what is the proper technique for obtaining a blood specimen from a central venous line
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ATI LPN

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 is the process for taking a telephone order from a provider?

Correct answer: B

Rationale: The correct process for taking a telephone order from a provider involves reading back the information for accuracy. This step ensures that the order is correctly understood and reduces the risk of errors. While listing patient information (Choice A) is essential, it does not encompass the complete process of verifying the order. Having a witness listen to the order (Choice C) may not always be practical or necessary, as direct verification is more efficient. Writing down the order and following up (Choice D) is not as crucial as the immediate read-back process, which allows for real-time clarification and confirmation.

3. A nurse is caring for a client who is experiencing chronic pain. Which of the following interventions should the nurse implement?

Correct answer: C

Rationale: The correct intervention for a client experiencing chronic pain is to teach relaxation techniques, as it helps in managing pain more effectively by reducing stress and anxiety. Distractions like television (Choice A) may offer temporary relief but do not address the root cause of chronic pain. Administering pain medication around the clock (Choice B) may lead to dependency and not promote long-term pain management. While massage therapy (Choice D) can be beneficial, teaching relaxation techniques (Choice C) is more directly focused on empowering the client to manage their pain independently.

4. A nurse in a provider's office is collecting data from a preschooler. Which of the following findings should the nurse report to the provider?

Correct answer: D

Rationale: A heart rate of 146/min is abnormal for a preschooler and indicates tachycardia, which should be reported to the provider. Choices A, B, and C fall within normal ranges for a preschooler's heart rate (80-120/min) and respiratory rate (22-34/min), so they do not require immediate reporting. Option D is the correct answer as it deviates significantly from the normal range and may indicate an underlying health issue that needs attention.

5. What are the signs and symptoms of a potential infection?

Correct answer: A

Rationale: The correct answer is A: Fever, chills, and increased heart rate are classic signs of an infection. These symptoms indicate the body's response to an invading pathogen. Choice B, 'Increased white blood cell count and fever,' is not a primary symptom that a person would typically notice themselves, and white blood cell count needs to be tested. Choice C, 'Shortness of breath and confusion,' may indicate other conditions like heart or lung issues rather than a general infection. Choice D, 'Sweating and low blood pressure,' are not specific to infections and can be caused by various factors like heat or dehydration.

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