Nursing Elites

1. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?

• A. Serum creatine kinase (CK)
• B. Serum troponin
• C. Serum myoglobin
• D. C-reactive protein (CRP)

Correct answer: B

Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.

2. An adult client comes to the clinic and reports his concern over a lump that 'just popped up on my neck about a week ago.' In performing an examination of the lump, the nurse palpates a large, non-tender, hardened left subclavian lymph node. There is no overlying tissue inflammation. What do these findings suggest?

• A. Malignancy
• B. Infection
• C. Benign cyst
• D. Lymphadenitis

Correct answer: A

Rationale: The findings of a large, non-tender, hardened lymph node, especially in the absence of overlying tissue inflammation, are indicative of malignancy. These characteristics raise suspicion for cancer, prompting the need for further investigation. Choice B, Infection, is incorrect because infection would typically present as a tender and possibly swollen lymph node. Choice C, Benign cyst, is incorrect as cysts are usually soft and movable. Choice D, Lymphadenitis, is incorrect as lymphadenitis usually presents with tender and enlarged lymph nodes in response to an infection.

3. 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.

4. An adult female client is admitted to the psychiatric unit with a diagnosis of major depressive disorder. After starting medication therapy, the nurse notices the client has more energy, is giving away her belongings, and has an elevated mood. Which intervention is best for the nurse to implement?

• A. Support the client by telling her what wonderful progress she is making.
• B. Ask the client if she has had any recent thoughts of harming herself.
• C. Reassure the client that the antidepressant drugs are apparently effective.
• D. Tell the client to keep her belongings because she will need them at discharge.

Correct answer: B

Rationale: When a client with major depressive disorder shows signs of increased energy, giving away belongings, and an elevated mood, it could indicate a shift towards suicidal behavior. Therefore, the best intervention for the nurse is to ask the client if she has had any recent thoughts of harming herself. This is crucial to assess the client's risk for suicide and provide necessary interventions. Choices A, C, and D are incorrect because they do not address the potential risk of harm to the client and do not prioritize the immediate assessment required in this situation.

5. A male client is admitted with a bowel obstruction and intractable vomiting for the last several hours despite the use of antiemetics. Which intervention should the nurse implement first?

• A. Infuse 0.9% sodium chloride 500 ml bolus
• B. Administer an antiemetic intravenously
• C. Insert a nasogastric tube
• D. Prepare the client for surgery

Correct answer: A

Rationale: The correct first intervention for a male client with a bowel obstruction and intractable vomiting is to infuse 0.9% sodium chloride 500 ml bolus. This intervention is crucial to address the risk of hypovolemia due to excessive vomiting. Administering intravenous fluids will help prevent dehydration, maintain blood pressure, and stabilize the client's condition. Choice B, administering an antiemetic intravenously, may not be effective as the client has already been unresponsive to antiemetics orally. Choice C, inserting a nasogastric tube, may be necessary but is not the priority in this situation. Choice D, preparing the client for surgery, should only be considered after stabilizing the client's fluid and electrolyte balance.

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