Table 2.

Mean concentrations of urine GGT/Cr, AP/Cr (IU/mmol Cr) Prot/Cr (mg/mg) and glucose in horses with surgical colic (n = 5) and in healthy controls (n = 7).

		mean ± s.d. (range)	Reference values for adult horses
Control	U-Prot/Cr (mg/μmol Cr × 8.84)	1.06 ± 1.40 (0.33–4.17)	<2.0 [27]
Colic		2.17 ± 2.20 (0.67–5.94)
Control U-GGT/Cr (IU/mmol)		1.14 ± 0.53 (0.34–1.94)	1.13 ± 0.54 [31]
Colic		5.87 ± 10.61(0.90–24.87)
Control U-AP/Cr (IU/mmol)		1.93 ± 1.17 (0.56–3.6)	2.10 ± 1.45 [33]
Colic		3.13 ± 2.17 (1.12–6.45)
Control U-Glucose (+drystix)		0.00	<00 [27]
Colic		0.80