ALDOSTERONE, URINE 24HR
Collect 24 hour urine. Urine must be refrigerated during collection. Add 1.0g boric acid/100mL urine mix well and send 4.5mL aliquot boric acid preserved urine frozen in a screw-capped plastic urine container. Record total volume on test requisition and specimen label.
Refrigerated: 1 week; Frozen: 1 month
3-7 days Performed Tues, Thurs, Sat