End diastolic volume - Study guides, Class notes & Summaries

PHYS 261 FINAL EXAM study guide verified 2023/2024 updates Match each term with its definition. A. cardiac output (CO) B. heart rate (HR) C. end-diastolic volume (EDV) D. stroke volume (SV) E. end-systolic volume (ESV)the volume of blood pumped out of the heart from one ventricle during one contraction - D. stroke volume (SV) The rapid depolarization phase of the action potentials of myocardial contractile cells is due to which ion(s)? Ca2+ only K+ only Na+ only both...

Air Methods Critical Care Exam(correct answers 2023) Before PFT's how long should a patient refrain from smoking? Using an inhaler? - CORRECT ANSWER-smoking: 6-8 h inhaler: 4-6 h What test must you do before performing an arterial puncture? - CORRECT ANSWERAllen's test; patency of the ulnar artery- if blood returns to hand in 15s, then the radial artery can be used for the puncture How long should one apply pressure after an arterial puncture? - CORRECT ANSWER5 minutes (20 min if the ...

Coronary artery perfusion is dependent upon: A. diastolic pressure B. systolic pressure C. afterload D. systemic vascular resistance (SVR) Correct Answers A. diastolic pressure Diastolic pressure in the aortic root is higher than left ventricular end-diastolic pressure (LVEDP), the pressure exerted on the ventricular muscle at the end of diastole when the ventricle is full. This enables blood to flow from a higher pressure through open arteries to a lower pressure, a pressure gradient known...

define ischemia Correct Answer-Lack of blood supply - decreased perfusion define infarction Correct Answer-is complete tissue death due to a severe decrease in perfusion define preload Correct Answer-Volume of blood in the ventricles at the end of Diastole (end diastolic pressure) - the force or load acting to stretch the ventricle at the end of diastole - largely influenced by blood volume preload is increased by Correct Answer-administration of fluids; IV fluids or blood products ...

A patient's preload is decreased. How should the nurse interpret this information? -the stroke volume has increased -the ventricles have stretched more -the muscarinic receptors are activated -the end-diastolic volume has decreased - the end-diastolic volume has decreased -cardiac preload can be expressed as either end-diastolic volume or en-diastolic pressure; thus, decreased preload is decreased end-diastolic volume or end-diastolic pressure. Which statement is correct regarding the di...

Test Bank for Maternal Child Nursing Care 8th Edition by Perry, Lowdermilk, Hockenberry Chapter 07: Anatomy and Physiology of Pregnancy MULTIPLE CHOICE 1. A womans obstetric history indicates that she is pregnant for the fourth time and all of her children from previous pregnancies are living. One was born at 39 weeks of gestation, twins were born at 34 weeks of gestation, and another child was born at 35 weeks of gestation. ...

What are the organs susceptible to hypertensive end organ damage? Correct Answer-heart, kidney, brain, and eye Describe 2 factors determining the blood pressure Correct Answer-systemic blood volume(cardiac preload)-volume of the blood that the heart needs to pump every cardiac cycle (end diastolic volume) systemic vascular resistance(cardiac afterload)- pressure in the heart to overcome to eject blood (systolic ventricular pressure) What are the receptors for sympathetic and parasympathet...

What is afterload? Correct Answer-The pressure or resistance against which the ventricles must pump to eject blood What is preload (end-diastolic volume)? Correct Answer-Force exerted by the blood on the walls of the ventricles at the end of diastole What is a contraction? Correct Answer-Ability of cardiac cells to shorten, causing cardiac muscle contraction in response to an electrical stimulus What is venous return? Correct Answer-The amount of blood flowing into the right atrium each...

The nurse is caring for a patient admitted with hypovolemic shock. The nurse palpates thready brachial pulses but is unable to auscultate a blood pressure. What is the best nursing action? a. Assess the blood pressure by Doppler. b. Estimate the systolic pressure as 60 mm Hg. c. Obtain an electronic blood pressure monitor. d. Record the blood pressure as not assessable. A ~ Auscultated blood pressures in shock may be significantly inaccurate due to vasoconstriction. If blood pressure is not...

In center hemo must be done - Answer- 3x a week for about 4 hours Cons of in center HD - Answer- Most limitation on Diet, fluid than other modalities Requires the most medication Most symptoms Patients who run 4 hour tx - Answer- Are 30% less likely to die than pts who run shorter times Each 30 mins extra of tx increase life by 7% Patients are 50% more likely to die after - Answer- 2 day no treatment weekend, the last 12 hours of the 2 days the risk of death triples diastolic bl...