HESI RN
HESI 799 RN Exit Exam
1. A nurse plans to call the healthcare provider to report an 0600 serum potassium level of 2 mEq/L or mmol/L (SI), but the charge nurse tells the nurse that the healthcare provider does not like to receive early morning calls and will make rounds later in the morning. What action should the nurse take?
- A. Contact the healthcare provider immediately to report the laboratory value regardless of the advice.
- B. Document the finding and report it when the healthcare provider makes rounds.
- C. Notify the charge nurse that you are following the chain of command.
- D. Administer a potassium supplement and notify the provider later.
Correct answer: A
Rationale: A nurse should contact the healthcare provider immediately to report a critically low potassium level of 2 mEq/L. Potassium levels below the normal range can lead to life-threatening complications such as cardiac arrhythmias. Prompt notification is essential to ensure timely intervention and prevent harm to the patient. Option B is incorrect as delaying reporting such a critical value can jeopardize patient safety. Option C is not the priority in this situation; the focus should be on patient care. Option D is dangerous and inappropriate as administering a potassium supplement without healthcare provider's guidance can be harmful, especially with a critically low level.
2. 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.
3. While caring for a toddler receiving oxygen (02) via face mask, the nurse observes that the child's lips and nares are dry and cracked. Which intervention should the nurse implement?
- A. Ask the mother what she usually uses on the child's lips and nose.
- B. Apply a petroleum jelly (Vaseline) to the child's nose and lips.
- C. Use a topical lidocaine (Zylocaine viscous) analgesic for cracked lips.
- D. Use a water-soluble lubricant on affected oral and nasal mucosa.
Correct answer: D
Rationale: A water-soluble lubricant is safe to use in conjunction with oxygen therapy, unlike petroleum jelly which is flammable.
4. A client with chronic kidney disease (CKD) is receiving erythropoietin therapy. Which laboratory value should the nurse monitor closely?
- A. Serum potassium
- B. Hemoglobin
- C. White blood cell count
- D. Serum creatinine
Correct answer: A
Rationale: The correct answer is A: Serum potassium. When a client with chronic kidney disease is receiving erythropoietin therapy, monitoring serum potassium closely is essential. Erythropoietin therapy can lead to increased red blood cell production, which may cause potassium levels to rise, potentially resulting in hyperkalemia. Monitoring potassium levels helps prevent complications associated with hyperkalemia. Choices B, C, and D are incorrect because they are not directly impacted by erythropoietin therapy in the context of CKD.
5. The nurse is caring for a client with a chest tube in place following a pneumothorax. Which finding requires immediate intervention?
- A. Oxygen saturation of 95%
- B. Crepitus around the insertion site
- C. Subcutaneous emphysema
- D. Drainage of 50 ml per hour
Correct answer: C
Rationale: Subcutaneous emphysema requires immediate intervention in a client with a chest tube following a pneumothorax as it can indicate a pneumothorax recurrence or air leak. Oxygen saturation of 95% is within the normal range and does not require immediate intervention. Crepitus around the insertion site can be expected post-procedure and may not necessitate immediate action. Drainage of 50 ml per hour is a normal finding and does not raise immediate concerns.
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