Correct Answer: D

Rationale: An elevated ammonia level of 80 mcg/dL indicates hepatic encephalopathy, a serious complication of liver cirrhosis that requires immediate intervention. Ammonia is a neurotoxin that accumulates in the blood due to impaired liver function, leading to cognitive impairment and altered mental status. Monitoring and lowering ammonia levels are crucial in managing hepatic encephalopathy to prevent further neurological deterioration. Prothrombin time, bilirubin, and albumin levels are important parameters in assessing liver function and overall health status in clients with liver cirrhosis, but an elevated ammonia level poses an immediate threat to neurological function and warrants prompt attention.

Correct Answer: A

Rationale: Muscle weakness and cramps are characteristic signs of hypokalemia, a condition marked by low levels of potassium in the blood. Potassium is essential for proper muscle function, and its deficiency can lead to muscle weakness and cramps. In the context of a client with a nasogastric tube to low intermittent suction, the loss of potassium through suctioning can contribute to the development of hypokalemia. Nausea and vomiting (choice B) are more commonly associated with gastrointestinal issues rather than hypokalemia. Constipation (choice C) is not a typical finding of hypokalemia; instead, it can be a sign of other gastrointestinal problems. Increased blood pressure (choice D) is not a direct manifestation of hypokalemia; in fact, low potassium levels are more commonly associated with decreased blood pressure.

Correct Answer: D

Rationale: The correct answer is D: 4-6 years of age. According to current CDC guidelines, a child receiving the measles, mumps, rubella (MMR) vaccine at 12 months of age should plan to receive the MMR booster between 4-6 years of age. Choices A, B, and C are incorrect as they do not align with the CDC's recommended age range for the MMR vaccine booster. It is crucial for healthcare providers to stay updated with current guidelines to ensure the timely administration of vaccines for optimal protection.

Correct Answer: B

Rationale: Shortness of breath is a critical sign that can indicate heart failure or pulmonary edema, conditions that require immediate intervention in a client with a suspected myocardial infarction. Chest pain radiating to the left arm is a classic symptom of a myocardial infarction but may not necessitate immediate intervention compared to severe shortness of breath. Nausea and vomiting can be present in myocardial infarction but are not as urgent as shortness of breath. Diaphoresis, or sweating, is a common symptom of a myocardial infarction but may not be as immediately concerning as significant shortness of breath.

Correct Answer: C

Rationale: The correct instruction for the nurse to include in the client's teaching plan is to avoid taking aspirin with alcohol. Combining aspirin with alcohol can increase the risk of gastrointestinal bleeding and other complications. Taking aspirin with food helps reduce stomach upset, but it is not the most crucial instruction in this scenario. While taking aspirin at the same time every day can help with consistency, it is not as critical as avoiding alcohol. Discontinuing aspirin if experiencing ringing in the ears is important to address potential side effects, but it is not directly related to preventing complications when combining with alcohol.