The nurse is obtaining a 24-hour urine specimen collection from the patient. Which actions should the nurse take? (Select all that apply.)

A) Keeping the urine collection container on ice when indicated
B) Withholding all patient medications for the day
C) Irrigating the sample as needed with sterile solution
D) Testing the urine sample with a reagent strip by dipping it in the urine
E) Asking the patient to void and discarding that urine to start the collection