Aclient is diagnosed with erectile dysfunction. he asks what effect sildenafil (viagra) has because he is taking nitroglycerin for chest pain. what is the best explanation for why nitrates are contraindicated with sildenafil (viagra)?

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

(05.04 lc) what is a health problem typically experienced by children and teens who smoke regularly? mouth cancer poor lung growth or function seizures stomach pain or digestion issues

Which statement best describes the role of the artificial heart? the artificial heart is a good replacement option for individuals who do not want a human heart. the artificial heart has been a great option because it can keep patients alive for a very long time. the artificial heart is not a good option because of the high possibility for rejection. the artificial heart has limited usefulness but can prolong life or be a tool to use while waiting for a transplant.