Nursing Elites

1. What should the nurse do before an echocardiogram for a client who has had a myocardial infarction?

• A. Ensuring no food or drink for 4 hours before the procedure
• B. Obtaining informed consent from the client
• C. Assessing for any history of iodine or shellfish allergies
• D. Informing the client about the painless nature and duration of the procedure

Correct answer: D

Rationale: The correct answer is to inform the client that the echocardiogram is a painless procedure that usually takes 30 to 60 minutes to complete. Echocardiography is a noninvasive, risk-free, and pain-free test that uses ultrasound to evaluate the heart's structure and motion. There is no need for special preparation before the procedure. Choices A, B, and C are incorrect because imposing nothing-by-mouth status, obtaining informed consent, and assessing for allergies to iodine or shellfish are not necessary steps before an echocardiogram.

2. A patient presents with severe chest pain radiating to the left arm. Which of the following diagnostic tests is the priority?

• A. Complete blood count (CBC)
• B. Electrocardiogram (ECG)
• C. Chest X-ray
• D. Serum electrolytes

Correct answer: B

Rationale: In a patient presenting with severe chest pain radiating to the left arm, the priority diagnostic test is an Electrocardiogram (ECG) to assess for myocardial infarction. An ECG can quickly identify changes indicative of ischemia or infarction, guiding prompt management. A Complete Blood Count (CBC) may provide some information but is not the primary test for evaluating chest pain related to myocardial infarction. A Chest X-ray can be useful in assessing lung pathologies or certain cardiac conditions; however, it does not provide immediate information on myocardial infarction, making it a secondary option in this scenario. Serum electrolytes may become important in later stages but do not offer immediate insights into myocardial infarction. Therefore, they are a lower priority compared to obtaining an ECG for timely diagnosis and intervention.

3. The nurse is preparing to administer the first dose of an antibiotic to a patient admitted for a urinary tract infection. Which action is most important prior to administering the antibiotic?

• A. Administering a small test dose to determine if hypersensitivity exists
• B. Having epinephrine available in case of a severe hypersensitivity reaction
• C. Monitoring baseline vital signs, including temperature and blood pressure
• D. Obtaining a specimen for culture and sensitivity

Correct answer: D

Rationale: The most crucial action before administering an antibiotic for a urinary tract infection is to obtain a specimen for culture and sensitivity. This ensures the accurate identification of the causative organism and helps determine the most effective antibiotic therapy. Administering a test dose to detect hypersensitivity is usually reserved for cases with a strong suspicion of allergy to a needed antibiotic. Keeping epinephrine available is important when there is a significant risk of a severe allergic reaction. Monitoring baseline vital signs is essential during antibiotic therapy but is not the top priority before administering the first dose.

4. The nurse is preparing to administer doses of hydrochlorothiazide (HydroDIURIL) and digoxin (Lanoxin) to a patient who has heart failure. The patient reports having blurred vision. The nurse notes a heart rate of 60 beats per minute and a blood pressure of 140/78 mm Hg. Which action will the nurse take?

• A. Administer the medications and request an order for serum electrolytes.
• B. Give both medications and evaluate serum blood glucose frequently.
• C. Hold the digoxin and notify the provider.
• D. Hold the hydrochlorothiazide and notify the provider.

Correct answer: C

Rationale: In this scenario, the patient is experiencing symptoms of digoxin toxicity, such as blurred vision and bradycardia. When thiazide diuretics like hydrochlorothiazide are taken with digoxin, the patient is at risk of digoxin toxicity due to the potential for thiazides to cause hypokalemia. Therefore, the correct action for the nurse to take is to hold the digoxin and notify the provider. Administering the medications without addressing the potential toxicity could worsen the patient's condition. Requesting serum electrolytes (Choice A) may be necessary but holding the digoxin takes priority. Evaluating serum blood glucose (Choice B) is not relevant to the current situation. Holding hydrochlorothiazide (Choice D) is not the best option as the primary concern is the digoxin toxicity that needs to be addressed promptly.

5. A healthcare professional is reviewing the results of renal function testing in a client with renal calculi. Which finding indicates to the healthcare professional that the client’s blood urea nitrogen (BUN) level is within the normal range?

• A. 2 mg/dL
• B. 18 mg/dL
• C. 25 mg/dL
• D. 35 mg/dL

Correct answer: B

Rationale: The normal BUN ranges from 5 to 20 mg/dL. A BUN level of 18 mg/dL falls within this normal range. Values of 25 and 35 mg/dL are elevated, suggesting potential renal insufficiency. Choice A (2 mg/dL) is abnormally low and not indicative of a normal BUN level.

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