HESI LPN
Adult Health 2 Final Exam
1. A client with a history of congestive heart failure is prescribed digoxin (Lanoxin). Which assessment is most important for the nurse to obtain before administering this medication?
- A. Blood pressure
- B. Heart rate
- C. Respiratory rate
- D. Oxygen saturation
Correct answer: B
Rationale: The correct answer is B: Heart rate. Before administering digoxin to a client with a history of congestive heart failure, the nurse must assess the client's heart rate. Digoxin can cause bradycardia, so monitoring the heart rate is crucial to prevent potential complications. Assessing blood pressure, respiratory rate, and oxygen saturation are important assessments but are not as directly influenced by digoxin as heart rate is in this scenario. Blood pressure can be affected by various factors, including dehydration or other medications. Respiratory rate and oxygen saturation are more related to respiratory function and gas exchange, which are not the primary concerns when administering digoxin to a client with heart failure.
2. The practical nurse is preparing to administer a prescription for cefazolin (Kefzol) 600 mg IM every six hours. The available vial is labeled, 'Cefazolin (Kefzol) 1 gram,' and the instructions for reconstitution state, 'For IM use add 2 ml sterile water for injection. Total volume after reconstitution = 2.5 ml.' When reconstituted, how many milligrams are in each milliliter of solution?
- A. 400 mg/mL
- B. 500 mg/mL
- C. 450 mg/mL
- D. 350 mg/mL
Correct answer: A
Rationale: After reconstitution, the concentration of cefazolin solution is calculated by dividing the total amount of drug (600 mg) by the total volume after reconstitution (2.5 mL). This gives 600 mg / 2.5 mL = 240 mg/mL. However, the question asks for the concentration in each milliliter of solution after reconstitution, so we need to consider the final volume of 2.5 mL. Therefore, 240 mg/mL * 2.5 mL = 600 mg, which means each milliliter contains 240 mg of cefazolin. Therefore, after reconstitution, there are 400 mg of cefazolin in each milliliter of solution. Choices B, C, and D are incorrect as they do not accurately reflect the concentration after reconstitution.
3. How should the nurse assess for cyanosis in a client with dark skin who is in respiratory distress?
- A. Abnormal skin color changes in a client with dark skin cannot be determined
- B. Blanching the soles of the feet in a client with dark skin reveals cyanosis
- C. The lips and mucus membranes of a client with dark skin are dusky in color
- D. Cyanosis in a client with dark skin is seen in the sclera
Correct answer: C
Rationale: Observing the lips and mucous membranes provides a reliable indicator of cyanosis in clients with dark skin tones. Choice A is incorrect because cyanosis can be assessed in clients with dark skin by observing other body areas. Choice B is incorrect as blanching the soles of the feet is not a relevant method for assessing cyanosis. Choice D is incorrect as cyanosis is not typically seen in the sclera in clients with dark skin.
4. A client with a history of asthma is experiencing wheezing and shortness of breath. What is the priority nursing intervention?
- A. Administer a bronchodilator as prescribed
- B. Encourage the client to drink fluids
- C. Place the client in an upright position
- D. Assess the client's peak flow rate
Correct answer: A
Rationale: Administering a bronchodilator as prescribed is the priority nursing intervention for a client experiencing wheezing and shortness of breath due to asthma. Bronchodilators help relieve bronchoconstriction, allowing better airflow and improving breathing. Encouraging the client to drink fluids may be beneficial in certain situations, but it is not the priority when the client is in respiratory distress. Placing the client in an upright position, not supine, can facilitate easier breathing by allowing the chest to expand fully. While assessing the client's peak flow rate is important in asthma management, in this acute situation, the priority is to provide immediate relief by administering the bronchodilator.
5. What intervention should the nurse implement for a client experiencing an anxiety attack?
- A. Teach deep breathing exercises
- B. Provide a quiet environment
- C. Administer anxiolytic medication as prescribed
- D. Engage the client in conversation
Correct answer: C
Rationale: Administering prescribed anxiolytic medication is the most appropriate intervention for a client experiencing an anxiety attack. Anxiolytic medications can provide rapid relief from severe anxiety symptoms. Teaching deep breathing exercises (choice A) can be helpful for managing mild anxiety but may not be sufficient during an acute anxiety attack. Providing a quiet environment (choice B) is beneficial to reduce stimuli, but it may not address the immediate distress of an ongoing anxiety attack. Engaging the client in conversation (choice D) is generally not recommended during an anxiety attack as it can potentially exacerbate the symptoms by increasing stimulation.
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