HESI LPN
HESI Fundamentals Study Guide
1. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
2. During an eye irrigation for a client exposed to smoke and ash, which nursing action should receive the highest priority?
- A. Wearing gloves during the procedure
- B. Using a sterile solution
- C. Irrigating from the inner to the outer canthus
- D. Positioning the client's head properly
Correct answer: A
Rationale: The highest priority during an eye irrigation for a client exposed to smoke and ash is wearing gloves during the procedure. This action is crucial as it helps prevent contamination and protects both the client and the nurse. Using a sterile solution is important but not as critical as ensuring the nurse's safety by wearing gloves. Irrigating from the inner to the outer canthus and positioning the client's head properly are essential steps in eye irrigation, but they are not the highest priority in this scenario compared to ensuring infection control by wearing gloves.
3. 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.
4. A client with heart failure is being taught by a nurse on reducing daily sodium intake. Which factor is most crucial in determining the client’s ability to learn new dietary habits?
- A. The client's involvement in planning the change
- B. The cost of the dietary changes
- C. The availability of low-sodium foods
- D. The client’s previous dietary knowledge
Correct answer: D
Rationale: The client’s previous dietary knowledge is the most critical factor in determining the ability to learn new dietary habits. Understanding the client's existing dietary knowledge helps tailor the teaching to build upon what they already know. While client involvement in planning changes can increase adherence and motivation, the foundational knowledge is essential for effective learning. The cost of dietary changes and the availability of low-sodium foods are important considerations but not as crucial as the client's existing knowledge.
5. 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.
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