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NCLEX PN Test Bank
1. Why is monitoring Serum Vancomycin levels important?
- A. to assess renal function
- B. to determine therapeutic range
- C. to measure trough levels
- D. to evaluate antibiotic resistance
Correct answer: to determine therapeutic range
Rationale: Monitoring Serum Vancomycin levels is essential to determine the drug's therapeutic range, ensuring optimal effectiveness while avoiding toxicity. Peak levels indicate the drug's highest concentration, while trough levels represent the lowest concentration before the next dose. Assessing renal function is typically done using creatinine, BUN, or creatinine clearance tests, not Serum Vancomycin levels. Evaluating antibiotic resistance involves sensitivity testing, not monitoring Vancomycin levels. Therefore, the correct answer is to determine the therapeutic range.
2. When auscultating breath sounds, the nurse auscultates over the following locations:
- A. Trachea and lateral areas of thoracic cage
- B. Anterior and posterior aspects of all lung fields
- C. The mid section as well as the lateral section of the lungs
- D. The mid-clavicular to mid-axillary lines comparing side to side
Correct answer: Anterior and posterior aspects of all lung fields
Rationale: The correct answer is B: Anterior and posterior aspects of all lung fields. When auscultating breath sounds, it is essential to listen to the front (anterior) and back (posterior) aspects of all lung fields. This comprehensive approach allows for a thorough assessment of breath sounds throughout the lungs. Choices A, C, and D are incorrect. Choice A is too limited as it only focuses on the trachea and lateral areas, not covering all lung fields. Choice C is also too limited, referring to specific sections of the lungs (mid section and lateral section). Choice D is incorrect as it suggests comparing specific lines on the chest (mid-clavicular to mid-axillary), which is not a standard practice for auscultating breath sounds.
3. A client was involved in a motor vehicle accident in which the seat belt was not worn. The client is exhibiting crepitus, decreased breath sounds on the left, complains of shortness of breath, and has a respiratory rate of 34/min. Which of the following assessment findings should concern the nurse the most?
- A. temperature of 102°F and a productive cough
- B. arterial blood gases (ABGs) with a PaO2 of 92 mmHg and PaCO2 of 40 mmHg
- C. trachea deviating to the right
- D. barrel-chested appearance
Correct answer: trachea deviating to the right
Rationale: The correct answer is 'trachea deviating to the right.' A mediastinal shift is indicative of a tension pneumothorax, which is a dangerous complication seen in trauma patients with symptoms like crepitus, decreased breath sounds, shortness of breath, and tachypnea. Assessing for acute traumatic injuries is crucial in this context. Choice A, a temperature of 102°F and a productive cough, is common in pneumonia cases and not as concerning as a mediastinal shift. Choice B, ABGs with a PaO2 of 92 mmHg and PaCO2 of 40 mmHg, shows values within normal limits and does not suggest a tension pneumothorax. Choice D, a barrel-chested appearance, is typical of COPD and not directly related to the acute traumatic injury described. A tension pneumothorax is a medical emergency where air cannot escape the pleural cavity, leading to lung collapse and a mediastinal shift to the unaffected side with a downward displacement of the diaphragm.
4. The greatest time savers when planning client care include all of the following except:
- A. reacting to the crisis of the moment
- B. setting goals
- C. planning
- D. specifying priorities
Correct answer: reacting to the crisis of the moment
Rationale: The greatest time-savers when planning client care are activities that facilitate focus and completion of priority items. Time-savers include setting goals, specifying priorities, planning tasks, delegating where appropriate, reassessment, and ongoing evaluation of needs. Reacting to the crisis of the moment is not a time-saving strategy in client care planning; it can lead to inefficiency, lack of focus, and potentially missing important priority items. Therefore, the correct answer is 'reacting to the crisis of the moment.' Choices B, C, and D are essential components for effective client care planning as they help in organizing and prioritizing tasks, setting objectives, and ensuring a structured approach to care delivery.
5. A client has been diagnosed with Disseminated Intravascular Coagulation (DIC) and transferred to the medical intensive care unit (ICU) following an acute bleeding episode. In the ICU, continuous Heparin drip therapy is initiated. Which of the following assessment findings indicates a positive response to Heparin therapy?
- A. increased platelet count
- B. increased fibrinogen
- C. decreased fibrin split products
- D. decreased bleeding
Correct answer: increased fibrinogen
Rationale: In the context of DIC, effective Heparin therapy aims to halt the process of intravascular coagulation. One of the indicators of a positive response to Heparin therapy is an increase in fibrinogen levels. Heparin interferes with the conversion of fibrinogen to fibrin by thrombin. This interruption helps increase the availability of fibrinogen. While the platelet count may increase due to improved clotting, the primary focus of Heparin therapy is on fibrinogen. Fibrin split products are expected to decrease as the coagulation cascade is controlled. Although decreased bleeding is an ultimate goal, the immediate effect of Heparin is not directly on bleeding but on the coagulation process.
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