a nurse is preparing to draw a blood specimen from an adult clients central line all of the following actions for this procedure are correct except
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NCLEX-RN

Health Promotion and Maintenance NCLEX RN Questions

1. A healthcare professional is preparing to draw a blood specimen from an adult client's central line. All of the following actions for this procedure are correct EXCEPT:

Correct answer: B

Rationale: When drawing a blood specimen from a central line, the healthcare professional should disconnect any infusions that are currently running and that could contaminate the specimen. It is important to use a minimum size of a 10 cc syringe when using a central line to avoid placing too much pressure on the catheter. Cleaning the cap with alcohol and attaching a 5 cc syringe is not appropriate as a larger syringe size should be used for this procedure. Drawing 5 cc of a blood sample to discard and flushing with saline after the sample are correct steps in the process of drawing a blood specimen from a central line.

2. How can the dangers associated with wandering in Alzheimer's disease patients be prevented?

Correct answer: D

Rationale: The correct answer is 'All of the above.' Bed alarms, chair alarms, and door alarms are all effective measures to prevent the dangers associated with wandering in Alzheimer's disease patients. These alarms can alert caregivers when a patient tries to leave a designated area, helping to keep them safe. It is crucial to respond promptly to these alarms to ensure the patient's safety. Choices A, B, and C are incorrect individually as each type of alarm plays a vital role in a comprehensive wandering prevention strategy.

3. Which of the following interventions is necessary before insertion of an arterial line into the radial artery?

Correct answer: C

Rationale: Before inserting an arterial line into the radial artery, it is crucial to perform an Allen test. The Allen test assesses the collateral circulation to the hand by compressing both the radial and ulnar arteries. By occluding the radial artery and releasing the ulnar artery, the nurse can check if the ulnar artery can adequately supply blood to the hand if the radial artery is cannulated. This step ensures that there is adequate circulation to the hand post-insertion of the arterial line. Choice A, ensuring that the client does not need surgery, is not directly related to the insertion of an arterial line and is not a necessary step before the procedure. Choice B, assessing grip strength, is not specific to the vascular status of the hand and does not provide information about the adequacy of collateral circulation. Choice D, checking a serum potassium level, is unrelated to the assessment of radial artery patency and collateral circulation, which are the primary concerns before arterial line insertion.

4. All hospitals and nursing homes are mandated to have the goal of a restraint-free environment. The best way to achieve this goal is to ________________.

Correct answer: B

Rationale: All hospitals and nursing homes are mandated by JCAHO and state departments of health to have the goal of a restraint-free environment. This does not mean that no restraints can ever be used under any circumstances. The goal is to minimize the use of restraints and prioritize other preventive measures. Restraining a patient should only be considered when all other preventive strategies have failed, and the patient is at risk of harm. Therefore, the best approach is to limit the use of restraints to situations where falls cannot be prevented, ensuring that restraints are used as a last resort to maintain patient safety. Choices C and D are not ideal solutions as they do not address the appropriate use of restraints in a restraint-free environment.

5. A client must use a non-rebreathing oxygen mask. Which of the following statements is true regarding this type of mask?

Correct answer: A

Rationale: A non-rebreather mask is used for supplemental oxygen delivery for clients experiencing breathing difficulties. The non-rebreather mask includes a one-way valve that allows exhaled air to escape, preventing the rebreathing of carbon dioxide. The client inhales oxygenated air from a reservoir bag attached to the mask, providing high-concentration oxygen therapy. A non-rebreather mask can deliver FiO2 levels of up to 90%, making it an effective intervention for clients requiring high oxygen concentrations. Therefore, the statement that 'A non-rebreather can provide an FiO2 of 40%' is correct. Choices B, C, and D are incorrect because clients should breathe through their nose and mouth, the mask offers a reservoir for inhaling oxygen, and the mask should be assessed and potentially replaced if soiled or damaged, not routinely changed every 3 hours.

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