Page 1501 - Saunders Comprehensive Review For NCLEX-RN
P. 1501

elastic rubber band.
                                             2. Sloughing, followed by superficial ulceration, occurs
                                                in the area of ligation within 3 to 7 days.
                                F. Shunting procedures
                                             1. Description: Shunt blood away from the esophageal
                                                varices
                                             2. Portacaval shunting involves anastomosis of the portal
                                                vein to the inferior vena cava, diverting blood from
                                                the portal system to the systemic circulation (Fig. 48-
                                                7).
                                             3. Distal splenorenal shunt (see Fig. 48-7)
                                                             a. The shunt involves anastomosis of the
                                                                splenic vein to the left renal vein.
                                                             b. The spleen conducts blood from the
                                                                high-pressure varices to the low-
                                                                pressure renal vein.
                                             4. Mesocaval shunting involves a side anastomosis of the
                                                superior mesenteric vein to the proximal end of the
                                                inferior vena cava.
                                             5. Transjugular intrahepatic portosystemic shunt (TIPS)
                                                             a. This procedure uses the normal
                                                                vascular anatomy of the liver to create
                                                                a shunt with the use of a metallic stent.
                                                             b. The shunt is between the portal and
                                                                systemic venous system in the liver
                                                                and is aimed at relieving portal
                                                                hypertension.
                    XV. Hepatitis
                                A. Description
                                             1. Inflammation of the liver caused by a virus, bacteria,
                                                or exposure to medications or hepatotoxins
                                             2. The goals of treatment include resting the inflamed
                                                liver to reduce metabolic demands and increasing the
                                                blood supply, thus promoting cellular regeneration
                                                and preventing complications.
                                B. Types of hepatitis include hepatitis A virus (HAV), hepatitis B
                                   virus (HBV), hepatitis C virus (HCV), hepatitis D virus (HDV),
                                   and hepatitis E virus (HEV).

                                        C. Assessment and stages of viral hepatitis (Box 48-9)

                    XVI. Hepatitis A
                                A. Description: Formerly known as infectious hepatitis
                                B. Individuals at increased risk
                                             1. Crowded conditions (e.g., day care, nursing home)
                                             2. Exposure to poor sanitation

                                        C. Transmission





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