Correct Answer: C

Rationale: Thrombin is produced by the liver and is necessary for normal clotting. When a client with liver dysfunction has low serum levels of thrombin, they are at risk of bleeding due to impaired clotting mechanisms. Dehydration (choice A) is not directly related to low thrombin levels. Malnutrition (choice B) may impact overall health but is not the most immediate concern associated with low thrombin levels. Infection (choice D) is not directly related to the clotting function affected by low thrombin levels.

Correct Answer: C

Rationale: Mucosal barrier fortifiers stimulate mucus production, which helps protect the lining of the stomach and manage peptic ulcer disease.

Correct Answer: C

Rationale: Monitoring the client for nausea, vomiting, and abdominal distention is crucial for ensuring proper functioning of the nasogastric tube and drainage system.

Correct Answer: C

Rationale: Esophageal reflux is a common symptom of a hiatal hernia because the hernia can cause stomach acid to move back up into the esophagus.

Correct Answer: B

Rationale: Clients with chronic gastritis are at risk for Vitamin B12 deficiency due to impaired absorption.