Laboratory Studies
- Complete blood cell (CBC) count: Results may show anemia, leucopenia, and thrombocytopenia in patients with cirrhosis. Anemia may be secondary to bleeding, nutritional deficiencies, or bone marrow suppression secondary to alcoholism. Many patients with portal hypertension have some degree of hypersplenism. The hematocrit value may be low in patients with upper abdominal bleeding.
- Type and cross-match blood and order 6 units of packed red blood cells.
- Prothrombin time (PT): Because the coagulation factors involved in this test are synthesized by the liver, impairment of the liver function may result in a prolonged prothrombin time.
- Liver function tests: A mild elevation of the plasma activity of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) may occur in cirrhosis, although activity may be normal.
- Blood urea, creatinine, and electrolytes: Blood urea and creatinine levels may be elevated in patients with esophageal bleeding. Drug treatment, cirrhosis, ascites, and blood loss may contribute to changes in the serum electrolytes of these patients.
- Arterial blood gas (ABG) and pH measurements
- Hepatic serology helps in the assessment of the cause of cirrhosis.
Imaging Studies
- Ultrasonography of the upper abdomen may be indicated in those with esophageal varices, especially if biliary obstruction or liver cancer is suspected.
Other Tests
- Rectal examination: Obtain a stool sample for visual inspection. A black, soft, tarry stool on the gloved examining finger suggests upper GI bleeding.
Procedures
- Endoscopy is required at an early stage to formulate the management plan for those with esophageal varices. If active variceal bleeding or an adherent clot is observed, variceal hemorrhage can be diagnosed confidently. The presence of variceal red color signs (eg, cherry red spots, red whale markings, blue varices) indicates an increased risk of further bleeding.
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