Jackie's Ankles Are Very Swollen at Night After Work

Multiple Choice

Jackie's ankles are very swollen at night after work.When she went to the doctor about the problem,the doctor requested a urine specimen.Why?

A) Edema could be a sign of kidney failure.A urine sample might contain protein or urea.
B) Jackie is probably drinking too much water and the doctor can see this because the urine will be very dilute.
C) Jackie probably stands all day long and this prevents the urinary system from working correctly.
D) Edema is a sign of kidney stones and the doctor is looking for small stones in the urine.
E) Edema could be a sign of an inactive bladder.The doctor wants to see if Jackie is capable of urinating.