15.Which is the main purpose of the digestive system? A. to add oxygen to food particles
B. to fill the stomach with food particles
C. to turn food into nutrients the body needs
D. to transfer food from one organ to another organ

A92-year-old man with a 45-year history of chronic obstructive pulmonary disease is intubated in the icu because of a bout of viral pneumonia that fails to improve after 72 hours of antibiotics. although the inspired fraction of oxygen is 100%, the patient's po2 remains at 57 mmhg. positive-end expiratory pressure (peep) is added to allow the inspired fraction of oxygen. twelve hours after the introduction of peep the patient suddenly become hypotensive. at the same time, his oxygen saturation drops from 92% to 61%. on physical examination, his bp is 80/50 mmhg and his pulse is 124/min. he has distended neck veins and distant heart sounds. which of the following would also most likely be seen on this patient's physical examination? - absence of breath sounds in the right hemithorax- high amplitude carotid artery upstroke- a pleural friction rub- pulsus alternans- splenomegaly

A12 pound cat is prescribed amoxicillin at 5mg/kg twice a day for seven days the oral medication has a concentration of 50mg/ml how many mls will the cat need per day

Which factors would indicate that a patient would be unable to use autonomy to make a decision? a rude personality and an unwillingness to follow the doctor’s orders a family history of mental disorders and a criminal record a criminal record and trouble following simple directions a mental condition and an age below the legal age of consent