HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. The nurse discontinues a continuous IV heparin infusion for a male client on strict bedrest and is now preparing to administer the client's first dose of enoxaparin. Prior to giving this subcutaneous injection, which assessment finding requires additional intervention by the nurse?
- A. Current lab report indicates an Aptt at 1.5 times the client's control
- B. The client states that his right calf is aching and wants pain medication
- C. The spouse is assisting the client who is shaving with an electric razor
- D. Several bruised areas are noted on the client's upper extremities bilaterally
Correct answer: D
Rationale: The correct answer is D. Bruised areas on the client's upper extremities bilaterally indicate an increased risk of bleeding, which requires careful assessment before administering enoxaparin. Bruising suggests potential issues with clotting and hemostasis, making it crucial for the nurse to further evaluate the client's bleeding risk. Choices A, B, and C do not directly relate to the assessment of bleeding risk associated with enoxaparin administration and are therefore incorrect. Choice A provides information about the client's Aptt, which is not directly relevant to assessing bleeding risk for enoxaparin. Choice B addresses pain management, and Choice C involves the client's daily activities with no direct link to the bleeding risk assessment.
3. A male client with hypertension, who received new antihypertensive prescriptions at his last visit returns to the clinic two weeks later to evaluate his blood pressure (BP). His BP is 158/106 mmHg and he admits that he has not been taking the prescribed medication because the drugs make him feel bad. In explaining the need for hypertension control, the nurse should stress that an elevated BP places the client at risk for which pathophysiological condition?
- A. Stroke secondary to hemorrhage
- B. Acute kidney injury due to glomerular damage
- C. Heart block due to myocardial damage
- D. Blindness secondary to cataracts
Correct answer: A
Rationale: The correct answer is A: Stroke secondary to hemorrhage. Hypertension increases the risk of stroke due to the stress and damage it causes to blood vessels, which can lead to hemorrhage. Choice B is incorrect because acute kidney injury is more commonly associated with chronic uncontrolled hypertension, not acute elevations. Choice C is incorrect as heart block is not a direct consequence of hypertension. Choice D is incorrect as hypertension does not directly cause cataracts leading to blindness.
4. A postoperative client returns to the nursing unit following a ureterolithotomy via a flank incision. Which potential nursing problem has the highest priority when planning nursing care for this client?
- A. Ineffective airway clearance
- B. Altered nutrition less than body requirements
- C. Fluid volume excess
- D. Activity intolerance
Correct answer: A
Rationale: In this scenario, the highest priority nursing problem for the postoperative client following a ureterolithotomy via a flank incision is ineffective airway clearance. After surgery, there is a risk of airway obstruction due to factors like anesthesia, positioning during surgery, or the presence of secretions. Maintaining a clear airway is crucial to prevent respiratory complications, such as atelectasis or pneumonia. Altered nutrition, fluid volume excess, and activity intolerance are important considerations but are secondary to the immediate threat of compromised airway clearance in the postoperative period.
5. The client is assessing a client who was recently diagnosed with heart failure and is on a low-sodium diet. Which statement by the client indicates a need for further teaching?
- A. “I will use lemon juice and herbs for flavoring.â€
- B. “I will not eat canned soups or frozen dinners.â€
- C. “I can have salt substitutes to enhance the taste of my food.â€
- D. “I will check the food labels for sodium content before buying.â€
Correct answer: C
Rationale: The correct answer is C. Some salt substitutes can be high in potassium, which may not be suitable for clients with heart failure. Option A is correct as using lemon juice and herbs for flavoring is a good low-sodium alternative. Option B is also correct as canned soups and frozen dinners are typically high in sodium content. Option D is correct as checking food labels for sodium content is an essential part of managing a low-sodium diet. Therefore, the client's statement about using salt substitutes needs correction as it can introduce high levels of potassium, which may not be recommended for individuals with heart failure.
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