Haemodynamic changes accompanying lung oedema produced by iv injection of adrenaline or vasopressin into rats.

The blood pressure was investigated in the common left carotid artery (LC), in the left atrium (LA), in the pulmonary artery (PA) and in the right atrium (RA). After adrenaline injection the blood pressure rised rapid and simulatneously in all four regions. After vasopressin injection the blood pressures rised sequence in LC, in LA and PA. The blood pressure in RA in this time was unchanged. These results indicate that primary causes of the lung oedema after adrenaline or vasopressin are different.