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. A client with a BMI of 60.2 kg/m² is admitted to the intensive care unit 3 weeks after gastric bypass with gastric rupture and impending multiple organ dysfunction syndrome (MODS). What should the nurse prepare to implement first?
- A. Mechanical ventilation
- B. Platelet transfusion
- C. Loop diuretic therapy
- D. Cyanocobalamin administration
Correct answer: A
Rationale: In this critical situation with gastric rupture and impending MODS, the priority intervention should be mechanical ventilation. This client is at risk of respiratory compromise due to the severity of the condition. Platelet transfusion (Choice B) is not the priority as there is no indication of significant bleeding. Loop diuretic therapy (Choice C) and cyanocobalamin administration (Choice D) are not the immediate priorities in this scenario and would not address the urgent need for respiratory support.
3. A client is admitted with pyelonephritis, and cultures reveal an Escherichia coli infection. The client is allergic to penicillins, and the healthcare provider prescribed vancomycin IV. The nurse should plan to carefully monitor the client for which finding during IV administration?
- A. Tissue sloughing upon extravasation
- B. Elevated blood pressure and heart rate
- C. Tinnitus and vertigo
- D. Erythema of the face, neck, and chest
Correct answer: C
Rationale: The correct answer is C: Tinnitus and vertigo. Vancomycin can cause ototoxicity and nephrotoxicity, leading to symptoms like tinnitus and vertigo. Monitoring for these adverse effects is crucial to prevent further complications. Choices A, B, and D are incorrect because tissue sloughing, elevated blood pressure and heart rate, and erythema of the face, neck, and chest are not typically associated with vancomycin administration. Therefore, the nurse should focus on monitoring for signs of ototoxicity and nephrotoxicity such as tinnitus and vertigo.
4. The client demonstrates an understanding of sliding scale insulin administration instructions by performing the procedure in which order?
- A. Obtain blood glucose level
- B. Verify the insulin prescription
- C. Draw insulin into insulin syringe
- D. Cleanse the selected site
Correct answer: A
Rationale: The correct order for the client to perform the procedure is to first obtain the blood glucose level. This step is crucial as it helps determine the appropriate dose of insulin based on the sliding scale. Verifying the insulin prescription, drawing insulin into the syringe, and cleansing the selected site are important steps in the process but should follow after obtaining the blood glucose level. Therefore, options B, C, and D are incorrect in terms of the initial steps required for sliding scale insulin administration.
5. The nurse is preparing to administer an oral antibiotic to a client with unilateral weakness, ptosis, mouth drooping, and aspiration pneumonia. What is the priority nursing assessment that should be done before administering this medication?
- A. Ask the client about soft food preferences
- B. Auscultate the client’s breath sounds
- C. Obtain and record the client’s vital signs
- D. Determine which side of the body is weak
Correct answer: B
Rationale: The correct answer is to auscultate the client’s breath sounds. Assessing breath sounds is crucial in this scenario as it helps ensure that the client can safely swallow the oral antibiotic without aspirating. Unilateral weakness, ptosis, mouth drooping, and aspiration pneumonia indicate potential swallowing difficulties, making it essential to assess breath sounds for any signs of respiratory issues. Asking about food preferences (choice A) may be relevant later but is not the priority before administering the medication. While obtaining vital signs (choice C) is important, assessing breath sounds takes precedence in this case. Determining which side of the body is weak (choice D) is not the priority assessment before administering the oral antibiotic.
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