what is the proper technique for obtaining a blood specimen from a central venous line
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ATI PN Comprehensive Predictor 2020 Answers

1. What is the proper technique for obtaining a blood specimen from a central venous line?

Correct answer: A

Rationale: The correct technique for obtaining a blood specimen from a central venous line is to use sterile gloves and discard the first 10 mL of blood. This practice helps ensure that the blood sample collected is not contaminated. Choice B is incorrect because flushing the line with heparin before drawing the specimen can contaminate the sample. Choice C is incorrect as administering heparin before drawing the specimen can affect the accuracy of the blood sample. Choice D is incorrect as using non-sterile gloves increases the risk of contamination, which is not recommended when obtaining a blood specimen from a central venous line.

2. What are the primary goals of post-operative care for a patient who has undergone abdominal surgery?

Correct answer: A

Rationale: The correct answer is A: Pain Management. After abdominal surgery, one of the primary goals of post-operative care is to manage the patient's pain effectively to ensure their comfort and promote recovery. While wound care, prevention of complications, and ensuring digestive function are also important aspects of post-operative care, pain management takes precedence as it directly impacts the patient's well-being and recovery process.

3. A client with heart failure is receiving furosemide. Which of the following assessment findings indicates that the medication is effective?

Correct answer: B

Rationale: The absence of adventitious breath sounds indicates that furosemide is effective in managing heart failure. Adventitious breath sounds such as crackles indicate fluid accumulation in the lungs, a common complication of heart failure. Therefore, the absence of these abnormal sounds suggests that furosemide is effectively reducing fluid overload. Elevated blood pressure (choice A) is not a desired outcome in heart failure management. Weight gain (choice C) and decreased urine output (choice D) are signs of fluid retention and ineffective diuresis, indicating that furosemide is not working effectively.

4. Which intervention is most important for a client with chronic heart failure?

Correct answer: B

Rationale: The correct answer is to monitor the client's weight daily to assess fluid balance in clients with chronic heart failure. Monitoring weight helps in detecting fluid retention or fluid loss, which is crucial in managing heart failure. Encouraging fluid intake to prevent dehydration (choice A) may worsen fluid overload in heart failure patients. Limiting sodium intake (choice C) is essential but not the most important intervention compared to monitoring weight. Restricting daily activity (choice D) is not recommended as it is important for clients with heart failure to engage in appropriate levels of physical activity to maintain their overall health.

5. A client who is postpartum is being taught about breast care by a nurse. Which of the following statements by the client indicates an understanding of the teaching?

Correct answer: B

Rationale: The correct answer is B. Nursing the baby frequently helps prevent engorgement and discomfort in breastfeeding mothers. Choice A is incorrect because tight-fitting bras can lead to clogged milk ducts and worsen discomfort. Choice C may lead to oversupply issues and is not necessary unless there is a specific indication. Choice D is incorrect as avoiding nursing for extended periods can lead to engorgement and decreased milk supply.

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