Melena, the passage of black, tarry stools, suggests bleeding from which source?

Correct Answer: B

Rationale: Melena indicates bleeding from the upper GI tract. The black, tarry appearance of the stool results from the partial digestion of blood as it passes through the intestines, typically originating from sources like the stomach or duodenum. Lower GI bleeding usually presents as bright red blood in the stool, originating from sources like the colon or rectum. Choices A, C, and D are incorrect because melena specifically points to upper GI bleeding rather than issues in the perianal/rectal area, lower GI tract, or hemorrhoids/anal fissures.

Correct Answer: B

Rationale: The correct answer is B: Anorexia and malaise. The prodromal phase of acute viral hepatitis is characterized by nonspecific symptoms such as anorexia (loss of appetite) and malaise (general feeling of discomfort). These symptoms typically precede the more specific signs of jaundice, dark urine, and pale stools that manifest in the icteric phase. Choices A, C, and D are incorrect because bruising and lethargy, fatigability and jaundice, and dark urine and pale stools are typically seen in later stages of acute viral hepatitis, not in the prodromal phase.

Correct Answer: B

Rationale: The correct answer is B, the Hepatitis B vaccine. This vaccine is recommended for all newborns to prevent Hepatitis B infection, which can lead to chronic liver disease and liver cancer. The Hepatitis B vaccine is a crucial part of the routine immunization schedule for infants. Choices A, C, and D are incorrect because the recommended vaccine for newborns is specifically Hepatitis B, not Hepatitis A, Hepatitis C, or a combination of Hepatitis A, B, and C vaccines.

Correct Answer: B

Rationale: Teaching infection control measures is crucial as Hepatitis A is highly contagious, especially in household settings. Proper hand hygiene and avoiding sharing personal items can prevent the spread of the virus within the family. Option A is incorrect because bed rest is not typically required for hepatitis A. Option C is incorrect as the child can return to school once feeling well and no longer contagious, not necessarily after a specific duration. Option D is incorrect because hepatitis A can be transmitted through contaminated food, water, or close personal contact.

Correct Answer: B

Rationale: Liver transplantation offers the best chance of survival for children with cirrhosis, especially in advanced stages where the liver can no longer function effectively. Cirrhosis is a late stage of scarring of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. While nutritional support, blood component therapy, and corticosteroids may be part of the treatment plan to manage symptoms and complications, they do not address the underlying cause of cirrhosis or provide a cure like liver transplantation does.