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. The mother of a teenager is told that her son has recently been found stealing from other students at school. The mother's response is, 'I cannot think about that today.' The nurse determines that this mother is using which defense mechanism?
- A. Suppression
- B. Repression
- C. Sublimation
- D. Undoing
Correct answer: A
Rationale: The correct answer is A, Suppression. Suppression involves a conscious effort to avoid dealing with distressing thoughts or feelings. In this case, the mother is consciously choosing not to think about her son's behavior. Choice B, Repression, involves unconsciously blocking out distressing thoughts or feelings. Choice C, Sublimation, is the channeling of unacceptable impulses into socially acceptable behaviors, which is not demonstrated in this scenario. Choice D, Undoing, is a defense mechanism where a person tries to undo or reverse a negative thought or action by performing a contrary behavior, which is not applicable here.
3. A 20-year-old male client is diagnosed with Ewing’s sarcoma following an examination for a knee injury. Which instruction is most important for the nurse to provide the client?
- A. Take analgesics regularly to manage pain
- B. Notify the healthcare provider if the swelling worsens
- C. Avoid weight-bearing on the affected knee until the injury heals
- D. Seek treatment for the sarcoma immediately
Correct answer: D
Rationale: The most crucial instruction for the nurse to provide the client is to seek treatment for the sarcoma immediately. Ewing's sarcoma is a type of cancer that necessitates prompt and aggressive treatment for the best possible outcome. While managing pain (Choice A) and monitoring swelling (Choice B) are important, addressing the underlying sarcoma is the priority. Instructing the client to avoid weight-bearing (Choice C) is not directly related to the treatment of Ewing's sarcoma and may not be the most critical instruction at this point.
4. The client demonstrates an understanding of sliding scale insulin administration instructions by performing the procedure in which order?
- A. Obtain blood glucose level
- B. Verify the insulin prescription
- C. Draw insulin into insulin syringe
- D. Cleanse the selected site
Correct answer: A
Rationale: The correct order for the client to perform the procedure is to first obtain the blood glucose level. This step is crucial as it helps determine the appropriate dose of insulin based on the sliding scale. Verifying the insulin prescription, drawing insulin into the syringe, and cleansing the selected site are important steps in the process but should follow after obtaining the blood glucose level. Therefore, options B, C, and D are incorrect in terms of the initial steps required for sliding scale insulin administration.
5. The nurse is assessing a client with pulmonary edema who is reporting two-pillow orthopnea and paroxysmal nocturnal dyspnea. The nurse identifies rapid shallow respirations and the use of accessory muscles. Which action should the nurse include in the client’s plan of care?
- A. Administer the prescribed amiodarone (Cordarone) immediately
- B. Institute a daily fluid restriction while the client is in the hospital
- C. Perform a blood draw for serum Troponin, CK, and CK-MB levels
- D. Place the client in the Trendelenburg position to facilitate perfusion
Correct answer: A
Rationale: Administering amiodarone is appropriate if arrhythmias are present in the context of pulmonary edema, as it helps manage irregular heart rhythms. In this case, the client is experiencing symptoms related to respiratory distress, and amiodarone can address potential arrhythmias contributing to the condition. Options B and D are not directly related to managing symptoms of pulmonary edema and do not address the underlying cause of the client's distress. Option C, performing blood tests for cardiac enzymes, is important for assessing possible myocardial damage but does not directly address the immediate respiratory distress associated with pulmonary edema.
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