HESI LPN
HESI Fundamentals Exam
1. 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.
2. 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.
3. A nurse is caring for a client who has herpes zoster. The client asks about complementary and alternative therapies for pain control. The nurse should inform the client that this condition is a contraindication for which of the following therapies?
- A. Acupuncture
- B. Massage therapy
- C. Aromatherapy
- D. Herbal supplements
Correct answer: A
Rationale: The correct answer is A, Acupuncture. Acupuncture is contraindicated for clients with herpes zoster due to the risk of infection at the needle sites. In individuals with herpes zoster, the skin's integrity is compromised, increasing susceptibility to infections. Therefore, acupuncture, which involves inserting needles into the skin, can introduce pathogens and lead to local infections. Massage therapy (B), aromatherapy (C), and herbal supplements (D) do not involve skin penetration like acupuncture and are generally considered safe complementary therapies for pain control in clients with herpes zoster.
4. A client reports insomnia. Which of the following actions should the nurse perform shortly before bedtime?
- A. Provide a late supper
- B. Offer a wet washcloth for the client to wash their face
- C. Perform range of motion exercises
- D. Prepare a hot cocoa or tea for the client
Correct answer: B
Rationale: Offering a wet washcloth for the client to wash their face is a soothing and calming activity that can help the client relax before bedtime, promoting better sleep. Providing a late supper can lead to indigestion and disrupt sleep. Performing range of motion exercises may increase alertness rather than promoting relaxation. Preparing a hot cocoa or tea containing caffeine close to bedtime can interfere with falling asleep.
5. During an abdominal examination, a nurse in a provider’s office determines that a client has abdominal distention. The protrusion is at midline, the skin over the area is taut, and the nurse notes no involvement of the flanks. Which of the following possible causes of distention should the nurse suspect?
- A. Fat
- B. Fluid
- C. Flatus
- D. Hernias
Correct answer: D
Rationale: The correct answer is 'Hernias.' Abdominal distention with a midline protrusion, taut skin, and no involvement of the flanks is characteristic of hernias. Hernias are caused by a weakness in the abdominal wall, allowing organs or tissues to protrude through. Fluid accumulation (ascites) typically presents with a more generalized distention, while fat accumulation may cause more diffuse distension rather than a focal midline protrusion. Flatus, or gas, would not typically present with a visible midline protrusion and taut skin like hernias.
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