HESI LPN
PN Exit Exam 2023 Quizlet
1. Inspiratory and expiratory stridor may be heard in a client who:
- A. Is experiencing an exacerbation of goiter
- B. Is experiencing an acute asthmatic attack
- C. Has aspirated a piece of meat
- D. Has severe laryngotracheitis
Correct answer: D
Rationale: Inspiratory and expiratory stridor are high-pitched, wheezing sounds caused by disrupted airflow due to airway obstruction. Severe laryngotracheitis, involving inflammation and swelling of the larynx and trachea, leads to airway obstruction and can produce both inspiratory and expiratory stridor. Exacerbation of goiter, an acute asthmatic attack, and aspiration of a piece of meat are not typically associated with both inspiratory and expiratory stridor. Therefore, choices A, B, and C are incorrect.
2. Before administering an antibiotic that can cause nephrotoxicity, which lab value is most important for the PN to review?
- A. Hemoglobin and Hematocrit
- B. Serum Calcium
- C. Serum Creatinine
- D. WBC
Correct answer: C
Rationale: Serum creatinine is the most important lab value to review before administering an antibiotic that can cause nephrotoxicity. This is because serum creatinine is a key indicator of kidney function. An elevated serum creatinine level may indicate impaired renal function, and administering nephrotoxic drugs in such situations can further damage the kidneys. Monitoring serum creatinine levels helps healthcare providers assess renal function and make informed decisions regarding drug administration. Choices A, B, and D are not as directly related to kidney function and nephrotoxicity, making them less crucial in this scenario. Hemoglobin and hematocrit levels assess for anemia, serum calcium levels are more related to bone health and nerve function, and WBC count is associated with immune response, none of which directly reflect kidney function or the risk of nephrotoxicity.
3. Which of the following is the best method for confirming nasogastric tube placement?
- A. Auscultating over the stomach while injecting air
- B. Checking the pH of the aspirate
- C. Observing the patient’s response during feeding
- D. Measuring the external length of the tube
Correct answer: B
Rationale: Checking the pH of the aspirate is the most reliable method to confirm nasogastric tube placement as it provides direct evidence of the tube's location in the stomach. When the pH is acidic (pH < 5), it indicates that the tube is correctly placed in the stomach. Auscultating over the stomach while injecting air may not always be accurate, as the sound can be misleading due to various factors. Observing the patient’s response during feeding is not a definitive method for confirming tube placement, as it can be influenced by other factors. Measuring the external length of the tube does not ensure correct placement within the GI tract and can be affected by external factors like patient anatomy.
4. A nurse is assessing a day-old infant for jaundice. Which of the following is the best method for this?
- A. Applying pressure over a bony area such as the forehead and evaluating the skin color after the pressure is removed
- B. Assessing the color of the infant’s hands and feet
- C. Assessing the infant’s tongue
- D. Assessing the infant’s arms and legs
Correct answer: A
Rationale: The correct answer is A. Applying pressure over a bony area and evaluating the skin color after the pressure is removed is the most accurate method for assessing jaundice in a day-old infant. This technique helps in identifying any yellowing of the skin, which is a key indicator of jaundice. Choices B, C, and D are less effective methods for assessing jaundice in a newborn. Assessing the color of the hands and feet may not give a reliable indication of jaundice, while evaluating the tongue, arms, and legs are not as specific or accurate as applying pressure over a bony area.
5. A client post-mastectomy is concerned about the risk of lymphedema. What should the nurse include in the discharge instructions to minimize this risk?
- A. Wear compression garments on the affected arm.
- B. Avoid venipunctures and blood pressure measurements on the affected arm.
- C. Perform vigorous exercises to strengthen the affected arm.
- D. Keep the affected arm elevated at all times.
Correct answer: B
Rationale: To minimize the risk of lymphedema after a mastectomy, it is essential to instruct the client to avoid venipunctures and blood pressure measurements on the affected arm. These procedures can lead to trauma or impede lymphatic flow, increasing the risk of lymphedema. Wearing compression garments helps manage lymphedema but is not preventive. Performing vigorous exercises can strain the affected arm and increase the risk of lymphedema. Keeping the affected arm elevated at all times is unnecessary and not an effective preventive measure against lymphedema.
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