HESI RN
HESI Fundamentals Practice Exam
1. The healthcare professional is preparing to administer 10 mL of liquid potassium chloride through a feeding tube, followed by 10 mL of liquid acetaminophen. Which action should the healthcare professional include in this procedure?
- A. Dilute each of the medications with sterile water prior to administration.
- B. Mix the medications in one syringe before opening the feeding tube.
- C. Administer water between the doses of the two liquid medications.
- D. Withdraw any fluid from the tube before instilling each medication.
Correct answer: C
Rationale: To maintain patency and ensure proper medication delivery, water should be instilled into the feeding tube between administering the two medications. This helps prevent clogging of the tube and ensures that both medications are delivered effectively without interference from remnants of the previous medication. Diluting the medications with sterile water before administration (choice A) is unnecessary and may alter the medication concentration. Mixing the medications in one syringe (choice B) could lead to interactions or chemical reactions between the medications. Withdrawing fluid from the tube before instilling each medication (choice D) is not required and may increase the risk of tube displacement or misplacement.
2. After an adult had an indwelling catheter removed, the nurse catheterizes them as ordered and obtains 200 cc of urine. What is the best interpretation of this finding?
- A. Is voiding normally.
- B. Has urinary retention.
- C. Has developed renal failure.
- D. Needs an indwelling catheter.
Correct answer: B
Rationale: The finding of obtaining 200 cc of urine after catheterization indicates urinary retention, as the bladder did not empty completely after the first void. This situation may require further assessment and intervention to address the issue of incomplete bladder emptying. Choice A is incorrect because voiding normally would indicate a larger amount of urine output. Choice C is incorrect as renal failure would typically present with other signs and symptoms. Choice D is incorrect as the presence of urinary retention does not necessarily mean the need for an indwelling catheter immediately.
3. A CVA (stroke) patient goes into respiratory distress and is placed on a ventilator. The client’s daughter arrives with a durable power of attorney and a living will that indicates there should be no extraordinary life-saving measures. What action should the nurse take?
- A. Refer to the risk manager
- B. Notify the healthcare provider
- C. Discontinue the ventilator
- D. Review the medical record
Correct answer: B
Rationale: In this situation, the nurse should notify the healthcare provider. The healthcare provider needs to be informed to review the legal documents provided by the patient's daughter, such as the durable power of attorney and living will, which specify the patient's wishes regarding life-saving measures. The healthcare provider will be responsible for making the appropriate decision based on the legal documents and the patient's current condition. Referring to the risk manager (choice A) is not necessary as the issue at hand pertains to the patient's medical care. Discontinuing the ventilator (choice C) without healthcare provider input could go against the patient's wishes and legal documents. Reviewing the medical record (choice D) may not provide immediate guidance on the current situation and the patient's preferences regarding life-saving measures.
4. Twenty minutes after beginning a heat application, the client states that the heating pad no longer feels warm enough. What is the best response by the nurse?
- A. That means you have derived the maximum benefit, and the heat can be removed.
- B. Your blood vessels are becoming dilated and removing the heat from the site.
- C. We will increase the temperature by 5 degrees when the pad no longer feels warm.
- D. The body's receptors adapt over time as they are exposed to heat.
Correct answer: D
Rationale: Choice (D) describes thermal adaptation, which occurs 20 to 30 minutes after heat application. The body's receptors adjust to the constant heat exposure, leading to a decreased sensation of warmth. Choices (A) and (B) provide inaccurate information regarding the situation, while choice (C) is not physiologically sound and could potentially harm the client by increasing the temperature unnecessarily.
5. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
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