The Client Has a Routine Urinalysis Done, and the Results

The client has a routine urinalysis done, and the results show protein in the urine. What does the nurse correctly conclude about this result?

A) The client is in acute renal failure, and needs to be hospitalized.
B) The client probably has kidney damage; protein should not be present in the urine.
C) There could be a mistake with the results; the client should have another test done.
D) This results probably mean nothing, if the amount of protein is very small.