HESI LPN
Fundamentals HESI
1. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the LPN/LVN monitor closely while the client is taking this medication?
- A. Blood glucose level
- B. Prothrombin time (PT) and INR
- C. Serum potassium level
- D. Serum creatinine level
Correct answer: B
Rationale: The LPN/LVN should closely monitor Prothrombin time (PT) and INR (Choice B) levels in a client receiving warfarin. These values are crucial to ensure the medication's effectiveness and prevent complications like bleeding. Monitoring blood glucose level (Choice A) is not directly relevant to warfarin therapy. While serum potassium level (Choice C) and serum creatinine level (Choice D) are important for other conditions or medications, they are not specifically required to be monitored when a client is on warfarin.
2. A healthcare professional is measuring vital signs for a client and notices an irregularity in the pulse. Which of the following actions should the healthcare professional take?
- A. Count the apical pulse rate for 1 full minute, and describe the rhythm in the chart.
- B. Recheck the pulse at the same site after 5 minutes.
- C. Measure the client’s blood pressure.
- D. Record the irregularity and continue with other vital signs.
Correct answer: A
Rationale: When an irregular pulse is detected, it is essential to count the apical pulse rate for a full minute to accurately determine the rhythm. This ensures a comprehensive assessment and helps in identifying any potential issues or abnormalities. Rechecking the pulse at the same site after 5 minutes (Choice B) may not provide an immediate understanding of the irregularity. Measuring the client's blood pressure (Choice C) is important but not directly related to addressing the irregular pulse. Recording the irregularity and continuing with other vital signs (Choice D) may overlook a potentially serious cardiac issue that requires immediate attention.
3. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?
- A. Decreased calcium
- B. Elevated potassium
- C. Increased sodium
- D. Low hemoglobin
Correct answer: A
Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.
4. While starting an intravenous infusion (IV) for a client, the nurse notices that her gloved hands get spotted with blood. The client has not been diagnosed with any infection transmitted via the bloodstream. Which of the following should the nurse do as soon as the task is completed?
- A. Remove the gloves carefully and follow with hand hygiene
- B. Change gloves and continue
- C. Wash hands immediately without removing gloves
- D. Report the incident to the supervisor
Correct answer: A
Rationale: After completing the task, the nurse should remove the gloves carefully and follow with hand hygiene. This practice is crucial to prevent the transmission of any potential pathogens, maintain cleanliness, and reduce the risk of infection. Changing gloves and continuing without proper hand hygiene may lead to contamination. Washing hands immediately without removing gloves is not recommended as it does not ensure thorough hand hygiene. Reporting the incident to the supervisor should be done if there are specific protocols in place for such incidents, but immediate hand hygiene is the priority in this scenario to ensure patient and nurse safety.
5. A client has a new prescription for parenteral nutrition (PN) in 20% dextrose and fat emulsions. Which of the following is an appropriate action to include in the plan of care?
- A. Monitor blood glucose levels daily.
- B. Change the PN infusion bag every 24 hours.
- C. Prepare the client for a central venous line.
- D. Administer the PN and fat emulsion together.
Correct answer: C
Rationale: When a client requires parenteral nutrition (PN) with a high dextrose concentration, such as 20%, it typically has a high osmolarity. High osmolarity solutions should be infused through a central venous line to prevent peripheral vein irritation and potential complications. Therefore, preparing the client for a central venous line is essential for the safe administration of PN with high dextrose. Monitoring blood glucose levels daily is important but not directly related to the need for a central venous line. Changing the PN infusion bag every 24 hours helps prevent bacterial contamination, but it is not the most critical action in this scenario. Administering the PN and fat emulsion together or separately is a matter of compatibility and administration guidelines, but it is not the key concern in this situation.
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