Asmall divice, battery-powered device that simulates the heart to contract is called.
a. stent
b. artificial pacemaker or
c. angioplasty

A46-year-old man with a history of hypertension and hypercholesterolemia visits the physician for a routine followup. the patient's job involves a lot of travelling, and he admits to occasionally forgetting to take his medications with him when he travels. he complains of several episodes of chest pain in the past few months. the pain is sharp in nature, mainly over his lower chest and epigastrium, and tends to come on when walking. he believes these episodes are due to indigestion and has been taking antacids. there is a family history of heart disease, and his father died of a heart attack at age 48. on physical examination, his blood pressure is 150/80 mmhg and heart rate is 86/min. his lungs are clear to auscultation. cardiac auscultation reveals normal rate and rhythm, without rubs, gallops, or murmurs. there is no pedal oedema. he is sent for an exercise stress test. five minutes into the test, he develops st depression of 3mm in leads v1-v5. the st segment depression is greater than 0.12 seconds in duration and the stress test is stopped. which of the following is the most appropriate next step in management? - coronary angiography- holter monitor- no further tests are required- repeat stress test with thallium- upper gastrointestinal endoscopy

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?

Match the vocabulary terms to the correct definition. 1. branch of u. s. department of human services that works to improve the emotional and mental lives of families and communities; may include social workers, community managers and planners, therapists and corrective treatment specialists, and educators and child care workers quality-of-life indicators 2. infrastructure used to reduce health-care related expenses and increase the affordability of health care and insurance; increases the need for coordination among health care providers managed health-care system 3. federal healthcare insurance that provides medical, psychological, therapy, or social work services to the disadvantaged (medicaid) or the elderly (medicare) medicaid or medicare 4. measurements of the well-being of an individual, community, or larger population; includes physical, mental, emotional, and social health as well as other factors such as safety and opportunity for intellectual growth and challenges family and community services