HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
2. A client is being taught how to care for their tracheostomy at home. Which of the following instructions should the nurse include in the teaching?
- A. Use tracheostomy covers when outdoors.
- B. Clean the tracheostomy site with hydrogen peroxide daily.
- C. Change the tracheostomy tube weekly.
- D. Apply ointment around the tracheostomy site.
Correct answer: A
Rationale: The correct instruction is to use tracheostomy covers when outdoors. Tracheostomy covers serve to protect the airway from environmental contaminants, reducing the risk of infection. Choice B is incorrect because hydrogen peroxide can be irritating to the skin and is not recommended for cleaning the tracheostomy site. Choice C is incorrect as tracheostomy tubes should not be routinely changed weekly unless there is a specific medical indication. Changing it without a need can introduce infection or damage the stoma. Choice D is incorrect as applying ointment around the tracheostomy site can lead to occlusion of the stoma and interfere with breathing.
3. A client is experiencing dehydration, and the nurse is planning care. Which of the following actions should the nurse include?
- A. Administer antihypertensives as prescribed.
- B. Check the client’s weight daily.
- C. Notify the provider if the urine output is less than 30 mL/hr.
- D. Encourage the client to ambulate independently four times a day.
Correct answer: B
Rationale: Checking the client's weight daily is essential for monitoring fluid status in dehydration. Administering antihypertensives, notifying the provider of insufficient urine output, and encouraging ambulation are not primary interventions for managing dehydration. Administering antihypertensives may affect blood pressure, but it is not a direct intervention for dehydration. Notifying the provider of a urine output less than 30 mL/hr indicates oliguria, which is a sign of reduced kidney function rather than dehydration. Encouraging ambulation is a general nursing intervention and does not directly address the fluid imbalance associated with dehydration.
4. A healthcare provider is caring for a client who has a heart murmur. The healthcare provider is preparing to auscultate the pulmonary valve. Over which of the following locations should the healthcare provider place the bell of the stethoscope?
- A. Second intercostal space at the left sternal border
- B. Fifth intercostal space at the midclavicular line
- C. Fourth intercostal space at the left sternal border
- D. Fifth intercostal space at the left anterior axillary line
Correct answer: A
Rationale: The correct location to auscultate the pulmonary valve is the second intercostal space at the left sternal border. This area is where the pulmonary valve can best be heard due to its anatomical position. Choice B, the fifth intercostal space at the midclavicular line, is the location for auscultating the mitral valve. Choice C, the fourth intercostal space at the left sternal border, is the area for the tricuspid valve. Choice D, the fifth intercostal space at the left anterior axillary line, is the site for listening to the mitral valve as well. Therefore, option A is the correct choice for auscultating the pulmonary valve.
5. A client is admitted with a tentative diagnosis of congestive heart failure. Which of the following assessments would the nurse expect to be consistent with this problem?
- A. Chest pain
- B. Pallor
- C. Inspiratory crackles
- D. Heart murmur
Correct answer: C
Rationale: Inspiratory crackles are a common finding in patients with congestive heart failure due to the accumulation of fluid in the lungs, leading to crackling sounds during inspiration. Chest pain (Choice A) is more commonly associated with conditions like angina or myocardial infarction and is not a typical symptom of congestive heart failure. Pallor (Choice B) is a general symptom of various conditions and not specific to congestive heart failure. While a heart murmur (Choice D) may be heard in some cases of congestive heart failure, it is not as consistent as inspiratory crackles in indicating the condition.
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