HESI LPN
HESI Practice Test for Fundamentals
1. The healthcare provider is caring for a client with tuberculosis (TB). Which type of isolation precautions should the healthcare provider implement?
- A. Droplet precautions
- B. Airborne precautions
- C. Contact precautions
- D. Standard precautions
Correct answer: B
Rationale: When caring for a client with tuberculosis (TB), airborne precautions should be implemented. Tuberculosis is spread through the air via droplet nuclei, requiring the use of airborne precautions to prevent the transmission of the infection. Droplet precautions are used for diseases spread by large respiratory droplets, such as influenza or pertussis. Contact precautions are used for diseases that spread through direct contact, such as MRSA. Standard precautions are used for all clients to prevent the transmission of infections from blood, body fluids, non-intact skin, and mucous membranes.
2. After abdominal surgery, a client has not urinated since the urinary catheter was removed 8 hours ago. What action should the LPN take first?
- A. Perform a bladder scan to assess for urinary retention.
- B. Encourage the client to drink fluids.
- C. Insert a straight catheter to drain the bladder.
- D. Administer a diuretic as prescribed.
Correct answer: A
Rationale: Performing a bladder scan is the initial step to assess for urinary retention in a postoperative client. This non-invasive technique helps determine the volume of urine in the bladder, guiding further interventions. Encouraging the client to drink fluids (Choice B) may be beneficial but is not the priority when assessing for urinary retention. Inserting a straight catheter (Choice C) should not be the initial action without first assessing for retention. Administering a diuretic (Choice D) should not be done without confirming the need through assessment.
3. A client is being discharged with a prescription for digoxin (Lanoxin). Which of the following instructions should the nurse include in the discharge teaching?
- A. Take your pulse daily before taking this medication.
- B. Take an extra dose if you miss a dose of this medication.
- C. Take this medication with food.
- D. Avoid eating foods high in potassium while taking this medication.
Correct answer: A
Rationale: The correct answer is A: 'Take your pulse daily before taking this medication.' It is essential for clients taking digoxin to monitor their pulse daily to detect bradycardia, a potential side effect. Choice B is incorrect because clients should never take an extra dose if a dose is missed; they should take the missed dose as soon as remembered unless it is close to the time for the next dose. Choice C is incorrect because digoxin is preferably taken with food to minimize gastrointestinal side effects. Choice D is incorrect because digoxin itself can cause low potassium levels, so avoiding potassium-rich foods is not necessary.
4. 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.
5. A client with diabetes mellitus reports feeling anxious, shaky, and weak. These findings are manifestations of which of the following complications?
- A. Hyperglycemia
- B. Hypoglycemia
- C. Ketoacidosis
- D. Dawn phenomenon
Correct answer: B
Rationale: The correct answer is B, Hypoglycemia. In diabetes mellitus, hypoglycemia can lead to symptoms such as anxiety, shakiness, and weakness due to low blood sugar levels. Hyperglycemia (choice A) is high blood sugar levels and typically presents with symptoms like increased thirst and frequent urination. Ketoacidosis (choice C) is a serious complication of diabetes characterized by high levels of ketones in the blood, leading to symptoms such as fruity breath and rapid breathing. The Dawn phenomenon (choice D) refers to an abnormal early-morning increase in blood sugar levels without an associated hypoglycemia during the night.
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