HESI LPN
Practice HESI Fundamentals Exam
1. The debilitated patient is resisting attempts by the nurse to provide oral hygiene. Which action will the nurse take next?
- A. Insert an oral airway.
- B. Place the patient in a flat, supine position.
- C. Use undiluted hydrogen peroxide as a cleaner.
- D. Quickly proceed without talking to the patient.
Correct answer: A
Rationale: When a debilitated patient resists oral hygiene, the nurse should prioritize safety. Inserting an oral airway helps keep the mouth open, ensuring adequate access for oral care procedures while preventing any accidental biting or closure of the airway. Placing the patient in a flat, supine position may not address the resistance issue and can lead to aspiration risk. Using undiluted hydrogen peroxide is not recommended due to its potential harmful effects on oral tissues. Proceeding quickly without communication can escalate the situation and compromise patient-centered care.
2. During an admission assessment, a healthcare professional finds a client's radial pulse rate to be 68/min and the simultaneous apical pulse to be 84/min. What is the client’s pulse deficit (per minute)?
- A. 16
- B. 12
- C. 6
- D. 14
Correct answer: A
Rationale: The pulse deficit is calculated by finding the difference between the apical and radial pulse rates. In this case, the difference is 84 - 68 = 16. This indicates that there is a pulse deficit of 16 beats per minute. Choices B, C, and D are incorrect as they do not accurately reflect the difference between the two pulse rates.
3. A nurse on the IV team is conducting an in-service education program about the complications of IV therapy. Which of the following statements by an attendee indicates an understanding of the manifestations of infiltration? (Select all that apply.)
- A. “The temperature around the IV site is cooler.”
- B. “The rate of the infusion increases.”
- C. “The skin at the IV site is red.”
- D. “The IV dressing is damp.”
Correct answer: A
Rationale: The correct statement is: 'The temperature around the IV site is cooler.' Cooler temperature around the site is indicative of infiltration, where IV fluid leaks into the surrounding tissue, causing tissue swelling. The other options are incorrect: B) An increase in infusion rate is not a sign of infiltration; instead, it could indicate an issue with the infusion pump or the IV catheter. C) Redness around the IV site is more indicative of infection rather than infiltration. D) A damp IV dressing is more suggestive of a leak in the IV system, not infiltration.
4. 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.
5. A nurse on a medical-surgical unit is caring for a group of clients. For which of the following clients should the nurse expect a prescription for fluid restriction?
- A. A client who has a new diagnosis of adrenal insufficiency
- B. A client who has heart failure
- C. A client who is receiving treatment for diabetic ketoacidosis
- D. A client who has abdominal ascites
Correct answer: B
Rationale: The correct answer is B. Fluid restriction is commonly prescribed for clients with heart failure to prevent fluid overload and exacerbation of heart failure symptoms. Heart failure often leads to fluid retention, and restricting fluid intake can help manage this condition. Adrenal insufficiency, diabetic ketoacidosis, and abdominal ascites do not typically require fluid restriction as a primary intervention. Adrenal insufficiency may require hormone replacement therapy, diabetic ketoacidosis requires fluid and electrolyte replacement, and abdominal ascites may require diuretics or paracentesis to remove excess fluid.
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