Page 111 - AACN Essentials of Critical-Care Nursing Pocket Handbook, Second Edition
P. 111

98
                    Call physician to pull back, rotate,   or reposition catheter while observing pressure waveform. Aspirate clot with syringe and flush  with saline ( 2-4 mL). Consider   line removal. Flush stopcock and transducer; if no   transducer. Check syste

                 Treatment      improvement, change stopcock and   transducer and flush out air bubbles.












                    Usually cannot be avoided.  to catheter.  Use stiff, short tubing.
                 Prevention  Use continuous infusion under  pressure. Briefly “fast flush”  after blood withdrawal (2-4 mL). Carefully flush catheter after blood  withdrawal and reestablish IV  drip. Use continuous flush device. Carefully flush transducer and tubing  w

              Inaccurate Arterial Pressure Measurements








                    Catheter tip against vessel wall  Clot in stopcock or transducer  tubing  Compliant tubing

                 Cause   Partial occlusion of catheter tip by clot  Air bubbles in transducer or connector








                    Damped pressure tracing



                 Problem
              4.8
   106   107   108   109   110   111   112   113   114   115   116