NURS 212 Exam 1 (Guaranteed A+)

Arterial blood pressure correct answers a measurement of the pressure (mmHg) exerted by the blood as it flows through the arteries Blood pressure _____ as the heart contracts and _____ as the heart relaxes. correct answers rises; falls What is blood pressure measured in? correct answers millimeters of mercury (mmHg) and it's recorded as a fraction What is the systolic number in blood pressure? correct answers -the top photo (numerator) -it is a result of the ventricles of the heart -peak pressure What is the diastolic number in blood pressure? correct answers -the bottom number (denominator) -the pressure when the ventricles are at rest or during ventricular relaxation -the residual pressure How is blood pressure (BP) written? correct answers systolic over diastolic What is pulse pressure? correct answers the difference between the systolic and diastolic pressure What is the normal BP reading for an adult? correct answers less than 120/80 (a rise or fall of 20 to 30 mmHg is considered significant) Why is cardiac output a determinant of blood pressure? correct answers Cardiac output refers to how much blood the heart is pumping out. The more output, the more pressure the heart will have. Why is dehydration a determinant of blood pressure? correct answers If you have less fluid, your blood pressure will be hypotensive (small) Why is hemorrhage a determinant of blood pressure? correct answers When you bleed out, the closed system has a leak and will lead to a low volume. Why is movement a determinant of blood pressure? correct answers When you're active, your blood pressure will be higher. If you're sitting, your blood pressure will be lower. What are the factors affecting BP? correct answers -age -circadian rhythm -gender -food intake -exercise