1. Cardiovascular System By: Jing

2. Cardiovascular System Major components of the cardiovascular (CV) system Heart Approximately size of closed fist Pumps ~5 liters of blood throughout bodyBlood vessels Highway system Facilitates transport of major products to and from essential organs 3. Cardiovascular System Major responsibilities Transport of products essential to life BloodOxygenated Deoxygenated NutrientsHormonesTransport of wastes for elimination 4. Assessment of CV function Three tests for assessment of health / function of CV system Doppler ultrasoundStress testLigation and stripping 5. Doppler Ultrasound 6. What is doppler ultrasound? Non-invasive testHigh frequency sound waves Echo / reflect off surrounding tissues Waves recorded as an image Used in the assessment of: Blood flow Stiffness of tissue Presence of specific molecules Overall anatomy 7. Doppler ultrasound Diagnostics Applications Blood clotsRegional blood flowHeart / leg valve function Arterial / venous occlusion Structural abnormalities Therapeutic Applications Destruction of gall / kidney stonesHeat / destroy cancerous tissueGuidance of interventional procedures 8. Stress Test 9. What is stress testing? Purpose Assess hearts ability to respond to external stress Performed in controlled environment by healthcare professionalsUsed to diagnose ischemic heart disease 10. What is stress testing? Procedure Patient monitoring Blood pressure EKG Physical symptomsCardiac stress induction MedicationExercise (treadmill) 11. Question about stress test? 12. Question about stress test? How cardiac stress test perform? Answer: The best way to stimulate the heart and get the anchor of views to see how the heart is responding is by different level of exercising. 13. Question about stress test? Can cardiac stress perform on a patient who can not perform the test physically? Answer: Yes. There are medication used as substitute for exercise. This test is called chemical stress test (either adenosine or dobutamine stress test) to stimulate the activities of the heart to evaluate the function. 14. Ligation and stripping? 15. When blood accumulate in vein Physical appearance: SwollenTwistedenlargedred or blue in color usually appeared in the legs, but can occur in other parts of the body. 16. What is ligation and stripping? Minor surgery Causes requires anesthesia veins to become filled with bloodRemove a damaged vein two small incisions clamp the vein to stop the blood flow (ligation) A wire is then past down through the vein to the other side of the incision.(striping) 17. Ligation and Stripping 18. Reference "What Is Stress Testing?" - NHLBI, NIH. N.p., n.d. Web. 11 Feb. 2014. ."Vein Ligation and Stripping." WebMD. WebMD, n.d. Web. 11 Feb. 2014. < http://www.webmd.com/skin-problems-and-treatments/vein-ligation-and-st >. "Varicose Vein Stripping: MedlinePlus Medical Encyclopedia." U.S National Library of Medicine. U.S. National Library of Medicine, n.d. Web. 11 Feb. 2014. < http://www.nlm.nih.gov/medlineplus/ency/article/002952.htm>. "Doppler Ultrasound." WebMD. WebMD, 03 Jan. 2000. Web. 11 Feb. 2014. . "Cardiovascular System." InnerBody. N.p., n.d. Web. 09 Feb. 2014. .