RENIN ACTIVITY, PLASMA

PATIENT PREPARATION/ POSTURE: Patient should be upright/ ambulatory for at least 2 hours prior to sampling. If patient is not ambulatory and a supine collection was done, this MUST be clearly stated on the request form BLOOD COLLECTION: 3-5 mL EDTA plasma. TRANSPORTATION REQUIREMENTS Shipping Temperature: Frozen ANALYTE STABILITY Frozen: 3 months at -20°C HANDLING (EDTA PLASMA): Keep chilled e.g. keep samples on ice slurry immediately after collection. Centrifuge within 30 minutes to separate plasma. Transfer EDTA plasma to a plastic vial without disturbing blood cells. Label properly with 2 patient identifiers and sample type i.e. EDTA plasma. FREEZE. TRANSPORT AND STORAGE (EDTA PLASMA): Freezing: Freeze EDTA plasma immediately at -20°C or lower. Record relevant patient information on the TRF i.e. posture (MANDATORY i.e. supine vs upright), medications.