HESI RN
HESI Medical Surgical Exam
1. A client is hospitalized with heart failure (HF). Which intervention should the nurse implement to improve ventilation and reduce venous return?
- A. Perform passive range of motion exercises
- B. Place the client in high Fowler's position
- C. Administer oxygen via nasal cannula
- D. Increase the client's activity level
Correct answer: B
Rationale: In clients with heart failure, placing them in high Fowler's position is beneficial as it helps reduce venous return and improve ventilation. This position aids in decreasing the workload on the heart by promoting better lung expansion and oxygenation. Passive range of motion exercises (Choice A) are not directly related to improving ventilation or reducing venous return. Administering oxygen via nasal cannula (Choice C) may help with oxygenation but does not directly address reducing venous return. Increasing the client's activity level (Choice D) may worsen heart failure symptoms by increasing the workload on the heart.
2. A client receiving warfarin (Coumadin) therapy should have which of the following laboratory results reviewed to evaluate the effectiveness of the therapy?
- A. Complete blood count (CBC).
- B. Prothrombin time (PT).
- C. International normalized ratio (INR).
- D. Partial thromboplastin time (PTT).
Correct answer: C
Rationale: The correct answer is C: International normalized ratio (INR). The INR is the most appropriate laboratory result to review when evaluating the effectiveness of warfarin (Coumadin) therapy. Warfarin is an anticoagulant medication, and the INR helps determine if the dosage is within a therapeutic range to prevent clotting or bleeding complications. Choice A, a Complete Blood Count (CBC), provides information about the cellular components of blood but does not directly assess the anticoagulant effects of warfarin. Choice B, Prothrombin time (PT), measures the time it takes for blood to clot but is not as specific for monitoring warfarin therapy as the INR. Choice D, Partial Thromboplastin Time (PTT), evaluates the intrinsic pathway of coagulation and is not the primary test used to monitor warfarin therapy.
3. The nurse is preparing to administer intravenous gentamicin to an infant through an intermittent needle. The nurse notes that the infant has not had a wet diaper for several hours. The nurse will perform which action?
- A. Administer the medication and give the infant extra oral fluids.
- B. Contact the provider to request adding intravenous fluids when giving the medication.
- C. Give the medication and obtain a serum peak drug level 45 minutes after the dose.
- D. Hold the dose and contact the provider to request a serum trough drug level.
Correct answer: D
Rationale: In this scenario, the infant not having a wet diaper for several hours indicates a potential decrease in urine output, which can be a sign of nephrotoxicity related to gentamicin. The correct action for the nurse is to hold the dose and contact the provider to request a serum trough drug level. This is important to monitor the drug levels and ensure that they are not reaching toxic levels. Administering the medication without addressing the decreased urine output could potentially lead to further nephrotoxicity. Contacting the provider to add intravenous fluids or obtaining a serum peak drug level are not the most appropriate actions in this situation as the priority is to assess for potential nephrotoxicity and ensure patient safety.
4. The patient is receiving acetazolamide (Diamox) for metabolic alkalosis and fluid overload. After taking the medication, the patient complains of right-sided flank pain. The nurse suspects that the patient has developed which condition?
- A. Gout
- B. Hemolytic anemia
- C. Metabolic acidosis
- D. Renal calculi
Correct answer: D
Rationale: The correct answer is D: Renal calculi. Acetazolamide, a carbonic anhydrase inhibitor, can lead to electrolyte imbalances and the formation of renal calculi. Right-sided flank pain is a classic symptom of renal calculi. Choices A, B, and C are incorrect. Gout is not typically associated with acetazolamide use. Hemolytic anemia and metabolic acidosis are not commonly linked to acetazolamide-induced side effects. Therefore, the patient's symptoms align more closely with the development of renal calculi.
5. A patient is diagnosed with Mycoplasma pneumonia. Which antibiotic will the nurse expect the provider to order to treat this infection?
- A. Azithromycin (Zithromax)
- B. Clarithromycin (Biaxin)
- C. Erythromycin (E-Mycin)
- D. Fidaxomicin (Dificid)
Correct answer: C
Rationale: Erythromycin is the drug of choice for treating Mycoplasma pneumonia. Mycoplasma pneumonia is typically sensitive to macrolide antibiotics, with erythromycin being one of the first-line agents. Azithromycin and clarithromycin are also effective in treating Mycoplasma pneumonia, but erythromycin is specifically mentioned as the drug of choice in this context. Fidaxomicin, on the other hand, is not indicated for the treatment of Mycoplasma pneumonia and is primarily used to treat Clostridium difficile infections.
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