HESI LPN
Adult Health 2 Exam 1
1. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
2. A client with a history of chronic obstructive pulmonary disease (COPD) is prescribed oxygen therapy at 2 liters per minute via nasal cannula. What is the most important instruction the nurse should provide?
- A. Increase the oxygen flow rate if shortness of breath occurs
- B. Use oxygen only when experiencing shortness of breath
- C. Do not adjust the oxygen flow rate without consulting a healthcare provider
- D. Use a humidifier with the oxygen to prevent dry mucous membranes
Correct answer: C
Rationale: The most important instruction the nurse should provide to a client with COPD prescribed oxygen therapy is not to adjust the oxygen flow rate without consulting a healthcare provider. This is crucial because too much oxygen can suppress the client's respiratory drive, leading to further complications. Choice A is incorrect because increasing the oxygen flow rate without medical advice can be harmful. Choice B is incorrect as oxygen therapy should be used as prescribed, not just when symptoms occur. Choice D is incorrect as the priority is to ensure the correct oxygen flow rate rather than using a humidifier.
3. A client with a diagnosis of bipolar disorder is taking lithium. What is the most important information the nurse should provide?
- A. Take the medication on an empty stomach
- B. Monitor sodium intake
- C. Report any signs of weight gain
- D. Avoid excessive caffeine intake
Correct answer: B
Rationale: The correct answer is B. Sodium levels can affect lithium levels in the body, so it is crucial to monitor sodium intake to prevent toxicity or subtherapeutic levels. Lithium is typically taken on an empty stomach to enhance absorption, making choice A more accurate than the original 'Take the medication with food.' Reporting weight gain, as mentioned in choice C, is important for monitoring side effects but is not as critical as ensuring proper lithium levels through sodium intake monitoring. Choice D, avoiding excessive caffeine intake, is not a priority concern directly related to lithium therapy.
4. A client begins taking an antidepressant drug during the second day of hospitalization. Which assessment is most important for the nurse to include in this client's plan of care while the client is taking the antidepressant?
- A. Appetite
- B. Mood
- C. Withdrawal
- D. Energy level
Correct answer: B
Rationale: Corrected Rationale: Monitoring the client's mood is essential when starting an antidepressant to assess for any changes or adverse effects related to the medication. Changes in mood can indicate the effectiveness of the antidepressant or potential side effects. Assessing appetite (Choice A) is important but not as crucial as monitoring mood in this context. Withdrawal symptoms (Choice C) are more relevant when discontinuing antidepressants rather than starting them. Energy level (Choice D) can be influenced by various factors and may not directly reflect the client's response to the antidepressant.
5. A postoperative client complains of sudden shortness of breath. What should the nurse do first?
- A. Administer oxygen
- B. Call the healthcare provider
- C. Prepare for chest x-ray
- D. Assess the client's lung sounds
Correct answer: D
Rationale: Assessing the client's lung sounds is the most appropriate initial action when a postoperative client complains of sudden shortness of breath. This step helps the nurse evaluate the respiratory status and detect abnormalities such as decreased breath sounds or crackles, which could indicate a serious condition like a pulmonary embolism. Administering oxygen (Choice A) may be necessary but should come after assessing the lung sounds to ensure the appropriate intervention. Calling the healthcare provider (Choice B) or preparing for a chest x-ray (Choice C) can be important subsequent actions based on the findings from the lung sound assessment, but they are not the first priority in this situation.
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