Table 5.

Original biochemical reference intervals (RI) in lithium-heparinized plasma from 59 healthy adult Southern giant pouched rats (Cricetomys ansorgei) before outlier removal. Results were obtained with the Hitachi P Modular (most analytes) and Cobas 501 (lipase) biochemical analyzers. Only analytes for which outliers were removed from the final RIs (Table 7) are shown. The reason for each outlier removal is provided below the table. None of the data required transformation.

		Descriptive statistics				RI with 90% CI
Analyte	Units	Mean	Median	SD	Min/Max	RI	Lower Limit	Upper Limit	n	Distribution
Potassium	mmol/L	4.9	4.8	0.5	4.0-6.5	4.1-6.2	4.0-4.2	5.6-6.5	59	NG
Sodium:Potassium		30	30	3	22-36	23-35	22-25	34-36	59	NG
Bicarbonate	mmol/L	31	31	3	20-37	23-37	20-27	35-37	59	NG
Anion gap	mmol/L	19	19	4	9-38	12-32	9-15	23-38	59	NG
CK	IU/L	361	331	115	228-877	232-767	228-238	544-877	59	NG
Triglycerides	mmol/L	1.2	1.0	0.6	0.5-4.2	0.5-3.5	0.5-0.7	1.9-4.2	59	NG

Min/Max: Minimum/Maximum; CK: Creatine kinase; NG = Nongaussian

Outliers removed

Potassium and Sodium:Potassium: One outlier; #53, K 6.5 mmol/L – Possible outlier on program and visually.

Bicarbonate and anion gap: One outlier; #23, bicarbonate 20 mmol/L; anion gap 38 mmol/L – Outlier on program and visually.

CK: One outlier; #65, CK 877 IU/L – Outlier on program and visually.

Triglycerides: One outlier; #38, triglycerides 4.2 mmol/L – Outlier on the program and visually.