HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is admitting a client who has tuberculosis. Which of the following types of transmission precautions should the healthcare professional plan to initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective environment
Correct answer: C
Rationale: Tuberculosis is transmitted through airborne particles, so airborne precautions are necessary to prevent the spread of the disease. Airborne precautions (Choice C) involve measures such as negative pressure rooms and N95 respirators to prevent the transmission of infectious agents that remain infectious over long distances when suspended in the air. Contact precautions (Choice A) are used for diseases that spread through direct contact with the patient or their environment. Droplet precautions (Choice B) are for diseases transmitted through respiratory droplets, typically over short distances. Protective environment (Choice D) is used for clients who are immunocompromised to protect them from environmental pathogens, not for diseases like tuberculosis that spread through the air.
2. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
3. The healthcare provider is assessing a client with acute pancreatitis. Which finding is most concerning?
- A. Pain radiating to the back
- B. Blood pressure of 95/60 mmHg
- C. Elevated serum amylase
- D. Absent bowel sounds
Correct answer: B
Rationale: In acute pancreatitis, a low blood pressure of 95/60 mmHg is the most concerning finding as it may indicate hypovolemia or shock, which are critical conditions requiring immediate intervention. Pain radiating to the back is a common symptom of pancreatitis but is not as immediately life-threatening as hypotension. Elevated serum amylase levels and absent bowel sounds are typical findings in acute pancreatitis and may indicate pancreatic inflammation and gastrointestinal motility issues, respectively, but they are not as acutely concerning as hypotension.
4. A client is to have mafenide (Sulfamylon) cream applied to burned areas. For which serious side effect of mafenide therapy should the LPN/LVN monitor this client?
- A. Curling ulcer
- B. Renal shutdown
- C. Metabolic acidosis
- D. Hemolysis of red blood cells
Correct answer: C
Rationale: Corrected Rationale: Metabolic acidosis is a serious side effect of mafenide therapy that should be closely monitored. Mafenide can lead to metabolic acidosis due to its inhibition of carbonic anhydrase, resulting in the accumulation of carbonic acid. Curling ulcer (Choice A) is a stress-related mucosal lesion that occurs in the duodenum, primarily due to severe burns, not directly related to mafenide therapy. Renal shutdown (Choice B) is not a common side effect of mafenide therapy. Hemolysis of red blood cells (Choice D) is not a recognized side effect of mafenide cream application.
5. A client has a closed wound drainage system. Which of the following actions should the nurse take?
- A. Avoid pressing the container down to create a vacuum
- B. Wear sterile gloves while handling the drainage system
- C. Reset the container with the drainage port closed
- D. Maintain the drain in a dependent position to facilitate drainage
Correct answer: D
Rationale: In a closed wound drainage system, it is essential to maintain the drain in a dependent position to allow for proper drainage. Gravity aids in the flow of drainage, preventing fluid backflow or pooling. Avoiding pressing the container down to create a vacuum (Choice A) is crucial as it can lead to complications in the system. Wearing sterile gloves (Choice B) is important for infection control when handling the drainage system. Resetting the container with the drainage port closed (Choice C) is incorrect as it can cause spillage and contamination of the surrounding area.
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