HESI LPN
CAT Exam Practice Test
1. An adult suffered burns to the face and chest resulting from a grease fire. On admission, the client was intubated, and a 2-liter bolus of normal saline was administered IV. Currently, the normal saline is infusing at 250 ml/hour. The client’s heart rate is 120 beats/minute, blood pressure is 90/50 mmHg, respirations are 12 breaths/minute over the ventilated 12 breaths for a total of 24 breaths/minute, and the central venous pressure (CVP) is 4 mm H2O. Which intervention should the nurse implement?
- A. Increase the rate of normal saline infusion
- B. Infuse an additional bolus of normal saline
- C. Lower the head of the bed to a recumbent position
- D. Bring a tracheostomy tray to the bedside
Correct answer: B
Rationale: The correct intervention is to infuse an additional bolus of normal saline. The client's presentation with a heart rate of 120 beats/minute, hypotensive blood pressure of 90/50 mmHg, and low CVP of 4 mm H2O indicates hypovolemic shock. Administering more normal saline can help in restoring intravascular volume and improving perfusion. Increasing the rate of normal saline infusion (Choice A) is not the best choice as it may lead to fluid overload. Lowering the head of the bed to a recumbent position (Choice C) could worsen hypotension by reducing venous return. Bringing a tracheostomy tray to the bedside (Choice D) is not a priority at this time as the client is already intubated, and the immediate concern is addressing the hypovolemia.
2. A school nurse is called to the soccer field because a child has a nosebleed (epistaxis). In what position should the nurse place the child?
- A. Sitting up and leaning forward
- B. Reclining with head elevated
- C. Sitting up with head tilted back
- D. Lying flat on the back
Correct answer: A
Rationale: The correct position for a child with a nosebleed (epistaxis) is sitting up and leaning forward. This position helps prevent blood from flowing into the throat and causing choking. Choice B, reclining with the head elevated, and choice D, lying flat on the back, are incorrect as they can cause blood to flow backward into the throat. Choice C, sitting up with the head tilted back, is also incorrect as it can lead to blood flowing down the back of the throat and potentially into the airway.
3. The nurse is conducting intake interviews of children at a city clinic. Which child is most susceptible to contracting lead poisoning?
- A. An adolescent who works part-time in a paint factory
- B. A 2-year-old who plays on aging outdoor playground equipment
- C. A 10-year-old who has Type 1 diabetes mellitus
- D. An 8-year-old who lives in a housing project
Correct answer: B
Rationale: Children playing on aging playground equipment are at higher risk of lead poisoning due to potential exposure from old paint. This is because deteriorating paint on older playground equipment may contain lead, which can be ingested by young children. Choices A, C, and D do not directly involve potential exposure to lead paint, making them less susceptible to lead poisoning compared to a child playing on aging playground equipment.
4. When gathering subjective data from a client, what intervention should the nurse implement first?
- A. Listen attentively
- B. Establish rapport
- C. List problems
- D. Clarify inferences
Correct answer: B
Rationale: Establishing rapport is the initial step the nurse should take when gathering subjective data from a client. Building trust and a good relationship with the client creates an environment where the client feels comfortable sharing accurate and honest information. Listening attentively is important but should come after rapport is established to enhance active listening. Listing problems and clarifying inferences are actions that occur later in the assessment process, after the nurse has established a good rapport and obtained a comprehensive understanding of the client's perspective. Therefore, option B is the correct answer.
5. A client prescribed warfarin is being taught about dietary modifications by a nurse. Which statement by the client indicates understanding of the teaching?
- A. ''I need to avoid foods high in vitamin C.''
- B. ''I should eat a consistent amount of vitamin K each day.''
- C. ''I can eat as many leafy greens as I want.''
- D. ''I should not worry about any changes in my diet.''
Correct answer: B
Rationale: The correct answer is B. Consistency in vitamin K intake is crucial for clients on warfarin to maintain stable anticoagulation levels. Option A is incorrect as vitamin C does not directly interact with warfarin. Option C is incorrect because although leafy greens are high in vitamin K, excessive consumption can affect warfarin's effectiveness. Option D is incorrect as any changes in diet, particularly in vitamin K intake, can impact the efficacy of warfarin.
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