Answer:
A patient with inadequate stroke volume related to decreased preload may benefit from fluid administration to increase the volume of blood in the ventricles before contraction. This will increase the stretch of the cardiac muscle fibres and enhance the contractility of the heart, according to the Frank-starling law. The nurse may anticipate that the patient will receive intravenous fluids, such as normal saline or lactated Ringer's solution, to expand the intravascular volume and improve preload. The nurse should monitor the patient's vital signs, urine output, and signs of fluid overload, such as pulmonary edema or jugular venous distension. The nurse should also assess the patient's response to fluid therapy by measuring the stroke volume, cardiac output, and other hemodynamic parameters, using methods such as echocardiography, ultrasound, or pulse pressure variation.