HESI LPN
HESI Fundamentals Exam
1. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
2. The healthcare provider is assessing a client with a diagnosis of asthma. Which assessment finding would be most concerning?
- A. Wheezing
- B. Shortness of breath
- C. Use of accessory muscles
- D. Cough with sputum production
Correct answer: C
Rationale: The most concerning assessment finding in a client with asthma is the use of accessory muscles. This indicates that the client is working harder to breathe, which could signify respiratory distress. Wheezing, choice A, is a common finding in asthma and indicates narrowed airways but may not necessarily imply immediate distress. Shortness of breath, choice B, is also common in asthma but may not be as concerning as the use of accessory muscles. Cough with sputum production, choice D, can occur in asthma exacerbations but may not be as critical as signs of increased work of breathing like the use of accessory muscles.
3. The nurse notices that the mother of a 9-year-old Vietnamese child always looks at the floor when she talks to the nurse. What action should the LPN take?
- A. Directly address the child instead of the mother.
- B. Continue asking the mother questions about the child.
- C. Request another nurse to interview the mother now.
- D. Politely ask the mother to look at you when answering.
Correct answer: B
Rationale: In this scenario, the LPN should continue asking the mother questions about the child. The mother's behavior of looking at the floor may be a cultural practice, such as avoiding direct eye contact, which should be respected. By maintaining the conversation with the mother, the nurse acknowledges and respects her communication style, fostering trust and open dialogue. Option A is not the best choice as it may disregard the cultural context and the importance of the mother's input. Option C is unnecessary as the LPN can effectively handle the situation. Option D could be perceived as insensitive and may disrupt the rapport between the nurse and the mother.
4. A healthcare professional is preparing to administer medications to a client. Which of the following client identifiers should the healthcare professional use to ensure medication safety?
- A. Ask the client to state their full name.
- B. Ask the client for their date of birth.
- C. Compare the client's wristband with the medication administration record.
- D. Ask the client for their room number.
Correct answer: C
Rationale: Comparing the client's wristband with the medication administration record is a crucial step in ensuring medication safety. The wristband typically contains unique identifiers such as the client's name, date of birth, and medical record number, which should be cross-checked with the medication administration record to confirm the correct patient. Asking the client to state their name (Choice A) or date of birth (Choice B) may not be as reliable as the information can be misunderstood or miscommunicated. Asking for the room number (Choice D) is not a reliable client identifier for medication administration and does not confirm the patient's identity accurately.
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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