HESI LPN
Adult Health Exam 1 Chamberlain
1. A 9-year-old is receiving vancomycin 400 mg IV every 6 hours for a methicillin-resistant (Beta-lactam-resistant) Staphylococci aureus (MRSA) infection. The medication is diluted in a 100 mL bag of saline with instructions to infuse over one and a half hours. How many mL/hour should the nurse program the infusion pump?
- A. 50
- B. 67
- C. 57
- D. 70
Correct answer: B
Rationale: To calculate the infusion rate for vancomycin, you need to divide the total volume by the total time of infusion. In this case, the total volume is 100 mL, and the total time is 1.5 hours. Therefore, 100 mL รท 1.5 hours = 67 mL/hour. This means the nurse should program the infusion pump to deliver vancomycin at a rate of 67 mL/hour. Choice A (50) is incorrect as it does not reflect the correct calculation. Choice C (57) is incorrect as it is not the accurate calculation based on the provided information. Choice D (70) is incorrect as it does not correspond to the correct infusion rate calculation.
2. What is the primary purpose of a chest tube in a client's care?
- A. To drain air and fluid from the pleural space
- B. To prevent infection in the thoracic cavity
- C. To assist with lung expansion
- D. To monitor intrathoracic pressure
Correct answer: A
Rationale: The correct answer is A: To drain air and fluid from the pleural space. A chest tube is primarily used to remove accumulated air or fluid in the pleural space, preventing lung collapse or compromise of lung function. This intervention aims to re-expand the lung and enhance respiratory function. Choice B is incorrect because preventing infection is not the primary purpose of a chest tube. Choice C is incorrect as lung expansion is a result of draining the pleural space, not the primary goal. Choice D is incorrect as monitoring intrathoracic pressure is not the main objective of a chest tube insertion.
3. What intervention has the highest priority for a client with a fourth-degree midline laceration following the vaginal delivery of an 8-pound 10-ounce infant?
- A. Administer a prescribed stool softener
- B. Administer prescribed PRN sleep medications
- C. Encourage breastfeeding to promote uterine involution
- D. Encourage the use of prescribed analgesic perineal sprays
Correct answer: A
Rationale: Administering a prescribed stool softener is the highest priority intervention for a client with a fourth-degree midline laceration to prevent straining during bowel movements, which could potentially harm the healing laceration. Stool softeners help in maintaining soft stools, reducing the risk of injury to the suture line. Administering PRN sleep medications, encouraging breastfeeding, or promoting the use of analgesic perineal sprays are important aspects of care but are not the priority in this situation. Stool softeners play a crucial role in preventing complications and promoting healing in such cases, making it the most urgent intervention.
4. The nurse is monitoring a client's intravenous infusion and observes that the venipuncture site is cool to the touch, swollen, and the infusion rate is slower than the prescribed rate. What is the most likely cause of this finding?
- A. The solution's rate is too rapid
- B. The client has phlebitis
- C. The infusion site is infected
- D. The infusion is infiltrated
Correct answer: D
Rationale: The correct answer is D. An infiltrated IV occurs when fluid leaks into the surrounding tissue, causing coolness, swelling, and a slow infusion rate. Choice A is incorrect because a rapid solution rate does not typically cause these specific symptoms. Choice B, phlebitis, presents with redness, warmth, and tenderness along the vein, not coolness. Choice C, infection, usually manifests with redness, warmth, and possibly purulent drainage, not coolness and swelling.
5. The nurse is caring for a client postoperatively following a thyroidectomy. Which assessment finding should be reported to the healthcare provider immediately?
- A. Hoarseness of the voice.
- B. Slight swelling at the incision site.
- C. Tingling around the mouth.
- D. Mild fever.
Correct answer: C
Rationale: Tingling around the mouth should be reported to the healthcare provider immediately as it may indicate hypocalcemia, a potential complication after thyroidectomy. Hoarseness of the voice is common postoperatively due to surgical manipulation, slight swelling at the incision site is a normal response, and a mild fever can be expected after surgery. However, tingling around the mouth suggests a potential calcium imbalance, which requires prompt attention to prevent serious complications.
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