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 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.
3. A client with stress incontinence is being taught about pelvic muscle exercises. Which statements should be included by the nurse? (Select all that apply.)
- A. Starting and stopping the urine stream involves using pelvic muscles.
- B. Tighten pelvic muscles for a slow count of 10 and then relax for a slow count of 10.
- C. Pelvic muscle exercises can be performed in various positions: lying down, sitting up, and standing.
- D. A & B
Correct answer: D
Rationale: The correct statements to include when teaching a client with stress incontinence about pelvic muscle exercises are that starting and stopping the urine stream involve using pelvic muscles and that tightening pelvic muscles for a slow count of 10 and then relaxing for a slow count of 10 can help strengthen them. It is essential to highlight that pelvic muscle exercises can be performed in various positions, including lying down, sitting up, and standing. This variety in positions helps engage the muscles effectively. Performing these exercises 15 times in each position can aid in strengthening the pelvic floor muscles. Consistent exercise over several weeks typically leads to improved control over urine leakage. Choice C is incorrect because pelvic muscle exercises can be performed in different positions and are not limited to sitting upright with feet on the floor.
4. A client with diabetes mellitus who is taking NPH insulin (Humulin N) in the evening is most likely to become hypoglycemic shortly after midnight because this insulin peaks in 6 to 8 hours. What intervention should the nurse recommend to help prevent hypoglycemia while the client is sleeping?
- A. Eat a bedtime snack.
- B. Avoid physical activity.
- C. Take half the usual dose of insulin.
- D. Discontinue insulin until the next meal.
Correct answer: A
Rationale: Eating a bedtime snack is the most appropriate intervention to prevent hypoglycemia during the night when NPH insulin peaks. This snack helps maintain blood glucose levels and counteracts the risk of hypoglycemia. Avoiding physical activity is not recommended as it can further lower blood sugar levels. Taking half the usual dose of insulin can lead to inadequate control of blood sugar levels. Discontinuing insulin until the next meal can result in uncontrolled hyperglycemia, especially during the peak action of NPH insulin.
5. The nurse is preparing to administer clarithromycin to a patient. When performing a medication history, the nurse learns that the patient takes warfarin to treat atrial fibrillation. The nurse will perform which action?
- A. Ask the provider if azithromycin may be used instead of clarithromycin.
- B. Obtain an order for continuous cardiovascular monitoring.
- C. Request an order for periodic serum warfarin levels.
- D. Withhold the clarithromycin and notify the provider.
Correct answer: C
Rationale: When a patient taking warfarin also needs to receive clarithromycin, it is essential to monitor periodic serum warfarin levels. Macrolides, including clarithromycin, can increase serum levels of drugs like warfarin. Monitoring serum drug levels helps ensure that the patient's warfarin dose can be adjusted, if necessary, to maintain therapeutic levels. Asking about using azithromycin instead is not the most appropriate action in this situation, as all macrolides can interact with warfarin. Continuous cardiovascular monitoring is not indicated solely based on the use of clarithromycin. Withholding the clarithromycin without proper assessment could delay necessary treatment and is not the best initial action.
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