HESI LPN
HESI Fundamental Practice Exam
1. A client with a diagnosis of deep vein thrombosis (DVT) is receiving anticoagulation therapy. Which of the following laboratory values would be most concerning?
- A. INR of 1.5
- B. Platelet count of 200,000/mm³
- C. Hemoglobin of 12 g/dL
- D. aPTT of 70 seconds
Correct answer: A
Rationale: An INR of 1.5 is below the therapeutic range for clients on anticoagulation therapy, increasing the risk of clot formation. A lower INR indicates inadequate anticoagulation, which can lead to thrombus formation and potential complications such as progression or recurrence of deep vein thrombosis. Platelet count, hemoglobin level, and aPTT are important parameters to monitor in a client with DVT. However, in this scenario, the most concerning value is the suboptimal INR level because it signifies a lack of anticoagulation effectiveness and poses a higher risk of clotting issues.
2. 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.
3. In a mass casualty scenario at a child day care center, which child would the triage nurse prioritize for treatment last?
- A. An infant with intermittent bulging anterior fontanel between crying episodes
- B. A toddler with severe deep abrasions covering over 98% of the body
- C. A preschooler with 1 lower leg fracture and the other leg with an upper leg fracture
- D. A school-age child with singed eyebrows and hair on the arms
Correct answer: B
Rationale: In a mass casualty scenario, the triage nurse would prioritize the toddler with severe deep abrasions covering over 98% of the body for treatment last. This child is categorized as 'expectant' due to the extensive injuries, which are unlikely to be survivable even with immediate treatment. The other choices describe injuries that are serious but have a higher likelihood of survival with appropriate and timely intervention. The infant with an intermittent bulging anterior fontanel may have increased intracranial pressure requiring urgent evaluation, the preschooler with leg fractures can be stabilized and treated effectively, and the school-age child with singed hair likely has superficial burns which can be managed promptly.
4. The healthcare provider is caring for a client with a history of atrial fibrillation. Which assessment finding would be most concerning?
- A. Blood pressure of 150/90 mmHg
- B. Irregular heart rhythm
- C. Shortness of breath
- D. Fatigue
Correct answer: C
Rationale: Shortness of breath is the most concerning assessment finding in a client with a history of atrial fibrillation. It can indicate a worsening of the condition, pulmonary edema, or the development of a complication such as heart failure. A blood pressure of 150/90 mmHg, while elevated, is not as immediately concerning as respiratory distress in this context. An irregular heart rhythm is expected in atrial fibrillation and may not necessarily be a new or concerning finding. Fatigue is a common symptom in atrial fibrillation but is not as acutely concerning as shortness of breath, which may indicate compromised oxygenation and circulation.
5. A client with hypertension is prescribed a low-sodium diet. Which food should the LPN/LVN recommend the client avoid?
- A. Fresh fruits
- B. Grilled chicken
- C. Whole grain bread
- D. Canned soup
Correct answer: D
Rationale: The correct answer is D, canned soup. Canned soup is often high in sodium, which contradicts the low-sodium diet prescribed for hypertension. Fresh fruits (A) are generally low in sodium and are a healthy choice. Grilled chicken (B) is a lean protein option that is suitable for a low-sodium diet. Whole grain bread (C) is also a good choice as it is not typically high in sodium. Therefore, the LPN/LVN should recommend avoiding canned soup to adhere to the low-sodium dietary restrictions.
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