HESI LPN
CAT Exam Practice Test
1. An infant is receiving penicillin G procaine 220,000 units IM. The drug is supplied as 600,000 units/ml. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth)
- A. 0.4
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose (220,000 units) / Dose on hand (600,000 units) x Volume of the available dose (1 ml). This results in 0.4 ml to be administered. Choice A is correct. Choice B, C, and D are incorrect as they are not provided.
2. A male client with schizophrenia is jerking his neck and smacking his lips. Which finding indicates to the nurse that he is experiencing an irreversible side effect of antipsychotic agents?
- A. Cramping muscular pain
- B. Worming movements of the tongue
- C. Decreased tendon reflexes
- D. Dry oral mucous membranes
Correct answer: B
Rationale: The correct answer is B: Worming movements of the tongue. Worming movements of the tongue, known as tardive dyskinesia, are an irreversible side effect of antipsychotic medications. Tardive dyskinesia is characterized by involuntary, repetitive movements of the tongue, lips, face, trunk, and extremities. Cramping muscular pain (Choice A) is more indicative of dystonia, an extrapyramidal side effect that can be treated effectively with antiparkinsonian medications. Decreased tendon reflexes (Choice C) are not typically associated with irreversible side effects of antipsychotic agents. Dry oral mucous membranes (Choice D) are not specific to irreversible side effects of antipsychotic medications.
3. The mother of a school-age child calls the school to ask when her daughter can return to school after treatment for Pediculosis capitis. What is the nurse’s best response?
- A. When all live lice are eliminated by the treatment
- B. Two weeks after the last treatment
- C. As soon as the itching stops
- D. After the treatment kills all the live lice
Correct answer: D
Rationale: The correct answer is 'After the treatment kills all the live lice.' The child can return to school once all live lice are eliminated to prevent the spread of Pediculosis capitis. This is essential as live lice are highly contagious. Choices A, B, and C are incorrect. Waiting for the itching to stop or for an epidemic to subside does not ensure that all live lice are eradicated, which is crucial to prevent reinfestation and transmission.
4. The nurse is preparing to send a client to the cardiac catheterization lab for an angioplasty. Which client report is most important for the nurse to explore further prior to the start of the procedure?
- A. Verbalizes a fear of being in a confined space.
- B. Drank a glass of water in the past 2 hours.
- C. Reports left chest wall pain prior to admission.
- D. Experiences facial swelling after eating crab
Correct answer: C
Rationale: The correct answer is C. Left chest wall pain could indicate ongoing cardiac issues or instability, which needs to be assessed before proceeding with the procedure. This pain could be related to the heart and may suggest a potential risk during the angioplasty. Options A, B, and D do not directly relate to cardiac complications during the procedure, making them less urgent for immediate assessment. Fear of confined spaces, drinking water, and facial swelling after eating crab are not immediate risks to the client's safety in the context of a cardiac catheterization procedure.
5. A 17-year-old adolescent is brought to the emergency department by both parents because the adolescent has been coughing and running a fever with flu-like symptoms for the past 24 hours. Which intervention should the nurse implement first?
- A. Obtain a chest X-ray per protocol.
- B. Place a mask on the client’s face.
- C. Assess the client’s temperature.
- D. Determine the client’s blood pressure
Correct answer: B
Rationale: The correct intervention for the nurse to implement first is to place a mask on the client's face. This is crucial to prevent the potential spread of infectious agents to others in the emergency department, considering the presenting symptoms of coughing and fever. Placing a mask helps in containing respiratory secretions and reducing the risk of airborne transmission. Assessing the client’s temperature or blood pressure can be done after ensuring infection control measures. Obtaining a chest X-ray would be a secondary intervention once immediate infection control is addressed.
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