HESI LPN
HESI CAT Exam
1. Which techniques should be used to administer an intradermal (ID) injection for a Mantoux test to screen for tuberculosis (TB)? Select all that apply.
- A. Observe for an intradermal bleed after the antigen is injected
- B. Select an ID site using the volar surface of the forearm
- C. Use a 26 or 27-gauge needle with a length of 1/4 to 5/8 inches on a 1 ml calibrated syringe
- D. Ensure that the needle is inserted into the skin with the bevel up
Correct answer: A
Rationale: Observing for an intradermal bleed after the antigen is injected is a proper technique for an ID injection. This is important to confirm the correct placement of the injection. Choice B is correct because the recommended site for an ID injection for a Mantoux test is the volar surface of the forearm. Choice C is incorrect because the standard needle size for an ID injection is usually 26 or 27 gauge with a length of 1/4 to 5/8 inches, not 25 gauge with a length of 1/2 inch. Choice D is incorrect because the needle should be inserted into the skin with the bevel facing up, not down.
2. An older client comes to the clinic with a family member. When the nurse attempts to take the client’s health history, the client does not respond to questions clearly. What action should the nurse implement first?
- A. Assess the surroundings for noise and distractions
- B. Provide a printed health history form
- C. Defer the health history until the client is less anxious
- D. Ask the family member to answer the questions
Correct answer: A
Rationale: The correct action for the nurse to implement first is to assess the surroundings for noise and distractions. This step is crucial as environmental factors can affect the client's ability to respond clearly. By minimizing noise and distractions, the nurse can create a more conducive environment for effective communication. Providing a printed form (Choice B) may help but addressing environmental factors should come first. Deferring the health history (Choice C) or asking the family member to answer the questions (Choice D) should not be the initial steps, as they do not directly address the issue of unclear communication with the client.
3. A client with a history of myocardial infarction (MI) is receiving a beta-blocker medication. What is the most important outcome for the nurse to monitor?
- A. Heart rate and blood pressure
- B. Blood glucose levels
- C. Respiratory rate
- D. Liver function tests
Correct answer: A
Rationale: The correct answer is A: Heart rate and blood pressure. When a client with a history of myocardial infarction (MI) is on a beta-blocker medication, monitoring heart rate and blood pressure is crucial. Beta-blockers lower heart rate and blood pressure, so monitoring these parameters helps assess the medication's effectiveness and prevent complications like bradycardia or hypotension. Choices B, C, and D are not the most important outcomes to monitor in this scenario. Blood glucose levels are typically monitored in clients with diabetes or when using medications that affect glucose levels. Respiratory rate is important in assessing respiratory function and oxygenation, while liver function tests are more relevant when monitoring the impact of medications on liver health.
4. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
5. 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.
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