HESI LPN
HESI CAT Exam
1. After a motor vehicle collision, a client is admitted to the medical unit with acute adrenal insufficiency (Addisonian crisis). Which prescription should the nurse implement?
- A. Determine serum glucose levels
- B. Withhold potassium additives to IV fluids
- C. Give IV corticosteroid replacement
- D. Prepare to initiate IV vasopressors
Correct answer: C
Rationale: In a client with acute adrenal insufficiency (Addisonian crisis) following a motor vehicle collision, the priority intervention is to administer IV corticosteroid replacement. This is crucial to manage the crisis by replacing the deficient cortisol. Determining serum glucose levels (Choice A) may be important but is not the immediate priority in this situation. Withholding potassium additives to IV fluids (Choice B) is not indicated and may exacerbate electrolyte imbalances. Initiating IV vasopressors (Choice D) is not the primary treatment for acute adrenal insufficiency and should be reserved for managing hypotension that is unresponsive to corticosteroid therapy.
2. The parents of a 6-year-old recently diagnosed with asthma should be taught that the symptom of acute episodes of asthma is due to which physiological response?
- A. Inflammation of the mucous membrane & bronchospasm
- B. Increased mucus production and bronchoconstriction
- C. Allergic reactions and hyperventilation
- D. Airway narrowing and decreased lung capacity
Correct answer: A
Rationale: The correct answer is A: Inflammation of the mucous membrane & bronchospasm. Acute asthma episodes are primarily caused by inflammation of the airways and bronchospasm, which lead to airway obstruction. Increased mucus production and bronchoconstriction (Choice B) are part of the physiological responses in asthma but do not directly cause acute episodes. Allergic reactions and hyperventilation (Choice C) are related to asthma triggers and responses but are not the direct causes of acute episodes. Airway narrowing and decreased lung capacity (Choice D) are consequences of inflammation and bronchospasm but do not explain the physiological response leading to acute asthma episodes.
3. A 41-week gestation primigravida woman is admitted to labor and delivery for induction of labor. What finding should the nurse report to the healthcare provider before initiating the infusion of oxytocin?
- A. Fetal heart tones located in the upper right quadrant
- B. Biophysical profile results showing oligohydramnios
- C. Regular contractions occurring every 10 minutes
- D. Sterile vaginal exam revealing 3 cm dilation
Correct answer: B
Rationale: Oligohydramnios (low amniotic fluid) is a significant concern before starting oxytocin and should be reported to ensure safe labor induction. This finding can indicate potential fetal compromise and requires immediate evaluation. Fetal heart tones located in a specific quadrant, regular contractions, and cervical dilation are common assessments during labor but are not as critical as oligohydramnios in this scenario.
4. When preparing the client for a thoracentesis, which action is essential for the nurse to take?
- A. Encourage the client to cough during the procedure
- B. Ask the client to void prior to the procedure
- C. Have the client lie in the prone position
- D. Determine if chest x-rays have been completed
Correct answer: B
Rationale: The essential action for the nurse to take when preparing a client for a thoracentesis is to ask the client to void prior to the procedure. This step is crucial as it helps prevent discomfort and reduces the risk of accidental injury. Encouraging the client to cough during the procedure (Choice A) is inappropriate as it can affect the accuracy of the thoracentesis. Having the client lie in the prone position (Choice C) is incorrect; the procedure is typically performed with the client sitting upright or slightly leaning forward. While determining if chest x-rays have been completed (Choice D) is important, ensuring the client has emptied their bladder is more critical for their comfort and safety during the procedure.
5. An adult client with a broken femur is transferred to the medical-surgical unit to await surgical internal fixation after the application of an external traction device to stabilize the leg. An hour after an opioid analgesic was administered, the client reports muscle spasms and pain at the fracture site. While waiting for the client to be transported to surgery, which action should the nurse implement?
- A. Observe for signs of deep vein thrombosis.
- B. Administer a PRN dose of a muscle relaxant.
- C. Check the client’s most recent electrolyte values.
- D. Reduce the weight on the traction device.
Correct answer: B
Rationale: The correct answer is B: Administer a PRN dose of a muscle relaxant. Muscle spasms and pain might be relieved by muscle relaxants, which are appropriate before surgery. Choice A is incorrect because the client is experiencing muscle spasms, not signs of deep vein thrombosis. Choice C is not the most immediate action needed in this situation. Choice D is incorrect because reducing the weight on the traction device would not directly address the muscle spasms and pain reported by the client.
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