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. Following a thyroidectomy, a client experiences tetany. The nurse should expect to administer which intravenous medication?
- A. Sodium iodide solution
- B. Levothyroxine sodium (Synthroid)
- C. Calcium gluconate
- D. Propranolol (Inderal)
Correct answer: C
Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.
3. Four clients arrive on the labor and delivery unit at the same time. Which client should the nurse assess first?
- A. A 38-week primigravida who reports contractions occurring every 10 minutes
- B. A 39-week primigravida with a biophysical profile score of 5 out of 8
- C. A 41-week multigravida who is scheduled for induction of labor today
- D. A 36-week multigravida with a prescription for serial blood pressure
Correct answer: B
Rationale: The correct answer is B. A biophysical profile score of 5 out of 8 indicates potential fetal distress, necessitating immediate assessment to ensure the well-being of the fetus. The other options, while important, do not suggest an immediate threat to the fetus' health. The 38-week primigravida with contractions every 10 minutes may be in early labor, the 41-week multigravida scheduled for induction can be assessed after addressing the immediate concern, and the 36-week multigravida with serial blood pressure can be assessed after ensuring the client with potential fetal distress is stabilized.
4. The nurse should explain to a client with lung cancer that pleurodesis is performed to achieve which expected outcome?
- A. Debulk tumor to maintain patency of air passages
- B. Relieve empyema after pneumonectomy
- C. Prevent the formation of effusion fluid
- D. Remove fluid from the intrapleural space
Correct answer: C
Rationale: The correct answer is C. Pleurodesis is a procedure used to prevent the re-accumulation of pleural effusion by creating adhesion between the pleurae. This helps prevent the formation of effusion fluid. Choices A, B, and D are incorrect because pleurodesis is not performed to debulk tumors, relieve empyema after pneumonectomy, or remove fluid from the intrapleural space. Understanding the purpose of pleurodesis is essential in providing accurate patient education and care.
5. A client with a severe prostatic infection that caused a blocked urethra is 3 days post-surgical urinary diversion. The healthcare provider directs the nurse to remove the suprapubic catheter to allow the client to void normally. Which intervention should the nurse implement first?
- A. Cleanse the site around the catheter
- B. Use a 20 ml syringe to deflate balloon
- C. Clamp catheter until the client voids naturally
- D. Empty urine from the urinary drainage bag
Correct answer: B
Rationale: The correct answer is to use a 20 ml syringe to deflate the balloon first when removing a suprapubic catheter. This step is essential to ensure the safe removal of the catheter without causing any harm or discomfort to the client. Deflating the balloon allows for the catheter to be easily removed. Option A, cleansing the site around the catheter, is not the initial step in this process and can be done after catheter removal. Option C, clamping the catheter until the client voids naturally, is incorrect as it can lead to complications like urinary retention. Option D, emptying urine from the urinary drainage bag, is not the first step in removing the suprapubic catheter and does not address the need to deflate the balloon for safe removal.
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