The pressure in the left ventricle after diastole is called which term?

Study for the Paramedic Aandamp;P Exam. Engage with flashcards and multiple choice questions, complete with hints and explanations. Prepare effectively for your exam!

Multiple Choice

The pressure in the left ventricle after diastole is called which term?

Preload describes the filling state of the ventricle just before contraction—the stretch of the ventricular muscle fibers at the end of diastole. The pressure inside the left ventricle after it has filled reflects how much it has stretched, which is what preload is about. A higher end-diastolic pressure indicates greater preload, and through the Frank-Starling mechanism, this increased stretch tends to produce a stronger subsequent contraction. Afterload is the pressure the ventricle must overcome to eject blood during systole (the aortic pressure), which is different from the filling-driven preload. The other terms listed (informed consent, duty to act) aren’t related to ventricular mechanics.

Preload describes the filling state of the ventricle just before contraction—the stretch of the ventricular muscle fibers at the end of diastole. The pressure inside the left ventricle after it has filled reflects how much it has stretched, which is what preload is about. A higher end-diastolic pressure indicates greater preload, and through the Frank-Starling mechanism, this increased stretch tends to produce a stronger subsequent contraction. Afterload is the pressure the ventricle must overcome to eject blood during systole (the aortic pressure), which is different from the filling-driven preload. The other terms listed (informed consent, duty to act) aren’t related to ventricular mechanics.

More practice questions