HESI LPN
CAT Exam Practice
1. In what order should the nurse assess a lethargic one-hour-old infant brought to the nursery?
- A. Heel stick
- B. Respirations
- C. Heart rate
- D. Temperature
Correct answer: D
Rationale: When assessing a lethargic one-hour-old infant, the nurse should prioritize assessing the most critical parameters first. Temperature and heart rate are vital signs that provide immediate information about the infant's well-being. Therefore, the correct order of assessment should be temperature, heart rate, respirations, and then a heel stick. Temperature is crucial to determine if the infant is hypothermic or hyperthermic, while heart rate gives insight into the circulatory system's function. Respirations follow to evaluate the infant's breathing pattern. Lastly, the heel stick is important for certain screenings but is not as urgent as evaluating temperature and heart rate in a lethargic infant.
2. The nurse is obtaining the medical histories of new clients at a community-based primary care clinic. Which individual has the highest risk for experiencing elder abuse?
- A. A 69-year-old widowed female who lives alone and volunteers at a school
- B. A 95-year-old ambulatory male who resides in a nursing home in a small town
- C. A 78-year-old female on a fixed income who lives with her relatives
- D. An 81-year-old male with diabetes who lives with his wife of 52 years
Correct answer: C
Rationale: Elder abuse risk is higher in individuals who live with relatives and are on a fixed income as these factors can contribute to vulnerability. Living with relatives may expose the individual to potential abusive situations within the family dynamics. Additionally, being on a fixed income may limit financial independence and increase dependency on others, potentially leading to financial abuse. The other options, such as living alone and volunteering, residing in a nursing home, or living with a long-term spouse, do not inherently pose the same level of risk factors for elder abuse as living with relatives on a fixed income.
3. A client morning assessment includes bounding peripheral pulses, weight gain of 2 pounds, pitting ankle edema, and moist crackles bilaterally. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Restrict daily fluid intake to 1500 ml
- B. Weight the client every morning
- C. Maintain accurate intake and output
- D. Administer prescribed diuretic
Correct answer: D
Rationale: Administering a prescribed diuretic is the most important intervention in this scenario as the client is presenting signs of fluid overload and heart failure. Diuretics help reduce fluid retention in the body, alleviating symptoms like edema and crackles. Restricting fluid intake may be necessary in some cases, but in this acute situation, addressing the immediate fluid overload with a diuretic takes precedence. Weighing the client daily and maintaining accurate intake and output are important aspects of monitoring, but they do not directly address the urgent need to manage fluid overload.
4. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: D
Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.
5. The nurse is planning to assess a client's oxygen saturation to determine if additional oxygen is needed via nasal cannula. The client has bilateral below-the-knee amputations and weak, thread pedal pulses. What action should the nurse take?
- A. Document that an accurate oxygen saturation reading cannot be obtained
- B. Elevate the client's hands for five minutes prior to obtaining a reading from the finger
- C. Increase the oxygen based on the client's breathing patterns and lung sounds
- D. Place the oximeter clip on the earlobe to obtain the oxygen saturation reading
Correct answer: D
Rationale: Placing the oximeter clip on the earlobe is appropriate for clients with poor peripheral circulation, such as those with weak and thread pedal pulses due to bilateral below-the-knee amputations. This placement can provide a more accurate reading of oxygen saturation in such clients. Choice A is incorrect because alternative methods, such as earlobe placement, can be used to obtain accurate readings. Choice B is unnecessary and not related to obtaining an accurate oxygen saturation reading. Choice C is incorrect because increasing oxygen without assessing the oxygen saturation level first can be detrimental and is not based on evidence-based practice.
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