Nursing Elites

1. A nurse is caring for a client who is receiving continuous cardiac monitoring. The client's heart rate is 69/min, and the PR interval is 0.24 seconds. What cardiac rhythm should the nurse interpret this finding as?

• A. First-degree AV block.
• B. Premature ventricular contraction.
• C. Sinus bradycardia.
• D. Atrial fibrillation.

Correct answer: A

Rationale: The correct answer is A: First-degree AV block. A PR interval of 0.24 seconds indicates a prolonged PR interval, which is characteristic of first-degree AV block. This rhythm is considered benign and often does not require treatment. Choice B, premature ventricular contraction, is characterized by early, abnormal ventricular contractions and would not be indicated by the findings provided. Choice C, sinus bradycardia, would present with a normal PR interval but a heart rate less than 60 beats per minute. Choice D, atrial fibrillation, is characterized by an irregularly irregular rhythm with no identifiable P waves, which does not align with the findings of a prolonged PR interval in this scenario.

2. Which lab value is critical for monitoring warfarin therapy?

• A. Monitor INR
• B. Monitor platelet count
• C. Monitor sodium levels
• D. Monitor calcium levels

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

3. A nurse is assessing a client who is 2 hours postoperative following a gastrectomy. Which of the following findings should the nurse report to the provider?

• A. Heart rate of 94/min
• B. Oxygen saturation of 88%
• C. Respiratory rate of 18/min
• D. Temperature of 37.6°C (99.7°F)

Correct answer: B

Rationale: An oxygen saturation of 88% indicates hypoxemia, which is a serious condition post-gastrectomy. Hypoxemia can lead to inadequate oxygen delivery to tissues, potentially causing complications like organ dysfunction or failure. This finding requires immediate attention to prevent further deterioration. The heart rate, respiratory rate, and temperature are within normal ranges for a client post-gastrectomy, so they do not require immediate reporting to the provider.

4. A client who has a new prescription for lisinopril is being taught by a nurse. Which of the following client statements indicates an understanding of the teaching?

• A. I should avoid using salt substitutes while taking this medication.
• B. I should take this medication with food to prevent nausea.
• C. I should increase my intake of potassium-rich foods while taking this medication.
• D. I should limit my fluid intake while taking this medication.

Correct answer: A

Rationale: The correct answer is A. Lisinopril can increase potassium levels, so clients should avoid salt substitutes that contain potassium. Choice B is incorrect because lisinopril is usually taken on an empty stomach. Choice C is incorrect because lisinopril can lead to hyperkalemia, so increasing potassium-rich foods is not recommended. Choice D is incorrect because lisinopril can cause increased urination, so fluid intake should not be limited.

5. A nurse is caring for a toddler who has acute lymphocytic leukemia. In which of the following activities should the toddler participate?

• A. Looking at alphabet flashcards
• B. Playing with a large plastic truck
• C. Using scissors to cut out paper shapes
• D. Watching a cartoon in the dayroom

Correct answer: B

Rationale: The correct answer is playing with a large plastic truck. This activity is suitable for toddlers as it promotes their development, encourages fine motor skills, and provides an opportunity for imaginative play. Looking at alphabet flashcards may be more suitable for older children who are learning letters and words. Using scissors to cut out paper shapes may pose a safety risk for a toddler, as they may not have the dexterity or understanding required for this activity. Watching a cartoon in the dayroom is a passive activity and does not actively engage the toddler in physical or cognitive development.

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