Why do most positions in health sciences call for educational requirements beyond high school?
A. Because patients do not trust anyone with their health care who
does not have a higher degree.
B. Because all health sciences careers use information that can't be
taught until the doctoral level.
C. Because there are not many positions in health sciences, so the
job field is very competitive.
D. Because the health care field requires specialized knowledge in
order to care for patients.

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis