Is the cardiac output equal to the pulse rate times peripheral resistance?

No, cardiac output is not equal to pulse rate times peripheral resistance. Cardiac output is the product of heart rate (pulse rate) and stroke volume, which is the amount of blood pumped by the heart with each beat. Peripheral resistance refers to the resistance blood encounters as it flows through the blood vessels, which influences blood pressure but is not directly part of the equation for cardiac output. Thus, the relationship between these variables is more complex and involves additional factors.