HESI RN
HESI Fundamentals Practice Exam
1. The healthcare professional is administering an intermittent infusion of an antibiotic to a client with an antecubital saline lock. After opening the roller clamp on the IV tubing, the alarm on the infusion pump indicates an obstruction. What action should be taken first?
- A. Check for a blood return.
- B. Reposition the client's arm.
- C. Remove the IV site dressing.
- D. Flush the lock with saline.
Correct answer: B
Rationale: Repositioning the client's arm is the initial action to take when encountering an obstruction with an antecubital saline lock. Repositioning may correct any bending at the elbow that could be causing the obstruction, allowing for smoother infusion flow. Checking for a blood return, removing the IV site dressing, or flushing the lock with saline would be subsequent actions once the obstruction is addressed. Checking for a blood return is done to confirm proper placement, removing the IV site dressing is necessary for site assessment, and flushing the lock with saline helps maintain patency but should not be the first action when an obstruction is detected.
2. A client is to receive cimetidine (Tagamet) 300 mg q6h IVP. The preparation arrives from the pharmacy diluted in 50 ml of 0.9% NaCl. The nurse plans to administer the IVPB dose over 20 minutes. For how many ml/hr should the infusion pump be set to deliver the secondary infusion?
- A. 75 ml/hr
- B. 150 ml/hr
- C. 225 ml/hr
- D. 300 ml/hr
Correct answer: B
Rationale: To calculate the infusion rate, set up a ratio proportion problem: 50 ml/20 min = x ml/60 min. Cross multiply to solve: 50 × 60 / 20 = 150 ml/hr. Therefore, the infusion pump should be set to deliver the secondary infusion at a rate of 150 ml/hr. Option A, 75 ml/hr, is incorrect because it does not account for the correct calculation. Option C, 225 ml/hr, is incorrect as it is too high a rate based on the calculation. Option D, 300 ml/hr, is also incorrect as it does not align with the correct calculation for the infusion rate.
3. The healthcare provider who is preparing to give an adolescent client a prescribed antipsychotic medication notes that parental consent has not been obtained. Which action should the provider take?
- A. Review the chart for a signed consent for medication administration.
- B. Obtain parental consent before giving the medication.
- C. Do not give the medication and document the reason.
- D. Complete an incident report and notify the adolescent.
Correct answer: C
Rationale: The correct action is for the provider not to administer the medication and to document the reason. In the case of a minor, parental consent is required for medical treatment, including medication administration. It is important to follow legal and ethical guidelines to ensure the adolescent's well-being and rights are protected. Choice A is incorrect because simply reviewing the chart does not address the lack of parental consent. Choice B is incorrect as obtaining parental consent should be done before medication administration. Choice D is incorrect as notifying the adolescent is not the appropriate action in this situation, as parental consent is legally required for a minor's medical treatment.
4. When caring for an immobile client, what nursing diagnosis has the highest priority?
- A. Risk for fluid volume deficit.
- B. Impaired gas exchange.
- C. Risk for impaired skin integrity.
- D. Altered tissue perfusion.
Correct answer: B
Rationale: When caring for an immobile client, the nursing diagnosis with the highest priority is impaired gas exchange. This is because impaired gas exchange implies difficulty with breathing, which is essential for sustaining life. Adequate oxygenation is crucial for all bodily functions, and any impairment in gas exchange can lead to serious complications, making it the priority nursing diagnosis to address in an immobile client. Choices A, C, and D are important considerations as well when caring for an immobile client, but they are secondary to impaired gas exchange. Risk for fluid volume deficit may occur due to immobility, but ensuring proper gas exchange takes precedence as it directly impacts the client's immediate survival. Risk for impaired skin integrity is a concern in immobile clients but does not pose an immediate threat to life like impaired gas exchange. Altered tissue perfusion is also critical but is usually a consequence of impaired gas exchange, reinforcing the priority of addressing gas exchange first.
5. After ensuring correct tube placement, what action should the nurse take next when administering medications through a nasogastric tube (NGT) connected to suction?
- A. Clamp the tube for 20 minutes.
- B. Flush the tube with water.
- C. Administer the medications as prescribed.
- D. Crush the tablets and dissolve in sterile water.
Correct answer: B
Rationale: After ensuring the correct placement of the NGT, the nurse should flush the tube with water to prevent any obstructions and ensure proper medication delivery. Flushing the tube is essential before, after, and in between each medication administration. Clamping the tube for 20 minutes should be done after all medications are administered to prevent clogging. Administering medications as prescribed and preparing medications by crushing tablets and dissolving them in sterile water should only be done after the tube has been appropriately flushed to maintain its patency and effectiveness.
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