Nursing Elites

1. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which laboratory value should be monitored closely?

• A. Arterial blood gas (ABG) values
• B. Serum potassium level
• C. Serum sodium level
• D. Serum magnesium level

Correct answer: B

Rationale: The correct answer is B: Serum potassium level. In COPD, especially when the client is receiving diuretics or corticosteroids, monitoring serum potassium levels is crucial. These medications can lead to potassium loss, potentially causing hypokalemia. Arterial blood gas (choice A) values are important in assessing respiratory status but are not the primary concern related to medication side effects. Serum sodium (choice C) and magnesium (choice D) levels are also important, but in the context of COPD exacerbation and medication effects, potassium monitoring takes precedence.

2. A client with gestational diabetes, at 39 weeks of gestation, is in the second stage of labor. After delivering the fetal head, the nurse recognizes that shoulder dystocia is occurring. What intervention should the nurse implement first?

• A. Prepare the client for an emergency cesarean birth
• B. Encourage the client to move to a hands-and-knees position
• C. Assist the client to sharply flex her thighs up against the abdomen
• D. Lower the head of the bed and apply suprapubic pressure

Correct answer: C

Rationale: In cases of shoulder dystocia, the priority intervention is to assist the client in sharply flexing her thighs up against the abdomen (McRoberts maneuver). This action helps to widen the pelvic outlet. Encouraging the client to move to a hands-and-knees position may also be beneficial in some cases but is not the first-line intervention. Preparing for an emergency cesarean birth and applying suprapubic pressure are not appropriate initial interventions for shoulder dystocia.

3. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?

• A. Initiation of the impulses from a location outside the SA node
• B. Inability of the SA node to initiate an impulse at the normal rate
• C. Increased conduction time from the SA node to the AV junction
• D. Interference with the conduction through one or both ventricles

Correct answer: C

Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.

4. During the initial newborn assessment, the nurse finds that a newborn's heart rate is irregular. Which intervention should the nurse implement?

• A. Notify the pediatrician immediately.
• B. Teach the parents about congenital heart defects.
• C. Document the finding in the infant's record.
• D. Apply oxygen via nasal cannula at 3 L/min.

Correct answer: C

Rationale: The correct intervention when a nurse finds an irregular heart rate in a newborn is to document the finding in the infant's record. An irregular heart rate is a common occurrence in newborns and does not necessarily require immediate medical intervention. Notifying the pediatrician immediately is unnecessary unless there are other concerning symptoms. Teaching the parents about congenital heart defects is not the priority in this situation. Applying oxygen via nasal cannula at 3 L/min is not indicated for an irregular heart rate without further assessment or medical indication.

5. A client with rheumatoid arthritis is prescribed methotrexate. Which laboratory value should the nurse monitor closely?

• A. White blood cell count of 10,000/mm³
• B. Hemoglobin of 12 g/dL
• C. Liver function tests
• D. Platelet count of 150,000/mm³

Correct answer: C

Rationale: The correct answer is C: Liver function tests. Methotrexate can cause hepatotoxicity, making it essential to closely monitor liver function tests in clients receiving this medication. Monitoring white blood cell count, hemoglobin, or platelet count is not specifically required for methotrexate therapy and would not provide relevant information regarding potential adverse effects of the medication.

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