Marissa's target heart rate zone is 140-178. during a tennis match, she checks her wrist monitor, which indicates that her heart rate is currently 130. which of the following will her get the most productive workout, based on the information she has gathered?
a. moving more quickly and serving the ball with greater intensity
b. moving more slowly and serving the ball with less intensity
c. deliberately trading points to change the duration of the match
d. deliberately shortening the duration of the match to play less

Which of the following statemens is not true about the consequences of alcohol?

Ingredients used in tobacco products been banned?

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