HESI LPN
HESI CAT Exam Quizlet
1. A client receives a prescription for acetylcysteine (Mucomyst) 1.4 grams per nasogastric tube q4 hours. Acetylcysteine is available as a 10% solution (10 grams/100ml). How many ml of the 10% solution should the nurse administer per dose?
- A. 7
- B. 10
- C. 14
- D. 1.4 grams of acetylcysteine is equivalent to 14 ml of a 10% solution.
Correct answer: D
Rationale: To determine the amount of the 10% acetylcysteine solution to administer, convert the 1.4 grams to milligrams (1.4 grams = 1400 mg). Then, as the 10% solution contains 10 grams (10,000 mg) per 100 ml, it means there are 1000 mg of acetylcysteine in every 10 ml of the solution (10,000 mg / 100 ml = 100 mg/ml). Therefore, to administer 1400 mg (1.4 grams) of acetylcysteine, the nurse should give 14 ml of the 10% solution. Choices A, B, and C are incorrect as they do not accurately convert the amount of acetylcysteine to the corresponding volume of the 10% solution.
2. The nurse is making assignments for a new graduate from a practical nursing program who is orienting to the unit. Because the unit is particularly busy this day, there will be little time to provide supervision of this new employee. Which client is the best for the nurse to assign this newly graduate practical nurse? A client
- A. Whose discharge has been delayed because of a postoperative infection
- B. With poorly controlled type 2 diabetes who is on a sliding scale for insulin administration
- C. Newly admitted with a head injury who requires frequent assessments
- D. Who is receiving IV heparin that is regulated based on protocol
Correct answer: A
Rationale: The correct answer is option A because this client is the most stable and requires less supervision. Assigning a client whose discharge has been delayed due to a postoperative infection to the newly graduate practical nurse would be appropriate during a busy day as they are likely to need routine care and monitoring rather than immediate intensive interventions. Option B involves a client with poorly controlled type 2 diabetes on a sliding scale for insulin administration, which requires close monitoring and prompt intervention, making it a less suitable assignment for a new graduate who may need more guidance. Option C, a newly admitted patient with a head injury requiring frequent assessments, would demand a higher level of vigilance and expertise, which may be challenging for a new graduate nurse to handle without adequate supervision. Option D, a patient receiving IV heparin regulated based on protocol, involves complex medication management that may be too advanced for a new graduate nurse without sufficient oversight.
3. A nurse working on an endocrine unit should see which client first?
- A. An adolescent male with diabetes who is arguing about his insulin dose.
- B. An older client with Addison’s disease whose current blood sugar level is 62mg/dl (3.44 mmol/l).
- C. An adult with a blood sugar of 384mg/dl (21.31mmol/l) and urine output of 350 ml in the last hour.
- D. A client taking corticosteroids who has become disoriented in the last two hours.
Correct answer: B
Rationale: The correct answer is B. The client with Addison’s disease and a blood sugar level of 62mg/dl (3.44 mmol/l) is experiencing hypoglycemia, which can progress to adrenal crisis. This situation requires immediate attention to prevent further complications. Choices A, C, and D, although concerning, do not pose an immediate life-threatening risk compared to the client with Addison’s disease and hypoglycemia. The adolescent arguing about his insulin dose can be addressed after stabilizing the client with Addison’s disease. The adult with high blood sugar and increased urine output may have hyperglycemia but is not in immediate danger. The client taking corticosteroids who is disoriented needs evaluation but is not in an acute life-threatening condition as the client with hypoglycemia.
4. An older male client with a history of type 1 diabetes has not felt well for the past few days and arrives at the clinic with abdominal cramping and vomiting. He is lethargic, moderately confused, and cannot remember when he took his last dose of insulin or ate last. What action should the nurse implement first?
- A. obtain a serum potassium level
- B. administer the client's usual dose of insulin
- C. assess pupillary response to light
- D. Start an intravenous (IV) infusion of normal saline
Correct answer: D
Rationale: Administering IV fluids is crucial to address potential dehydration and electrolyte imbalances, especially if the client is unable to provide a clear history. Starting an IV infusion of normal saline will help rehydrate the client and address any electrolyte imbalances, which are common in clients with diabetes experiencing symptoms like abdominal cramping and vomiting. Obtaining a serum potassium level can be important but is not the priority when the client is showing signs of dehydration and confusion. Administering insulin should only be done after addressing hydration and electrolyte status. Assessing pupillary response to light is not the most critical action in this situation compared to addressing dehydration and potential electrolyte imbalances.
5. An 18-year-old gravida 1, at 41-weeks gestation, is undergoing an oxytocin (Pitocin) induction and has an epidural catheter in place for pain control. With each of the last three contractions, the nurse notes a late deceleration. The client is repositioned, and oxygen provided, but the late decelerations continue to occur with each contraction. What action should the nurse take first?
- A. Prepare for immediate cesarean birth
- B. Turn off the oxytocin (Pitocin) infusion
- C. Notify the anesthesiologist that the epidural infusion needs to be disconnected
- D. Apply an internal fetal monitoring device and continue to monitor carefully
Correct answer: B
Rationale: In the scenario described, the nurse notes late decelerations during contractions despite repositioning and oxygen administration. Late decelerations are often associated with uteroplacental insufficiency, which can be exacerbated by increased uterine activity stimulated by oxytocin. The initial action to manage late decelerations is to turn off the oxytocin infusion to reduce uterine stimulation. This step aims to improve fetal oxygenation and prevent further stress on the fetus. Immediate cesarean birth may be necessary if the late decelerations persist or worsen despite discontinuing the oxytocin infusion. Notifying the anesthesiologist to disconnect the epidural infusion or applying an internal fetal monitoring device are not the first-line interventions for managing late decelerations.
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