HESI RN
HESI RN Medical Surgical Practice Exam
1. The nurse is preparing to give trimethoprim-sulfamethoxazole (TMP-SMX) to a patient and notes a petechial rash on the patient’s extremities. The nurse will perform which action?
- A. Hold the dose and notify the provider.
- B. Request an order for a blood glucose level.
- C. Request an order for a BUN and creatinine level.
- D. Request an order for diphenhydramine (Benadryl).
Correct answer: A
Rationale: When a patient on TMP-SMX presents with a petechial rash, it can be indicative of a severe adverse reaction such as thrombocytopenia or a hypersensitivity reaction. The appropriate action for the nurse to take in this situation is to hold the dose of TMP-SMX and notify the healthcare provider immediately. This is crucial to prevent further administration of a medication that may be causing a serious adverse effect. Requesting a blood glucose level (Choice B) is not relevant in this scenario as the patient's presentation is suggestive of a skin-related issue rather than a glucose-related problem. Similarly, requesting a BUN and creatinine level (Choice C) would not address the immediate concern of a petechial rash and its association with TMP-SMX. Requesting an order for diphenhydramine (Choice D) may help manage itching or mild allergic reactions but is not the priority when a petechial rash is observed, as it may indicate a more severe reaction requiring immediate intervention.
2. The nurse is caring for a patient whose serum sodium level is 140 mEq/L and serum potassium level is 5.4 mEq/L. The nurse will contact the patient’s provider to discuss an order for
- A. a low-potassium diet.
- B. intravenous sodium bicarbonate.
- C. Kayexalate and sorbitol.
- D. salt substitutes.
Correct answer: A
Rationale: In the scenario presented, the patient is experiencing mild hyperkalemia with a potassium level of 5.4 mEq/L. The appropriate intervention for mild hyperkalemia is a low-potassium diet to restrict potassium intake. This helps in managing and preventing further elevation of potassium levels. Intravenous sodium bicarbonate is not indicated as the patient's sodium level is normal at 140 mEq/L. Kayexalate, a cation-exchange resin, is typically used for severe hyperkalemia to promote potassium excretion. Salt substitutes, which often contain potassium chloride, should be avoided in patients with hyperkalemia as they can exacerbate the condition by increasing potassium levels further.
3. Which of the following is a priority intervention for a patient with heart failure?
- A. Administering diuretics.
- B. Administering oxygen.
- C. Administering beta-blockers.
- D. Administering vasodilators.
Correct answer: B
Rationale: Administering oxygen is a priority intervention in heart failure because it helps improve oxygenation, alleviate hypoxemia, and reduce the workload on the heart. Oxygen therapy is crucial in managing acute heart failure exacerbations. While diuretics (Choice A) are commonly used in heart failure to reduce fluid overload, administering oxygen takes precedence due to its immediate impact on oxygen delivery. Beta-blockers (Choice C) and vasodilators (Choice D) are also important in heart failure management, but in the acute setting, ensuring adequate oxygen supply is the priority.
4. To evaluate the positive effect of furosemide (Lasix) 40 mg/day in a client with chronic kidney disease (CKD), what is the best action for the nurse to take?
- A. Obtain daily weights of the client.
- B. Auscultate heart and breath sounds.
- C. Palpate the client’s abdomen.
- D. Assess the client’s diet history.
Correct answer: A
Rationale: The correct answer is A. Furosemide (Lasix) is a loop diuretic used to manage fluid overload and hypertension in clients with CKD. Monitoring daily weights is crucial as weight changes reflect fluid status. Each kilogram of weight change approximately corresponds to 1 liter of fluid retention or loss, making it essential for evaluating the medication's effectiveness. Auscultating heart and breath sounds is more relevant for heart failure cases with fluid retention, not specifically for assessing the effect of furosemide in CKD. Palpating the abdomen is not a direct indicator of furosemide's effectiveness; instead, assessing for edema would be appropriate. While assessing the client's diet history is important to monitor electrolyte balance due to potassium loss with furosemide, it does not directly evaluate the medication's efficacy.
5. The client with chronic renal failure is being taught about the importance of fluid restrictions. Which of the following statements by the client indicates that the teaching has been effective?
- A. I can drink as much fluid as I want, as long as I take my medication.
- B. I will need to limit my fluid intake to prevent fluid overload.
- C. I can drink as much water as I want, as long as I limit other fluids.
- D. I will need to drink only when I am thirsty.
Correct answer: B
Rationale: The correct answer is B: 'I will need to limit my fluid intake to prevent fluid overload.' In chronic renal failure, fluid restrictions are crucial to prevent fluid overload and further damage to the kidneys. Option A is incorrect as unrestricted fluid intake can worsen the condition. Option C is also incorrect as total fluid intake needs to be restricted, not just other fluids. Option D is not ideal because thirst may not accurately reflect the body's fluid needs in chronic renal failure.
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