Nursing Elites

1. The nurse discovers that an elderly client with no history of cardiac or renal disease has an elevated serum magnesium level. To further investigate the cause of this electrolyte imbalance, what information is most important for the nurse to obtain from the client's medical history?

• A. Frequency of laxative use for chronic constipation
• B. Dietary intake of magnesium-rich foods
• C. Use of magnesium-containing supplements
• D. History of alcohol use

Correct answer: A

Rationale: The correct answer is A. Frequent use of magnesium-containing laxatives can lead to hypermagnesemia, particularly in elderly clients. Option B, dietary intake of magnesium-rich foods, may contribute to elevated serum magnesium levels but is less likely the cause in this scenario. Option C, the use of magnesium-containing supplements, can also contribute to hypermagnesemia but is not as common in elderly clients without a history of using such supplements. Option D, history of alcohol use, is less relevant to the development of elevated serum magnesium levels compared to laxative use for chronic constipation.

2. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which laboratory value is most concerning?

• A. Serum glucose of 300 mg/dL
• B. Blood pressure of 140/90 mmHg
• C. Serum osmolarity of 320 mOsm/kg
• D. Serum pH of 7.30

Correct answer: C

Rationale: In a client with hyperglycemic hyperosmolar syndrome (HHS), a serum osmolarity of 320 mOsm/kg is the most concerning laboratory value. This high osmolarity indicates severe dehydration, which can lead to serious complications. Elevated serum glucose levels (choice A) are expected in HHS but do not directly reflect dehydration. Blood pressure (choice B) and serum pH (choice D) are important parameters to monitor but are not the most concerning values in HHS compared to serum osmolarity.

3. A client with cirrhosis is admitted with ascites and jaundice. Which assessment finding is most concerning?

• A. Peripheral edema
• B. Confusion and altered mental status
• C. Increased abdominal girth
• D. Yellowing of the skin

Correct answer: B

Rationale: Confusion and altered mental status are concerning signs of hepatic encephalopathy in a client with cirrhosis. Hepatic encephalopathy is a serious complication of liver disease that requires immediate intervention. Peripheral edema may be present due to fluid accumulation, increased abdominal girth can indicate ascites which is common in cirrhosis, and yellowing of the skin is a typical manifestation of jaundice in liver dysfunction, all of which are important but not as immediately concerning as signs of hepatic encephalopathy.

4. Following an open reduction of the tibia, the nurse notes bleeding on the client's cast. Which action should the nurse implement?

• A. Outline the area with ink and check it every 15 minutes to see if the area has increased
• B. Notify the healthcare provider immediately
• C. Apply a new cast to stop the bleeding
• D. Elevate the limb to reduce blood flow

Correct answer: A

Rationale: After an open reduction of the tibia, bleeding on the cast can be a concern. Outlining the area with ink and monitoring it every 15 minutes is the appropriate action to assess if the bleeding is worsening, indicating the need for further intervention. This action allows for close observation without disturbing the cast. Choice B is incorrect because while notifying the healthcare provider is important, immediate action is not always necessary if the bleeding is not severe. Choice C is incorrect because applying a new cast is not the standard intervention for bleeding on a cast. Choice D is incorrect because elevating the limb may not address the underlying cause of bleeding and may not be the most appropriate action at this time.

5. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value is most concerning?

• A. Serum ammonia level of 100 mcg/dl
• B. Bilirubin level of 3.0 mg/dl
• C. Prothrombin time of 18 seconds
• D. Serum sodium level of 135 mEq/L

Correct answer: A

Rationale: A serum ammonia level of 100 mcg/dl is most concerning in a client with hepatic encephalopathy. Elevated serum ammonia levels indicate significant liver dysfunction and an increased risk of worsening encephalopathy. Bilirubin level and prothrombin time are important in assessing liver function, but in the context of hepatic encephalopathy, elevated ammonia levels take precedence as they directly contribute to neurological symptoms. Serum sodium level, though important, is not the primary concern when managing hepatic encephalopathy.

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