Correct Answer: C

Rationale: The correct answer is C: Decreased serum ammonia. Lactulose is prescribed to decrease serum ammonia levels in clients with cirrhosis and hepatic encephalopathy. By reducing serum ammonia, lactulose helps improve the mental status of these clients. Therefore, monitoring for decreased serum ammonia is crucial to assess the effectiveness of lactulose therapy. Choice A (Improved mental status) is indirectly related as it is the desired outcome of decreasing ammonia levels. Choices B (Increased urine output) and D (Decreased bilirubin levels) are not directly associated with the therapeutic effects of lactulose in cirrhosis and hepatic encephalopathy.

Correct Answer: C

Rationale: The correct answer is C: Provide the client with a stool softener. Thrombocytopenia is a condition characterized by a low platelet count, which can lead to an increased risk of bleeding. Providing the client with a stool softener is essential to prevent straining during bowel movements, which could result in bleeding for clients with thrombocytopenia. Encouraging the client to floss daily (choice A) is unrelated to the management of thrombocytopenia. Removing fresh flowers (choice B) is more relevant for clients with a compromised immune system. Avoiding serving raw vegetables (choice D) is important for clients with compromised immune systems to prevent foodborne illnesses, but it is not directly related to thrombocytopenia.

Correct Answer: C

Rationale: The correct answer is to instruct the client to rotate the patch site each time they apply it. This practice helps prevent skin irritation and ensures the effectiveness of nitroglycerin transdermal patches. Applying the patch to the same site each time can lead to skin irritation and decreased patch efficacy. Choices A, B, and D are incorrect because applying the patch to the upper arm, removing it before showering, and placing it on the lower abdomen do not promote proper rotation of patch sites, which is essential for optimal outcomes.

Correct Answer: B

Rationale: The correct statement is B: 'Dehydration can increase the risk of preterm labor.' Dehydration can lead to increased uterine irritability, potentially causing preterm contractions and labor. Choice A is incorrect as dehydration is not treated with calcium supplements but rather with fluids. Choice C is incorrect as dehydration is not caused by decreased hemoglobin and hematocrit levels but rather by a lack of fluids. Choice D is incorrect as dehydration does not directly cause gastroesophageal reflux.

Correct Answer: C

Rationale: Furosemide can cause low potassium levels, and clients should be advised to rise slowly to prevent dizziness.