What is the normal pressure for the pulmonary artery?

The normal pressure in the pulmonary artery is generally accepted to be around 25/10 mmHg, which is represented by choice B. In the context of cardiology and hemodynamics, these values reflect the pressures during systole and diastole in the pulmonary circulation.

To elaborate, the systolic pressure of approximately 25 mmHg indicates the pressure exerted by the blood against the arterial walls when the right ventricle contracts and pushes blood into the pulmonary artery. The diastolic pressure of about 10 mmHg represents the pressure in the pulmonary artery when the heart is at rest between beats, during the filling phase.

These values are important for assessing pulmonary artery function and diagnosing potential issues such as pulmonary hypertension, which can occur if the pressures are significantly elevated. Understanding the normal ranges allows for effective monitoring and intervention in patients with cardiac or pulmonary conditions.

Other choices may reflect pressure values that do not fall within the typical range for healthy individuals or represent abnormal conditions. Thus, the choice of 25/10 mmHg is supported by clinical knowledge of normal pulmonary arterial pressures.