HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
2. A client has been coughing for 3 weeks and is beginning to cough up blood. The client has manifestations of which of the following conditions?
- A. Allergic reaction
- B. Ringworm
- C. Systemic lupus erythematosus
- D. Tuberculosis
Correct answer: D
Rationale: The correct answer is D: Tuberculosis. Coughing up blood (hemoptysis) is a key symptom of tuberculosis. Tuberculosis is a respiratory infection caused by the bacterium Mycobacterium tuberculosis. The other options are incorrect because an allergic reaction typically involves symptoms like itching, hives, or swelling, not coughing up blood. Ringworm is a fungal skin infection characterized by a red, circular rash, and systemic lupus erythematosus is an autoimmune disease that primarily affects joints and skin without causing hemoptysis.
3. UAP has lowered the head of the bed to change the linens for a client who is bedridden. Which observation...most immediate intervention by the nurse?
- A. A feeding is infusing at 40 mL/hr through an enteral feeding tube.
- B. The urine meter attached to the urinary drainage bag is completely full.
- C. There is a large dependent loop in the client's urinary drainage tubing.
- D. Purulent drainage is present around the insertion site of the feeding tube.
Correct answer: D
Rationale: The correct answer is D. Purulent drainage around the insertion site of the feeding tube indicates an infection, which requires immediate attention. This may be a sign of a serious complication that needs prompt nursing intervention to prevent further complications or deterioration in the client's condition. Choices A, B, and C do not indicate an immediate threat to the client's health. While option A highlights the infusion rate of the feeding, it does not pose an immediate risk compared to the presence of purulent drainage indicating infection.
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. The healthcare professional prepares a 1,000 ml IV of 5% dextrose and water to be infused over 8 hours. The infusion set delivers 10 drops per milliliter. The healthcare professional should regulate the IV to administer approximately how many drops per minute?
- A. 80
- B. 8
- C. 21
- D. 25
Correct answer: C
Rationale: To calculate the drops per minute for the IV infusion, first determine the total drops to be infused over 8 hours. 1,000 ml to be infused over 8 hours means 125 ml per hour (1000 ml / 8 hours = 125 ml/hr). Since the infusion set delivers 10 drops per ml, 125 ml/hr x 10 drops/ml = 1250 drops/hr. To find drops per minute, divide the drops per hour by 60 (minutes in an hour): 1250 drops/hr / 60 minutes = 20.83 drops/minute, which rounds up to 21 drops per minute (Option C). This rate ensures the correct infusion rate over 8 hours. Choices A, B, and D are incorrect calculations and do not provide the appropriate infusion rate needed to administer the IV over the specified time period.
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