HESI LPN
HESI Fundamental Practice Exam
1. A client with pneumonia has a decrease in oxygen saturation from 94% to 88% while ambulating. Based on these findings, which intervention should the LPN/LVN implement first?
- A. Assist the ambulating client back to the bed.
- B. Encourage the client to ambulate to resolve pneumonia.
- C. Obtain a prescription for portable oxygen while ambulating.
- D. Move the oximetry probe from the finger to the earlobe.
Correct answer: A
Rationale: The correct intervention is to assist the client back to bed. A decrease in oxygen saturation while ambulating indicates hypoxemia, and the immediate priority is to stabilize oxygen levels. Returning the client to bed allows for rest and decreased oxygen demand, potentially preventing further desaturation. Encouraging continued ambulation (Choice B) may worsen the hypoxemia by increasing oxygen demand. Obtaining portable oxygen (Choice C) is essential but should not delay addressing the low oxygen saturation. Moving the oximetry probe (Choice D) may not address the underlying cause of decreased oxygen saturation and should not be the first intervention.
2. The healthcare provider is assessing a client with a history of congestive heart failure. Which assessment finding would be most concerning?
- A. Shortness of breath on exertion
- B. Weight gain of 2 pounds in a week
- C. Orthopnea
- D. Crackles in the lungs
Correct answer: D
Rationale: Crackles in the lungs are concerning because they indicate pulmonary congestion, a serious complication of congestive heart failure. The presence of crackles suggests fluid accumulation in the lungs, requiring immediate attention to prevent respiratory distress and worsening heart failure. While shortness of breath on exertion, weight gain, and orthopnea are common signs and symptoms of heart failure, crackles specifically point to acute pulmonary edema or worsening congestion, making them the most concerning finding in this scenario.
3. The mother of a 2 year-old hospitalized child asks the nurse's advice about the child's screaming every time the mother gets ready to leave the hospital room. What is the best response by the nurse?
- A. I think you or your partner needs to stay with the child while in the hospital.
- B. Oh, that behavior will stop in a few days.
- C. Keep in mind that for the age this is a normal response to being in the hospital.
- D. You might want to 'sneak out' of the room once the child falls asleep.
Correct answer: C
Rationale: The nurse should reassure the mother that the child's behavior is normal for their age and situation.
4. The nurse is caring for a 17-month-old child with acetaminophen poisoning. Which laboratory reports should the nurse review first?
- A. Prothrombin time (PT) and partial thromboplastin time (PTT)
- B. Red blood cell and white blood cell counts
- C. Blood urea nitrogen and creatinine levels
- D. Liver enzymes (AST and ALT)
Correct answer: D
Rationale: In acetaminophen poisoning, liver damage is a significant concern due to the drug's metabolism in the liver. Monitoring liver enzymes such as AST and ALT is crucial as they indicate liver function and damage. Prothrombin time (PT) and partial thromboplastin time (PTT) (Choice A) are coagulation studies and are not the priority in acetaminophen poisoning. Red blood cell and white blood cell counts (Choice B) are not directly related to acetaminophen poisoning. Blood urea nitrogen and creatinine levels (Choice C) assess kidney function, but liver enzymes are more specific for evaluating liver damage in acetaminophen poisoning.
5. To ensure the safety of a client receiving a continuous intravenous normal saline infusion, how often should the LPN change the administration set?
- A. Every 4 to 8 hours
- B. Every 12 to 24 hours
- C. Every 24 to 48 hours
- D. Every 72 to 96 hours
Correct answer: D
Rationale: The correct answer is to change the administration set every 72 to 96 hours. This practice helps reduce the risk of infection by preventing the build-up of bacteria in the tubing. Changing the set too frequently (choices A, B, and C) may increase the chances of contamination and infection without providing additional benefits. Therefore, the LPN should follow the guideline of changing the administration set every 72 to 96 hours to maintain the client's safety during the continuous intravenous normal saline infusion.
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