Which of the following is a common myth associated with fitness? a. working out in the morning is more effective than working out at night. b. physically active people can continue to gain muscle and lower body fat even as they age. c. you should have a physical exam by a doctor before beginning any exercise program. d. you should drink water while you exercise to prevent dehydration.

A74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease comes to the ed complaining of 48 hours of temperature to 38.6 c and worsening shortness of breath. she has a chronic productive cough, which has become more copious. on physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. a gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. which of the following is the most likely organism causing the symptoms? - escherichia coli- haemophilus influenzae- klebsiella pneumoniae- mycobacterium tuberculosis- mycoplasma pneumoniae