Table 1.

Summary of interventions made for each pig in the experiment

Pig no.	Volume expansion					Dobutamine (µg/kg/min)		Dobutamine + volume expansion
	180 ml	360 ml	540 ml	720 ml	900 ml	2.5	5	180 ml
1	✓	✓	✓	✓	✓	×	✓	×
2	✓	✓	✓	✓	✓	×	✓	×
3	✓	✓	✓	✓	×	✓	×	✓
4	✓	✓	✓	✓	✓	×	✓	✓