HESI RN
HESI 799 RN Exit Exam
1. The nurse needs to add a medication to a liter of 5% Dextrose in Water (D5W) that is already infusing into a client. At what location should the nurse inject the medication?
- A. Medication port
- B. IV drip chamber
- C. Y-site connector
- D. At the hub of the IV catheter
Correct answer: A
Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.
2. The nurse is preparing a 50 ml dose of 50% dextrose IV for a client with insulin shock. What is the most immediate intervention by the nurse?
- A. Dilute the dextrose in one liter of 0.9% Normal Saline solution.
- B. Mix the dextrose in a 50 ml piggyback for a total volume of 100 ml.
- C. Push the undiluted dextrose slowly through the current IV infusion.
- D. Ask the pharmacist to add the dextrose to a TPN solution.
Correct answer: C
Rationale: The correct immediate intervention by the nurse in this situation is to push the undiluted 50% dextrose slowly through the current IV infusion. This is because in cases of insulin shock, where the client has dangerously low blood sugar levels, administering 50% dextrose directly into the bloodstream helps rapidly increase blood glucose levels. Choice A is incorrect because diluting the dextrose in one liter of normal saline would delay the administration of glucose, which is needed urgently. Choice B is incorrect as mixing the dextrose in a piggyback solution would also delay the administration of the concentrated dextrose. Choice D is incorrect because adding dextrose to a TPN solution is not the immediate intervention needed to address the low blood sugar levels in a client experiencing insulin shock.
3. The healthcare provider prescribes atenolol 50 mg daily for a client with angina pectoris. Which finding should the nurse report to the healthcare provider before administering this medication?
- A. Irregular pulse.
- B. Tachycardia.
- C. Chest pain.
- D. Urinary frequency.
Correct answer: A
Rationale: The correct answer is A: Irregular pulse. An irregular pulse may indicate an arrhythmia, which could be exacerbated by atenolol, a beta-blocker used to treat angina pectoris. Atenolol works by slowing the heart rate, so if the patient already has an irregular pulse, it could worsen with the medication. Tachycardia (choice B) would actually be an expected finding in a patient with angina pectoris, and atenolol is used to help reduce the heart rate in such cases. Chest pain (choice C) is a symptom that atenolol is meant to alleviate, so it would not be a reason to withhold the medication. Urinary frequency (choice D) is not directly related to the administration of atenolol for angina pectoris and would not require immediate reporting to the healthcare provider.
4. During the initial newborn assessment, the nurse finds that a newborn's heart rate is irregular. Which intervention should the nurse implement?
- A. Notify the pediatrician immediately.
- B. Teach the parents about congenital heart defects.
- C. Document the finding in the infant's record.
- D. Apply oxygen via nasal cannula at 3 L/min.
Correct answer: C
Rationale: The correct intervention when a nurse finds an irregular heart rate in a newborn is to document the finding in the infant's record. An irregular heart rate is a common occurrence in newborns and does not necessarily require immediate medical intervention. Notifying the pediatrician immediately is unnecessary unless there are other concerning symptoms. Teaching the parents about congenital heart defects is not the priority in this situation. Applying oxygen via nasal cannula at 3 L/min is not indicated for an irregular heart rate without further assessment or medical indication.
5. An adolescent's mother calls the clinic because the teen is having recurrent vomiting and has been combative in the last 2 days. The mother states that the teen takes vitamins, calcium, and magnesium supplements along with aspirin. Which nursing intervention has the highest priority?
- A. Advise the mother to withhold all medications by mouth.
- B. Instruct the mother to take the teen to the emergency room.
- C. Recommend that the teen withhold food and fluids for 2 hours.
- D. Suggest that the adolescent breathe slowly and deeply.
Correct answer: B
Rationale: In this scenario, the highest priority nursing intervention is to instruct the mother to take the teen to the emergency room. The symptoms of recurrent vomiting, combative behavior, and the medications (vitamins, calcium, magnesium supplements, and aspirin) taken by the teen suggest a possible overdose or serious adverse reaction. Therefore, immediate medical evaluation is crucial to assess and manage any potential toxicity or adverse effects. Advising to withhold all medications by mouth (Choice A) may delay necessary treatment. Recommending withholding food and fluids for 2 hours (Choice C) may not address the underlying cause of the symptoms. Suggesting slow and deep breathing (Choice D) is not appropriate in this urgent situation requiring immediate medical attention.
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