HESI LPN
Practice HESI Fundamentals Exam
1. A home health nurse is discussing the dangers of carbon monoxide poisoning with a client. Which of the following information should the nurse include?
- A. Carbon monoxide does not have a distinct odor.
- B. Water heaters should be inspected every 5 years.
- C. The lungs are not damaged from carbon monoxide inhalation.
- D. Carbon monoxide binds with hemoglobin in the body.
Correct answer: D
Rationale: The correct answer is D: 'Carbon monoxide binds with hemoglobin in the body.' Carbon monoxide is an odorless, colorless gas, so it does not have a distinct odor (Choice A). While regular inspection of appliances like water heaters is important for safety, it is not directly related to carbon monoxide poisoning (Choice B). Carbon monoxide primarily affects the cardiovascular system by binding with hemoglobin, reducing the blood's ability to carry oxygen, rather than causing direct lung damage (Choice C). Understanding how carbon monoxide binds with hemoglobin is crucial in recognizing the mechanism of poisoning and its potential consequences.
2. The nurse is assessing a client who has just been admitted with a diagnosis of acute pancreatitis. Which finding is most important for the LPN/LVN to report to the healthcare provider immediately?
- A. Elevated serum lipase level
- B. Severe abdominal pain
- C. Nausea and vomiting
- D. Hypotension
Correct answer: D
Rationale: Hypotension is a critical finding that should be reported immediately in a client with acute pancreatitis as it may indicate severe complications such as hemorrhage or shock. While elevated serum lipase level, severe abdominal pain, and nausea/vomiting are common manifestations of acute pancreatitis, hypotension is a more urgent sign requiring immediate attention to prevent further deterioration. Hypotension can be a sign of significant fluid loss, hemorrhage, or sepsis, which are potentially life-threatening conditions that need prompt intervention. Elevated serum lipase levels, severe abdominal pain, and nausea/vomiting are important in the assessment of pancreatitis but do not indicate the same level of immediate danger as hypotension does.
3. A nurse is preparing to insert an IV catheter for an adult client. Which of the following actions should the nurse take?
- A. Choose the most distal site on the selected extremity
- B. Apply a cool compress to the selected extremity before insertion of the IV catheter
- C. Stroke the selected extremity before insertion of the IV catheter
- D. Place the tourniquet above the proposed insertion site
Correct answer: C
Rationale: When preparing to insert an IV catheter, stroking the extremity before insertion helps to visualize veins, making it easier to locate a suitable vein for catheter insertion. Choosing the most distal site on the extremity is correct because veins more distal are preferred for IV catheter insertion. Applying a cool compress to the extremity before insertion is unnecessary and not a standard practice. Placing the tourniquet below the proposed insertion site is incorrect; the tourniquet should be placed above the proposed insertion site to help engorge the veins for easier visualization and access.
4. When changing the client's dressing, which observation should the nurse report to the client's surgeon for a client recovering from an appendectomy for a ruptured appendix with a surgical wound healing by secondary intention?
- A. A halo of erythema on the surrounding skin
- B. Presence of serous drainage
- C. Edema around the wound
- D. Absence of granulation tissue
Correct answer: A
Rationale: A halo of erythema on the surrounding skin may indicate an infection or inflammation of the wound site, which is critical to report to the surgeon. Erythema, redness, and warmth are signs of inflammation that could potentially be a sign of an infected wound. Serous drainage is a common and expected finding in healing wounds, indicating a normal healing process. Edema around the wound might be expected due to the body's response to tissue injury. The absence of granulation tissue in a wound healing by secondary intention may not be an immediate concern as it forms during the later stages of wound healing.
5. The nurse is caring for a client who is receiving 24-hour total parenteral nutrition (TPN) via a central line at 54 ml/hr. When initially assessing the client, the nurse notes that the TPN solution has run out and the next TPN solution is not available. What immediate action should the nurse take?
- A. Infuse normal saline at a keep-vein-open rate.
- B. Discontinue the IV and flush the port with heparin.
- C. Infuse 10% dextrose and water at 54 ml/hr.
- D. Obtain a stat blood glucose level and notify the healthcare provider.
Correct answer: C
Rationale: Infusing 10% dextrose and water at 54 ml/hr is the correct action to prevent hypoglycemia until the next TPN solution becomes available. This solution will help maintain the client's glucose levels. Infusing normal saline at a keep-vein-open rate (Choice A) is not appropriate for maintaining glucose levels and would not address the nutritional needs provided by TPN. Discontinuing the IV and flushing the port with heparin (Choice B) is unnecessary and not indicated in this situation as the client still needs fluid and nutrition. Obtaining a stat blood glucose level and notifying the healthcare provider (Choice D) can be done later but is not the immediate action required when the TPN solution has run out.
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