HESI LPN
HESI Fundamentals Test Bank
1. The nurse is preparing to administer insulin to a client with type 1 diabetes. Which assessment finding would require the nurse to hold the insulin and contact the healthcare provider?
- A. Blood glucose of 100 mg/dL
- B. Client reports feeling shaky
- C. Client ate only half of breakfast
- D. Client is sweating
Correct answer: A
Rationale: A blood glucose of 100 mg/dL is relatively low for administering insulin, especially if the client has not eaten adequately; further assessment and contacting the provider are necessary. Hypoglycemia can be a serious concern when administering insulin, and a blood glucose level of 100 mg/dL indicates a risk of hypoglycemia. Holding the insulin and contacting the healthcare provider is crucial to prevent hypoglycemia-related complications. Choices B, C, and D are not immediate concerns for holding insulin as they do not directly indicate a risk of hypoglycemic events.
2. A client is being discharged home with oxygen therapy via a nasal cannula. Which of the following instructions should the nurse provide to the client and family?
- A. Wear cotton clothing to avoid static electricity.
- B. Avoid using any electrical appliances.
- C. Keep the oxygen tank away from heat sources.
- D. Use only a specific type of nasal cannula.
Correct answer: A
Rationale: The correct answer is A: Wear cotton clothing to avoid static electricity. When using oxygen therapy, static electricity can pose a hazard as it increases the risk of fire. Cotton clothing helps reduce static electricity buildup. Choice B, avoiding electrical appliances, is overly restrictive and not entirely necessary. Choice C, keeping the oxygen tank away from heat sources, is important to prevent fire hazards but is not directly related to the nasal cannula. Choice D, using only a specific type of nasal cannula, is not a universal guideline and limits flexibility in care.
3. A healthcare professional is caring for a group of clients. Which of the following measures should the professional take to prevent the spread of infection?
- A. Place a client with TB in a room with negative pressure airflow
- B. Use a disposable gown for contact precautions
- C. Place a client with MRSA in a private room
- D. Use a mask for clients with influenza
Correct answer: A
Rationale: Tuberculosis is an airborne infection, and placing a client with TB in a room with negative pressure airflow helps prevent the spread of the infection by containing the pathogens. This measure is crucial as it prevents the dissemination of TB droplet nuclei to other areas. Choice B, using a disposable gown for contact precautions, is important for preventing the transmission of infections spread by direct or indirect contact. Choice C, placing a client with MRSA in a private room, is essential to prevent the spread of MRSA through contact with others. Choice D, using a mask for clients with influenza, helps prevent the spread of influenza through respiratory droplets. However, negative pressure airflow is specifically required for airborne infections like TB, making it the most appropriate choice in this scenario.
4. A client with an NG tube is receiving intermittent feedings through an open system. Which of the following actions should the nurse take first?
- A. Rinse the feeding bag with water between feedings
- B. Tell the client to keep the head of the bed elevated at least 30°
- C. Make sure the enteral formula is at room temperature
- D. Wipe the top of the formula can with alcohol
Correct answer: B
Rationale: The correct answer is to tell the client to keep the head of the bed elevated at least 30°. Elevating the head of the bed prevents aspiration of the enteral formula, which is a priority in caring for a client with an NG tube. This action helps in reducing the risk of complications such as pneumonia. Choices A, C, and D are incorrect. While rinsing the feeding bag, ensuring the enteral formula temperature, and maintaining cleanliness are important aspects of enteral feeding care, the priority is to prevent aspiration by keeping the head of the bed elevated. These actions can be implemented after ensuring the client's safety by maintaining the correct bed position.
5. 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.
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