HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is caring for a client who has pharyngeal diphtheria. Which of the following types of transmission precautions should the healthcare professional initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective
Correct answer: B
Rationale: The correct answer is B: Droplet. Droplet precautions are required for infections that spread via droplets larger than 5 microns in diameter, such as pharyngeal diphtheria. Contact precautions are used for diseases that spread by direct or indirect contact. Airborne precautions are for diseases that spread through small particles in the air. Protective precautions are not a standard precautionary measure for specific infections like pharyngeal diphtheria.
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 client is receiving 0.9% sodium chloride IV at 125 mL/hr. The nurse notes that the client has received only 80 mL over the last 2 hr. Which of the following actions should the nurse take first?
- A. Reposition the client
- B. Document the client's IV intake in the medical record
- C. Request a new IV fluid prescription
- D. Check the IV tubing for obstruction
Correct answer: D
Rationale: The correct answer is to check the IV tubing for obstruction. The first step in the nursing process is assessment. By checking the IV tubing for obstruction, the nurse can assess and potentially correct any issues affecting the flow rate. This action may help to ensure that the prescribed infusion rate is maintained. Repositioning the client is not the priority at this stage as the issue seems related to the IV tubing. Documenting the intake or requesting a new prescription are not immediate actions needed to address the current situation with the IV fluid flow.
4. A nurse is preparing to administer enoxaparin subcutaneously. Which of the following actions should the nurse take?
- A. Administer the medication with the needle at a 45-degree angle.
- B. Administer the medication with the needle at a 90-degree angle.
- C. Administer the medication with the needle at a 30-degree angle.
- D. Administer the medication with the needle at a 15-degree angle.
Correct answer: B
Rationale: Enoxaparin should be administered with the needle at a 90-degree angle to ensure proper subcutaneous delivery. Choice B is correct as it aligns with the recommended angle for subcutaneous injections. Administering enoxaparin at a 45-degree angle (Choice A), 30-degree angle (Choice C), or 15-degree angle (Choice D) would not be appropriate and may lead to improper administration or absorption of the medication.
5. At a mobile screening clinic, a nurse is assessing a client who reports a history of a heart murmur due to aortic stenosis. To auscultate the aortic valve, where should the nurse place the stethoscope?
- A. Second intercostal space to the right of the sternum
- B. Fifth intercostal space to the left of the sternum
- C. Third intercostal space to the left of the sternum
- D. Fourth intercostal space at the midclavicular line
Correct answer: A
Rationale: The correct location to auscultate the aortic valve is the second intercostal space to the right of the sternum. This area corresponds to the aortic valve area where aortic valve sounds are best heard. Choices B, C, and D are incorrect for auscultating the aortic valve. The fifth intercostal space to the left of the sternum is where the mitral valve is best heard, the third intercostal space to the left of the sternum is where the pulmonic valve is best heard, and the fourth intercostal space at the midclavicular line is where the tricuspid valve is best auscultated.
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