NURS 310 Final: final #9
Document Summary
Hypertension = high blood pressure, and is the most common cv disease. Secondary - caused by identifiable factors, such as excessive epinephrine or narrowing of renal arteries. *lo1* - prolonged htn can lead to damage of small blood vessels resulting in arterial narrowing. This narrowing can lead to angina, myocardial infarction, peripheral vascular disease. A serious consequence of htn is how much harder the heart has to work to pump blood. Excessive cardiac workload can cause the heart to fail and lungs to fill with fluid (aka heart failure ). Damaging vessels that supply the brain can lead to tia"s and strokes. Cardiac output - volume of blood pumped per minute. Co is determined by heart rate and stroke volume (amount of blood pumped by ventricle in one contraction) Peripheral resistance - turbulence-induced friction in arteries. Think: drugs that affect co, stroke volume or heart rate can affect bp.
