109/L 190 3.4 (0.6–9.2) 1.0 (0.7–1.1) 7.9 (7.2–9.2)
Monocytes X 109/L 190 0.14 (0.0–1.6) 0.0 (0.0–0.0) 1.0 (0.8–1.6)
Eosinophils X 109/L 190 0.3 (0.0–4.8) 0.0 (0.0–0.0) 2.9 (1.6–4.0)
Basophils X 109/L 190 0.0 (0.0–0.5) 0.0 (0.0–0.0) 0.3 (0.2–0.4)
Azurophils X 109/L 190 0.0 (0.0–1.2) 0.00 (0.0–0.0) 0.63 (0.5–1.2)
Total protein g/L 191 35.0 (21.0–60.0) 22.8 (22.0–24.0) 52.2 (47.0–53.0)
Albumin g/L 191 11.0 (4.0–17.0) 5.0 (5.0–6.0) 16.0 (16.0–17.0)
Glucose mmol/L 191 5.8 (2.5–12.9) 3.7 (3.1–4.1) 9.1 (8.3–10.2)
Aspartate aminotransferase U/L 191 161.0 (50.0–390.0) 84.4 (76.0–93.0) 304.8 (269.0–362.0)
Calcium mmol/L 191 1.9 (1.3–2.9) 1.4 (1.3–1.5) 2.5 (2.4–2.6)
Phosphorus mmol/L 191 2.2 (1.2–3.6) 1.4 (1.3–1.6) 3.3 (3.1–3.6)
Calcium/phosphorus ratio mmol/L/mmol/L 191 0.8 (0.4–1.8) 0.5 (0.4–0.6) 1.4 (1.3–1.6)
Sodium mmol/L 191 156.0 (145.0–168.0) 150.0 (145.0–150.0) 163.0 (162.0–165.0)
Potassium mmol/L 191 4.2 (2.5–6.1) 2.9 (2.5–3.1) 5.2 (5.1–5.7)
Chloride mmol/L 191 115.0 (101.0–129.0) 103.0 (102.0–107.0) 125.0 (123.0–125.0)
Globulin g/L 191 24.0 (13.0–46.0) 14.0 (14.0–16.0) 37.0 (33.0–38.0)
Creatine phosphokinase U/L 191 1,034.0 (153.0–13,310.0) 249.4 (165.0–297.0) 4409.0 (3782.0–5123.0)
Uric acid μmol/L 191 47.6 (5.9–166.5) 6.0 (6.0–11.9) 142.8 (113.0–142.8)
Reference interval partitioned based on season
Blood urea nitrogen mmol/L
 Fall sampling period 78 33.7 (11.8–62.8) 13.1 (11.0–15.7) 61.3 (56.5–65.9)
 Summer sampling period 113 23.6 (6.1–67.8) 7.2 (6.1–8.6) 63.9 (56.8–71.0)

aSample sizes varied among analytes for reference interval estimation due to missing data for a few hematological analytes.