HESI LPN
HESI Fundamentals Study Guide
1. A nurse in an emergency department is assessing a client who reports diarrhea and decreased urination for 4 days. Which of the following actions should the nurse take to assess the client's skin turgor?
- A. Grasp a skin fold on the chest under the clavicle, release it, and note whether it springs back
- B. Pinch the skin on the back of the hand and observe for elasticity
- C. Assess the skin turgor on the abdomen by pinching the skin
- D. Check the skin turgor by pressing on the forearm and observing the rebound
Correct answer: A
Rationale: To assess skin turgor, the nurse should grasp a skin fold on the chest under the clavicle, release it, and note whether it springs back. This method is preferred for older adults and in cases of significant fluid imbalance. Option B is incorrect as assessing skin turgor on the back of the hand is not the standard assessment site for skin turgor. Option C is incorrect as the abdomen is not the typical area for assessing skin turgor; the chest under the clavicle is a more accurate site. Option D is incorrect as pressing on the forearm is not the appropriate site for evaluating skin turgor; the chest under the clavicle is the recommended location for this assessment.
2. The nurse is caring for an older adult patient with a diagnosis of urinary tract infection (UTI). Upon assessment, the nurse finds the patient confused and agitated. How will the nurse interpret these assessment findings?
- A. These are normal signs of aging.
- B. These are early signs of dementia.
- C. These are purely psychological in origin.
- D. These are common manifestations with UTIs.
Correct answer: D
Rationale: The nurse should interpret confusion and agitation in an older adult patient with a UTI as common manifestations of the infection. In older patients, confusion is a primary symptom of a compromised state due to an acute urinary tract infection or fever. Choice A is incorrect as confusion and agitation are not normal signs of aging. Choice B is incorrect because these symptoms are more likely related to the UTI rather than early signs of dementia. Choice C is incorrect as confusion and agitation in this context are not purely psychological but are likely physiological responses to the UTI.
3. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?
- A. 8 mL/hr
- B. 10 mL/hr
- C. 12 mL/hr
- D. 15 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.
4. A healthcare professional is preparing to administer an intramuscular injection to a client. Which site is most appropriate for the healthcare professional to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Dorsogluteal site
- D. Rectus femoris site
Correct answer: B
Rationale: The ventrogluteal site is the most appropriate site for administering an intramuscular injection to an adult client. This site is preferred due to its large muscle mass and distance from major nerves and blood vessels, reducing the risk of injury or complications. The deltoid muscle, while commonly used for vaccinations, may not be suitable for certain medications due to its smaller muscle mass. The dorsogluteal site is no longer recommended due to the proximity of the sciatic nerve, which can lead to complications. The rectus femoris site is not commonly used for intramuscular injections in clinical practice.
5. A healthcare provider is caring for several clients who are receiving oxygen therapy. Which client should the provider assess most frequently for manifestations of oxygen toxicity?
- A. 100% oxygen via partial rebreathing mask
- B. 2 liters per minute via nasal cannula
- C. 4 liters per minute via simple mask
- D. 6 liters per minute via face mask
Correct answer: A
Rationale: When a client is receiving 100% oxygen via a partial rebreathing mask, there is a higher risk for oxygen toxicity due to the higher concentration of oxygen delivered. This client should be assessed most frequently for manifestations of oxygen toxicity. Choices B, C, and D are less likely to result in oxygen toxicity compared to 100% oxygen delivery via a partial rebreathing mask.
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