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. A nurse is caring for a client who is at 41 weeks of gestation and is receiving oxytocin for labor induction. The nurse notes early decelerations on the fetal heart rate monitor. Which of the following nursing actions should the nurse take?

Correct answer: A

Rationale: The correct action for early decelerations, which are caused by fetal head compression and are considered normal during labor, is to continue monitoring the fetal heart rate. Early decelerations mirror contractions and usually do not require any intervention. Stopping the oxytocin infusion (Choice B) is not necessary as early decelerations are not typically a cause for concern related to oxytocin. Performing a vaginal examination (Choice C) or initiating an amnioinfusion (Choice D) are unnecessary and not indicated specifically for early decelerations.

3. A client with diabetes is being discharged. What is the most important teaching point?

Correct answer: B

Rationale: The most important teaching point for a client with diabetes being discharged is to administer insulin before meals as prescribed. This is crucial for managing blood sugar levels effectively and preventing complications. Monitoring blood sugar levels once in the morning (Choice A) is not sufficient for proper diabetes management, as levels can fluctuate throughout the day. Taking medication only when feeling unwell (Choice C) is not recommended as diabetes treatment is based on a regular schedule. Monitoring glucose levels weekly (Choice D) is not frequent enough to provide the necessary information for managing diabetes on a day-to-day basis.

4. A nurse is caring for a client post-abdominal surgery who has an NG tube. The client reports nausea and a decrease in gastric output. What should the nurse do first?

Correct answer: B

Rationale: The correct answer is to irrigate the NG tube with sterile water first. This action helps to relieve blockages that may be causing the decrease in gastric output and nausea. Turning the client onto their left side may not directly address the issue with the NG tube. Increasing the suction pressure can further exacerbate the problem and should not be done without assessing the situation first. Removing the NG tube and replacing it with a new one is a more invasive step that should be considered only if other measures are unsuccessful.

5. A client with a tracheostomy is exhibiting signs of respiratory distress. What is the nurse's immediate priority?

Correct answer: B

Rationale: When a client with a tracheostomy is experiencing respiratory distress, the immediate priority for the nurse is to suction the tracheostomy. This action helps clear the airway of secretions and ensures that the client can breathe effectively. Increasing the oxygen flow rate may be necessary but addressing the airway obstruction is more critical. Notifying the physician immediately is important but may cause a delay in addressing the immediate need for airway clearance. Administering a bronchodilator may help with bronchospasm but should not take precedence over ensuring a clear airway in a client with respiratory distress.

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A nurse is assisting with monitoring a client who is at 40 weeks of gestation and is in active labor. The nurse recognizes late decelerations on the fetal monitor tracing. Which of the following actions should the nurse take?
A nurse is providing discharge instructions for a client with diabetes. What is the most important teaching point?
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