Page 1485 - Saunders Comprehensive Review For NCLEX-RN
P. 1485

cleansing preparations or enemas is at risk for fluid
                                                                and electrolyte imbalances.
                                F. Laparoscopy is performed with a fiberoptic laparoscope that
                                   allows direct visualization of organs and structures within the
                                   abdomen; biopsies may be obtained.
                                        G. Endoscopic retrograde cholangiopancreatography (ERCP)


                                             1. Description
                                                             a. Examination of the hepatobiliary
                                                                system is performed via a flexible
                                                                endoscope inserted into the esophagus
                                                                to the descending duodenum; multiple
                                                                positions are required during the
                                                                procedure to pass the endoscope.
                                                             b. If medication is administered before the
                                                                procedure, the client is monitored
                                                                closely for signs of respiratory and
                                                                central nervous system depression,
                                                                hypotension, oversedation, and
                                                                vomiting.
                                             2. Preprocedure
                                                             a. Client is NPO for 6 to 8 hours.
                                                             b. Inquire about previous exposure to
                                                                contrast media and any sensitivities or
                                                                allergies.
                                                             c. Moderate sedation is administered.
                                             3. Postprocedure
                                                             a. Monitor vital signs.
                                                                    b. Monitor for the return of the gag


                                                                reflex.
                                                                    c. Monitor for signs of perforation


                                                                or peritonitis (see Box 48-3).
                                H. Magnetic resonance cholangiopancreatography (MRCP)
                                             1. Description: Uses magnetic resonance to visualize the
                                                biliary and pancreatic ducts in a noninvasive way.
                                             2. Preprocedure and postprocedure: see ERCP
                                I. Endoscopic ultrasonography
                                             1. Description: Provides images of the GI wall and
                                                digestive organs.
                                             2. Preprocedure and postprocedure: Care is similar to
                                                that implemented for endoscopy.



                                                       Following endoscopic procedures, monitor for the return of the

                                                gag reflex before giving the client any oral substance. If the gag reflex



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