HESI LPN
CAT Exam Practice
1. When educating a group of school-age children on reducing the risk of Lyme disease, which instruction should the camp nurse include?
- A. Wash hands frequently
- B. Avoid drinking lake water
- C. Wear long sleeves and pants
- D. Do not share personal products
Correct answer: C
Rationale: The correct instruction to reduce the risk of Lyme disease is to wear long sleeves and pants. This helps prevent tick bites, which are the primary mode of transmission for Lyme disease. Wearing protective clothing reduces the skin's exposure to ticks, decreasing the chances of getting bitten. Washing hands frequently (Choice A) is important for general hygiene but not specifically for preventing Lyme disease. Avoiding drinking lake water (Choice B) is unrelated to the prevention of Lyme disease. Not sharing personal products (Choice D) is important for preventing the spread of infections but does not directly reduce the risk of Lyme disease.
2. The nurse is assessing an older adult with type 2 diabetes. Which assessment finding indicates that the client understands long-term control of diabetes?
- A. The fasting blood sugar was 120 mg/dL this morning
- B. Urine ketones have been negative for the past 6 months
- C. The hemoglobin A1C was 6.5% last week
- D. No diabetic ketoacidosis has occurred in 6 months
Correct answer: C
Rationale: An A1C level of 6.5% indicates good long-term control of diabetes as it reflects the average blood sugar levels over the past 2-3 months. Monitoring fasting blood sugar provides immediate information about the current blood sugar level, while the absence of urine ketones indicates short-term control. Although the absence of diabetic ketoacidosis is positive, it doesn't specifically reflect long-term control like the A1C level does.
3. A client diagnosed with a deep vein thrombus (DVT) followed by a diagnosis of pulmonary embolism (PE) is receiving heparin via an infusion pump at a rate of 1400 u/hour. The client tells the nurse, “I wish this medicine would hurry up and dissolve this clot in my lung so that I can go home”. What response is best for the nurse to provide?
- A. Heparin prevents further clot formation, but your risk of bleeding needs to be monitored closely
- B. You seem to be concerned about the length of time it takes for Heparin to dissolve this clot
- C. Let me contact your healthcare provider to discuss the possibility of receiving IV heparin therapy at home
- D. Why are you so anxious to leave the hospital when you know you are not well enough yet?
Correct answer: A
Rationale: The correct response is A: 'Heparin prevents further clot formation, but your risk of bleeding needs to be monitored closely.' Heparin is an anticoagulant that prevents further clot formation, but it does not quickly dissolve existing clots. It is crucial for the nurse to educate the client about the purpose of heparin and the necessity for close monitoring of bleeding risks. Choice B is incorrect as it does not address the misunderstanding about heparin's mechanism of action. Choice C is incorrect as home administration of IV heparin therapy requires careful consideration and should not be suggested without a thorough assessment. Choice D is incorrect as it does not address the client's misconception about heparin's role in dissolving clots and instead focuses on the client's desire to leave the hospital.
4. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
5. When assessing a client with acute asthma, the nurse is most likely to obtain which finding?
- A. Pursed lip breathing and clubbing of fingers
- B. Fever and a high-pitched inspiratory stridor
- C. A short expiratory phase and hemoptysis
- D. Cough and musical breath sounds on expiration
Correct answer: D
Rationale: When assessing a client with acute asthma, a cough and wheezing or musical breath sounds on expiration are typical findings. Pursed lip breathing and clubbing of fingers (choice A) are not common in acute asthma but could be seen in chronic respiratory conditions. Fever and high-pitched inspiratory stridor (choice B) are more indicative of croup or epiglottitis. A short expiratory phase and hemoptysis (choice C) are not typical findings in acute asthma.
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