Several factors can influence left ventricular function, including hypertension, coronary artery disease, myocardial infarction, and cardiomyopathy. For instance, hypertension can cause the left ventricle to thicken and become less efficient at pumping blood. Nurses should monitor patients for risk factors such as high blood pressure, high cholesterol, diabetes, and smoking, as these can all negatively impact left ventricular function.