HESI LPN
CAT Exam Practice Test
1. Which type of Leukocyte is involved with allergic responses and the destruction of parasitic worms?
- A. Neutrophils
- B. Lymphocytes
- C. Eosinophils
- D. Monocytes
Correct answer: C
Rationale: Eosinophils are the correct answer. Eosinophils are specialized white blood cells that play a crucial role in allergic responses and combating parasitic infections. They release substances to destroy parasites and modulate allergic reactions. Neutrophils (Choice A) are mainly involved in fighting bacterial infections. Lymphocytes (Choice B) play a key role in the immune response, including antibody production, but are not primarily responsible for combating parasites or allergic responses. Monocytes (Choice D) are involved in immune defense, differentiating into macrophages or dendritic cells, but they are not mainly associated with allergic responses or parasitic worm destruction.
2. A male client with angina pectoris is being discharged from the hospital. What instructions should the nurse plan to include in the discharge teaching?
- A. Engage in physical exercise before eating to help decrease cholesterol levels.
- B. Avoid walking briskly in cold weather to prevent a decrease in cardiac output.
- C. Keep nitroglycerin in a light-colored plastic bottle and readily available.
- D. Avoid all isometric exercises, but walk regularly.
Correct answer: C
Rationale: The correct answer is to keep nitroglycerin in a light-colored container and readily available. Nitroglycerin should be protected from light to maintain its effectiveness. Option A is incorrect because physical exercise immediately before eating can trigger angina. Option B is incorrect as cold weather can exacerbate angina symptoms. Option D is incorrect as isometric exercises can increase the workload on the heart, which is not recommended for individuals with angina.
3. An adolescent male client is admitted to the hospital. Based on Erikson’s theory of psychosocial development, which nursing intervention best assists this adolescent’s adjustment to his hospital stay?
- A. Invite him to participate in the evening group activity
- B. Schedule frequent private phone calls to his parents
- C. Provide access to a variety of video games in his room
- D. Encourage him to learn his way around the hospital
Correct answer: A
Rationale: Inviting the adolescent to participate in group activities aligns with Erikson's theory of psychosocial development, specifically the stage of developing social relationships. By engaging in group activities, the adolescent can interact with peers, fostering social skills and aiding in adjustment to the hospital environment. Choice B is incorrect as excessive reliance on phone calls to parents may hinder the adolescent's autonomy and independence, which are crucial aspects of Erikson's theory for this age group. Choice C, providing access to video games, while potentially offering entertainment, does not directly address the need for social interaction and relationship-building. Choice D, encouraging the adolescent to learn his way around the hospital, is important for familiarity but may not directly address the need for social interaction and adjustment in the hospital setting.
4. The nurse working on a mental health unit is prioritizing nursing care activities due to a staffing shortage. One practical nurse (PN) is on the unit with the nurse, and another RN is expected to arrive within two hours. Clients need to be awakened, and morning medications need to be prepared. Which plan is best for the nurse to implement?
- A. Wake all the clients and instruct them to go to the dining area for medication administration
- B. Explain to the clients that it will be necessary to cooperate until another RN arrives
- C. Ask the PN to administer medications as clients are awakened so both nurses are available
- D. Allow the clients to sleep until a third staff person can assist with unit activities
Correct answer: C
Rationale: The best plan for the nurse to implement is to ask the PN to administer medications as clients are awakened. This approach ensures that medication administration and client care are efficiently managed despite the staffing shortage. Option A is incorrect as it may disrupt the workflow and create unnecessary chaos. Option B is not the best choice as it does not address the immediate need for medication administration. Option D is not ideal as it delays client care until additional staff arrive, potentially compromising patient safety and timely medication administration.
5. A client with leukemia who is receiving myelosuppressive chemotherapy has a platelet count of 25,000/mm3. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor for signs of activity intolerance
- B. Require visitors to wear respiratory masks
- C. Assess urine and stool for occult blood
- D. Obtain client’s temperature q4 hours
Correct answer: C
Rationale: The correct answer is to assess urine and stool for occult blood. With a low platelet count, there is an increased risk of bleeding. Monitoring for occult blood is essential to detect any signs of internal bleeding. Choices A, B, and D are not the priority interventions in this situation. While monitoring for signs of activity intolerance, requiring visitors to wear respiratory masks, and obtaining the client's temperature are important aspects of care, they are not as critical as assessing for occult blood in a client with a low platelet count.
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