Table 3. Biological markers taken in group 1 CHF dogs.

Analyte	Reference Interval	Pre-embolization	Post-embolization	Post-device implant, week 0)	Week 6	Week 12
BUN (mg/dL)	8–22	14 ± 3 (n = 16)	14 ± 4 (n = 16)	13 ± 3 (n = 16)	12 ± 3 (n = 8)	12 ± 2 (n = 8)
Creatinine (mg/dL)	0.6–1.1	0.9 ± 0.1 (n = 16)	0.9 ± 0.1 (n = 16)	0.8 ± 0.1 (n = 16)	0.9 ± 0.1 (n = 8)	0.9 ± 0.1 (n = 8)
Epinephrine (ng/mL)	< 3	0.095 ± 0.115 (n = 6)	0.069 ± 0.083 (n = 9)	0.044 ± 0.115 (n = 16)	0.039 ± 0.062 (n = 8)	0.007 ± 0.010 (n = 8)
Norepinephrine (ng/mL)	< 3	0.077 ± 0.054 (n = 6)	0.158 ± 0.189 (n = 9)	0.046 ± 0.035 (n = 16)	0.018 ± 0.020 (n = 8)	0.011 ± 0.018 (n = 8)

CHF: congestive heart failure; BUN: blood urea nitrogen. Data are presented as mean ± SD, n: number of samples.