HESI RN
Adult Health 2 HESI Quizlet
1. An older patient receiving iso-osmolar continuous tube feedings develops restlessness, agitation, and weakness. Which laboratory result should the nurse report to the health care provider immediately?
- A. K+ 3.4 mEq/L (3.4 mmol/L)
- B. Ca+2 7.8 mg/dL (1.95 mmol/L)
- C. Na+ 154 mEq/L (154 mmol/L)
- D. PO4-3 4.8 mg/dL (1.55 mmol/L)
Correct answer: C
Rationale: The correct answer is C. The elevated serum sodium level (154 mEq/L) is consistent with the patient's neurologic symptoms of restlessness, agitation, and weakness, indicating a need for immediate action to prevent complications like seizures. The potassium level (3.4 mEq/L) and calcium level (7.8 mg/dL) are slightly off from normal but do not require immediate action. The phosphate level (4.8 mg/dL) is normal and not related to the symptoms presented by the patient.
2. IV potassium chloride (KCl) 60 mEq is prescribed for the treatment of a patient with severe hypokalemia. Which action should the nurse take?
- A. Administer the KCl as a rapid IV bolus.
- B. Infuse the KCl at a rate of 10 mEq/hour.
- C. Only give the KCl through a central venous line.
- D. Discontinue cardiac monitoring during the infusion.
Correct answer: B
Rationale: The correct action for the nurse to take is to infuse the KCl at a rate of 10 mEq/hour. Rapid IV infusion of KCl can lead to cardiac arrest due to its potential for causing hyperkalemia. While KCl can be administered through peripheral veins, central venous lines are not necessary unless specified. It is crucial to continue cardiac monitoring during potassium infusion to promptly identify and manage any potential dysrhythmias that may occur.
3. A patient is admitted to the emergency department with severe fatigue and confusion. Laboratory studies are done. Which laboratory value will require the most immediate action by the nurse?
- A. Arterial blood pH is 7.32.
- B. Serum calcium is 18 mg/dL.
- C. Serum potassium is 5.1 mEq/L
- D. Arterial oxygen saturation is 91%.
Correct answer: B
Rationale: The correct answer is B. A serum calcium level of 18 mg/dL is significantly elevated, posing a high risk for cardiac dysrhythmias. Immediate action is required to initiate cardiac monitoring and notify the healthcare provider. While the abnormalities in arterial blood pH, serum potassium, and arterial oxygen saturation also need attention, they are not as immediately life-threatening as the critically high serum calcium level. Therefore, addressing the serum calcium level takes precedence in this scenario.
4. The home health nurse cares for an alert and oriented older adult patient with a history of dehydration. Which instructions should the nurse give to this patient related to fluid intake?
- A. Increase fluids if your mouth feels dry.
- B. More fluids are needed if you feel thirsty.
- C. Drink more fluids in the late evening hours.
- D. If you feel lethargic or confused, you need more to drink.
Correct answer: A
Rationale: The correct answer is A. An alert, older patient can self-assess for signs of dehydration like dry mouth. This instruction is appropriate as it encourages the patient to respond to early signs of dehydration. Choice B is incorrect because the thirst mechanism decreases with age and feeling thirsty may not accurately indicate the need for fluids. Choice C is incorrect as many older patients prefer to limit evening fluid intake to enhance sleep quality. Choice D is incorrect because an older adult who is lethargic or confused may not be able to accurately assess their need for fluids.
5. When assessing a male client, the nurse finds that he is fatigued, and is experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client's laboratory values to validate the existence of which?
- A. Hyperphosphatemia
- B. Hypocalcemia
- C. Hypermagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The correct answer is D, Hypokalemia. Generalized weakness, muscle weakness, leg cramps, and cardiac dysrhythmias are manifestations of hypokalemia. Checking the potassium level is essential in this case. Hypocalcemia typically presents with facial muscle spasms, not the symptoms mentioned. Hypermagnesemia does not typically cause the symptoms described. It's important to note that orange juice is high in potassium and would be advisable to drink if the patient was hypokalemic. Loose stools are more commonly associated with hyperkalemia, not hypokalemia.
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