HESI RN
HESI RN Medical Surgical Practice Exam
1. A patient is being treated for shock after a motor vehicle accident. The provider orders 6% dextran 75 to be given intravenously. The nurse should expect which outcome as the result of this infusion?
- A. Decreased urine output
 - B. Improved blood oxygenation
 - C. Increased interstitial fluid
 - D. Stabilization of heart rate and blood pressure
 
Correct answer: D
Rationale: 6% Dextran 75 is a high molecular-weight colloidal solution used to treat shock from burns or trauma. Colloids like 6% dextran 75 are plasma expanders that help increase blood volume, leading to improved heart rate and blood pressure stabilization. The infusion of plasma expanders does not typically decrease urine output. It primarily aims to stabilize circulation rather than affect blood oxygenation or increase interstitial fluid levels.
2. The healthcare provider caring for a patient who will receive penicillin to treat an infection asks the patient about previous drug reactions. The patient reports having had a rash when taking amoxicillin (Amoxil). The healthcare provider will contact the provider to
- A. discuss giving a smaller dose of penicillin.
 - B. discuss using erythromycin (E-mycin) instead of penicillin.
 - C. request an order for diphenhydramine (Benadryl).
 - D. suggest that the patient receive cefuroxime (Ceftin).
 
Correct answer: B
Rationale: When a patient reports a previous rash with amoxicillin, which is a type of penicillin, there is a concern for a penicillin allergy. In such cases, using an alternative antibiotic like erythromycin, which is not a penicillin, is the appropriate approach to avoid potential cross-reactivity and allergic reactions. Giving smaller doses of penicillin does not address the underlying allergy issue and can still lead to severe hypersensitivity reactions. Diphenhydramine (Benadryl) is used to manage allergic reactions but should not be the first choice in changing the antibiotic. While some patients allergic to penicillins may also be allergic to cephalosporins like cefuroxime, it is not the best immediate alternative in this scenario.
3. Which of the following lab results is most indicative of dehydration?
- A. Low sodium levels.
 - B. Elevated creatinine levels.
 - C. Low potassium levels.
 - D. High blood glucose levels.
 
Correct answer: B
Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.
4. A client has just undergone insertion of a chest tube that is attached to a closed chest drainage system. Which action should the nurse plan to take in the care of this client?
- A. Assessing the client’s chest for crepitus every 24 hours
 - B. Taping the connections between the chest tube and the drainage system
 - C. Adding 20 mL of sterile water to the suction control chamber every shift
 - D. Recording the volume of secretions in the drainage collection chamber every 24 hours
 
Correct answer: B
Rationale: The correct action for the nurse to take in caring for a client with a chest tube connected to a closed chest drainage system is to tape the connections between the chest tube and the drainage system. This is done to prevent accidental disconnection, ensuring the system functions properly. Assessing the client’s chest for crepitus should be done more frequently than once every 24 hours to monitor for any air leaks. Adding sterile water to the suction control chamber is not necessary every shift; it should be done as needed to maintain the appropriate water level. Recording the volume of secretions in the drainage collection chamber should be done more frequently than every 24 hours, with hourly monitoring during the first 24 hours after insertion and every 8 hours thereafter to assess for changes or complications.
5. The client is receiving teletherapy radiation for a malignant tumor. Which instruction regarding skin care of the portal site should the nurse provide?
- A. Protect the skin of the radiation portal site from sunlight exposure
 - B. Apply moisturizing lotions daily to the radiation portal site
 - C. Avoid washing the skin inside the radiation portal site
 - D. Remove the ink marks of the portal after each radiation treatment
 
Correct answer: A
Rationale: Protecting the skin from sunlight exposure is crucial to prevent radiation burns and additional skin damage at the treatment site. Sun exposure can exacerbate skin reactions caused by radiation therapy. Applying moisturizing lotions daily may introduce foreign substances or irritants to the treated area, leading to potential complications. Washing the skin inside the radiation portal site is important for maintaining cleanliness and preventing infections. Removing the ink marks after each treatment is unnecessary and may cause unnecessary skin irritation and trauma.
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