HESI LPN
HESI Fundamentals Study Guide
1. A healthcare provider in an office is preparing to auscultate and percuss a client’s thorax as part of a comprehensive physical examination. Which of the following findings should the provider expect?
- A. Rhonchi
- B. Crackles
- C. Resonance
- D. Tactile fremitus
Correct answer: C
Rationale: During a thoracic examination, normal findings should include resonance, which is the expected sound when percussing the thorax. Resonance indicates healthy lung tissue and air-filled spaces. Abnormal findings such as rhonchi and crackles suggest issues like lung congestion or inflammation. Tactile fremitus refers to vibrations felt on the chest wall during palpation and is not typically assessed during percussion and auscultation of the thorax.
2. The healthcare professional is preparing to administer a tuberculin skin test. Which site is most appropriate for this injection?
- A. Deltoid muscle
- B. Vastus lateralis muscle
- C. Abdomen
- D. Inner forearm
Correct answer: D
Rationale: The inner forearm is the most appropriate site for administering a tuberculin skin test. This test requires an intradermal injection, which is administered just below the surface of the skin. The inner forearm provides a flat, easily accessible surface for this type of injection. Choices A, B, and C are incorrect because the tuberculin skin test should not be administered into a muscle (deltoid muscle or vastus lateralis muscle) or into the abdomen. The test requires precise placement within the dermal layer of the skin on the inner forearm to accurately assess for a reaction.
3. A client with chronic kidney disease is being assessed. Which laboratory value would be most concerning?
- A. Serum creatinine of 3.0 mg/dL
- B. Blood urea nitrogen (BUN) of 45 mg/dL
- C. Serum potassium of 6.5 mEq/L
- D. Hemoglobin of 10 g/dL
Correct answer: C
Rationale: In a client with chronic kidney disease, an elevated serum potassium level (hyperkalemia) is the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias due to its effect on the electrical conduction system of the heart. Monitoring and managing serum potassium levels are crucial in patients with chronic kidney disease to prevent serious complications. While elevated serum creatinine (Choice A) and Blood Urea Nitrogen (BUN) levels (Choice B) indicate impaired kidney function, hyperkalemia poses an immediate risk of cardiac complications. Hemoglobin levels (Choice D) are typically lower in chronic kidney disease due to decreased erythropoietin production, but they do not present an immediate life-threatening risk like hyperkalemia.
4. A client has an order for 1000 ml of D5W over an 8-hour period. The nurse discovers that 800 ml has been infused after 4 hours. What is the priority nursing action?
- A. Ask the client if there are any breathing problems
- B. Have the client void as much as possible
- C. Check the vital signs
- D. Auscultate the lungs
Correct answer: D
Rationale: The correct answer is D: Auscultate the lungs. When a significant amount of fluid has been infused, especially in a short period, it is crucial to assess for signs of fluid overload or pulmonary complications, such as crackles or decreased breath sounds. This can be achieved by auscultating the lungs. Choice A, asking the client about breathing problems, may provide valuable information, but direct assessment through auscultation takes priority. Choice B, having the client void, and Choice C, checking vital signs, are important nursing actions but are not as urgent as assessing the lungs for potential complications in this scenario.
5. An assistive personnel (AP) is assisting a nurse with the care of a female client who has an indwelling urinary catheter. Which of the following actions by the AP indicates a need for further teaching?
- A. The AP hangs the collection bag below the level of the bladder.
- B. The AP performs hand hygiene before handling the catheter.
- C. The AP secures the catheter to the client’s leg with tape.
- D. The AP empties the collection bag when it is full.
Correct answer: A
Rationale: Hanging the collection bag below the level of the bladder is the correct technique for maintaining proper drainage and preventing backflow in a client with an indwelling urinary catheter. Therefore, choice A is the correct answer as it indicates a need for further teaching. Choices B, C, and D demonstrate appropriate actions in catheter care. Performing hand hygiene before handling the catheter helps prevent infection, securing the catheter to the client’s leg with tape prevents accidental dislodgement, and emptying the collection bag when it is full ensures that the catheter functions effectively.
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