Explain why doctors recommend getting flu shots each year.
Influenza comes in different strains that are constantly changing. A shot from one year will not protect you from the virus the next year. If you have the flu one year, it will not prevent you from getting a different type of flu the same year or a different year.
Describe an example situation in which a doctor would order an MRI of a patient's head.
Head MRIs can be used to identify tumors, brain damage, blood flow, multiple sclerosis, and other conditions.
Describe the symptoms of and diagnosis for strep throat.
Strep throat presents with symptoms of a sore throat, fever, swollen tonsils or lymph nodes, and often white or yellow spots in the throat. Doctors confirm a diagnosis with a throat culture.
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