Urinary Fractional Clearance of Sodium in 8 Healthy Beagle Dogs Fed Normal, Low, or Ultralow Sodium Diets

Table 1

Fractional clearance of sodium (FCNa), serum sodium, and urine sodium concentrations in dogs fed normal (0.26%), low (0.18%), and ultralow (0.06%) sodium diets.

	Diets	Mean	Median	SD	Range
FCNa (%)	Normal	0.62	0.5	0.52	0–2.69
	Low	1.29	0.77	1.48	0.04–8.57
	Ultra	0.47	0.15	0.79	0–5.32
Serum sodium (mmol/l)	Normal	148.06	148	1.50	144–151
	Low	148.93	149	2.06	141–154
	Ultra	148.12	148	2.41	141–155
Urine sodium (mmol/l)	Normal	61.85	50	41.03	0–180
	Low	74	70	33.63	10–200
	Ultra	29	20	35.53	0–190