HESI LPN
Fundamentals of Nursing HESI
1. In planning care for a premature infant with respiratory distress syndrome, nursing actions are based on the fact that the most likely cause of this problem stems from the infant's inability to
- A. Stabilize alveolar surface tension
- B. Maintain alveolar surface tension
- C. Promote normal pulmonary blood flow
- D. Regulate intra-cardiac pressure
Correct answer: B
Rationale: The correct answer is B: Maintain alveolar surface tension. Respiratory distress syndrome in premature infants is often caused by a deficiency in surfactant, a substance that helps maintain alveolar surface tension. Without adequate surfactant, the alveoli collapse, making it difficult for the infant to oxygenate effectively. Choices A, C, and D are incorrect because stabilizing alveolar surface tension is not the issue, promoting normal pulmonary blood flow and regulating intra-cardiac pressure are not directly related to the pathophysiology of respiratory distress syndrome in premature infants.
2. A client has been tentatively diagnosed with Graves' disease (hyperthyroidism). Which of these findings noted on the initial nursing assessment requires quick intervention by the nurse?
- A. A report of 10 pounds weight loss in the last month
- B. A comment by the client 'I just can't sit still.'
- C. The appearance of eyeballs that appear to 'pop' out of the client's eye sockets
- D. A report of the sudden onset of irritability in the past 2 weeks
Correct answer: C
Rationale: The appearance of eyeballs that appear to 'pop' out of the client's eye sockets, known as exophthalmos, requires quick intervention as it is a severe symptom of Graves' disease. Exophthalmos can indicate an acute condition and may lead to serious complications such as optic nerve damage or corneal ulceration. Weight loss, restlessness, and irritability are common manifestations of hyperthyroidism but do not pose immediate risks compared to the ocular complications associated with exophthalmos.
3. When should the nurse plan to collect a sputum specimen for culture and sensitivity as ordered by a client's provider?
- A. In the morning upon rising.
- B. Immediately after the client eats breakfast.
- C. Before the client goes to bed.
- D. After the client has had a drink of water.
Correct answer: A
Rationale: The correct time to collect a sputum specimen for culture and sensitivity is in the morning upon rising. This timing ensures the most concentrated sample as sputum produced overnight tends to accumulate and sit in the airways, providing a quality sample for testing. Collecting the specimen immediately after eating breakfast (choice B) may introduce food particles that could contaminate the sample. Collecting it before bed (choice C) may lead to a diluted sample due to daily activities. Collecting the specimen after having a drink of water (choice D) can also result in a diluted sample, impacting the accuracy of the test results.
4. A nurse on a medical-surgical unit is receiving a change-of-shift report for four clients. Which of the following clients should the nurse see first?
- A. A client who has new onset of dyspnea 24 hours after a total hip arthroplasty
- B. A client who has acute abdominal pain rated 4 on a scale from 0 to 10
- C. A client who has a UTI and low-grade fever
- D. A client who has pneumonia and an oxygen saturation of 96%
Correct answer: A
Rationale: The nurse should prioritize seeing the client who has new onset dyspnea 24 hours after a total hip arthroplasty first. This sudden dyspnea could indicate a serious complication like a pulmonary embolism, which requires immediate assessment and intervention. Acute abdominal pain, a UTI with a low-grade fever, and pneumonia with an oxygen saturation of 96% are important concerns but are not as immediately life-threatening as potential pulmonary embolism indicated by sudden dyspnea postoperatively.
5. When measuring a client's blood pressure, which approach is the priority for a nurse caring for a client with hypertension?
- A. Obtain the blood pressure under the same conditions each time
- B. Use a different arm for each measurement
- C. Measure the blood pressure while the client is standing
- D. Take multiple readings at different times of the day
Correct answer: A
Rationale: The correct approach when measuring a client's blood pressure, especially for a client with hypertension, is to obtain the blood pressure under the same conditions each time. Consistency in measurement conditions helps ensure accurate and comparable blood pressure readings. Using a different arm for each measurement (Choice B) is not ideal as it can lead to variations in readings. Measuring the blood pressure while the client is standing (Choice C) is not the standard practice and may not provide accurate results. Taking multiple readings at different times of the day (Choice D) may be useful for monitoring blood pressure trends but is not the priority when ensuring accurate individual readings.
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