HESI LPN
HESI Fundamental Practice Exam
1. The healthcare provider is assessing a 17-month-old with acetaminophen poisoning. Which lab reports should the provider 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 potential for hepatotoxicity. Therefore, the healthcare provider should first review liver enzymes such as AST (aspartate aminotransferase) and ALT (alanine aminotransferase) to assess liver function. Prothrombin time and partial thromboplastin time are coagulation studies and are not the priority in acetaminophen poisoning. Red blood cell and white blood cell counts are important in assessing for anemia or infection but are not specific to acetaminophen poisoning. Blood urea nitrogen and creatinine levels primarily assess kidney function, which is not the primary concern in acetaminophen poisoning.
2. After a renal biopsy, a client has returned to the unit. Which of the following nursing interventions is appropriate?
- A. Ambulate the client 4 hours after the procedure
- B. Maintain the client on NPO status for 24 hours
- C. Monitor vital signs
- D. Change the dressing every 8 hours
Correct answer: C
Rationale: Monitoring vital signs is crucial after a renal biopsy to promptly detect any signs of bleeding or complications. Ambulating the client 4 hours after the procedure may increase the risk of bleeding, so it is not appropriate. Maintaining the client on NPO status for 24 hours is not necessary unless specifically ordered by the healthcare provider. Changing the dressing every 8 hours is not typically indicated unless there is a specific concern or order to do so.
3. A nurse is planning care for a client who reports abdominal pain. An assessment by the nurse reveals the client has a temperature of 39.2°C (102°F), heart rate of 105/min, a soft tender abdomen, and menses overdue by 2 days. Which of the following findings should be the nurse’s priority?
- A. Temperature
- B. Menses overdue
- C. Soft tender abdomen
- D. Heart rate
Correct answer: A
Rationale: The correct answer is A: Temperature. A high temperature of 39.2°C (102°F) indicates a fever, which can be a sign of infection or another serious condition. Investigating the cause of the fever is a priority to address any underlying health issue promptly. Menses overdue (choice B) could be relevant but is not as urgent as addressing a fever. A soft tender abdomen (choice C) is important but may be a consequence of the underlying condition causing the fever. Heart rate (choice D) is also significant, but the priority here is to identify the cause of the fever.
4. The healthcare provider is preparing to administer a subcutaneous injection of heparin. Which site is most appropriate for the healthcare provider to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Abdomen
- D. Dorsogluteal site
Correct answer: C
Rationale: The abdomen is the most appropriate site for administering subcutaneous heparin injections. The abdomen has a layer of subcutaneous fat and a good blood supply, making it an ideal site for subcutaneous injections. Using the deltoid muscle for heparin injections is not appropriate as it is typically used for intramuscular injections. The ventrogluteal site is more suitable for intramuscular injections rather than subcutaneous injections. The dorsogluteal site is no longer recommended for injections due to the risk of injury to the sciatic nerve.
5. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
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