HESI LPN
Adult Health 1 Exam 1
1. The client is diagnosed with pneumonia. Which intervention is most effective in promoting airway clearance?
- A. Administer bronchodilators as prescribed
- B. Encourage increased fluid intake
- C. Perform chest physiotherapy
- D. Provide humidified oxygen
Correct answer: B
Rationale: Encouraging increased fluid intake is the most effective intervention in promoting airway clearance for a client with pneumonia. Increasing fluid intake helps to thin respiratory secretions, making it easier for the client to clear the airways. Administering bronchodilators may help with bronchospasm but does not directly promote airway clearance. Chest physiotherapy may be beneficial but is not the first-line intervention for promoting airway clearance in pneumonia. Providing humidified oxygen can improve oxygenation but does not directly address airway clearance.
2. Before administration of a stat dose of potassium chloride IV for a client with hypokalemia, what is the most important action for the nurse?
- A. Ensure the IV is flowing freely
- B. Mix the medication thoroughly
- C. Check the client’s electrolyte levels
- D. Obtain a baseline ECG
Correct answer: A
Rationale: The most crucial action for the nurse before administering a stat dose of potassium chloride IV to a client with hypokalemia is to ensure the IV is flowing freely. A freely flowing IV is essential to safely and effectively deliver potassium chloride, helping to prevent infusion-related issues. Checking the client's electrolyte levels or obtaining a baseline ECG may be important but are not the most critical actions before administering the medication. Mixing the medication thoroughly is not applicable in this scenario as potassium chloride is typically provided ready to use.
3. The practical nurse is preparing to administer a prescription for cefazolin (Kefzol) 600 mg IM every six hours. The available vial is labeled, 'Cefazolin (Kefzol) 1 gram,' and the instructions for reconstitution state, 'For IM use add 2 ml sterile water for injection. Total volume after reconstitution = 2.5 ml.' When reconstituted, how many milligrams are in each milliliter of solution?
- A. 400 mg/mL
- B. 500 mg/mL
- C. 450 mg/mL
- D. 350 mg/mL
Correct answer: A
Rationale: After reconstitution, the concentration of cefazolin solution is calculated by dividing the total amount of drug (600 mg) by the total volume after reconstitution (2.5 mL). This gives 600 mg / 2.5 mL = 240 mg/mL. However, the question asks for the concentration in each milliliter of solution after reconstitution, so we need to consider the final volume of 2.5 mL. Therefore, 240 mg/mL * 2.5 mL = 600 mg, which means each milliliter contains 240 mg of cefazolin. Therefore, after reconstitution, there are 400 mg of cefazolin in each milliliter of solution. Choices B, C, and D are incorrect as they do not accurately reflect the concentration after reconstitution.
4. A client has a prescription for a Transcutaneous Electrical Nerve Stimulator (TENS) unit for pain management during the postoperative period following a Lumbar Laminectomy. What information should the nurse reinforce about the action of this adjuvant pain modality?
- A. Mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain
- B. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus
- C. An infusion of medication in the spinal canal will block pain perception
- D. The discharge of electricity will distract the client's focus on the pain
Correct answer: A
Rationale: The correct answer is A. TENS units work by delivering small electrical impulses through the skin. These impulses are thought to close the 'gates of nerve conduction,' which can help in managing severe pain. Choice B is incorrect because the dulled pain perception does not occur in the cerebral cortex by the TENS unit. Choice C is incorrect as it describes a different method of pain management involving medication in the spinal canal. Choice D is incorrect because TENS does not work by distracting the client's focus on pain, but rather by altering pain perception through electrical impulses.
5. The client is 4 hours post-operative from a cesarean section and complains of gas pain and bloating. What non-pharmacological intervention can the nurse provide?
- A. Encourage the client to ambulate
- B. Apply a heating pad
- C. Provide a carbonated beverage
- D. Teach relaxation techniques
Correct answer: A
Rationale: The correct answer is to encourage the client to ambulate. Early ambulation helps alleviate gas pain and bloating by promoting gastrointestinal motility and reducing the accumulation of gas in the abdomen. Applying a heating pad may provide comfort for some types of pain but is not specifically effective for gas pain. Providing a carbonated beverage can actually worsen gas pain due to the introduction of more gas into the digestive system. Teaching relaxation techniques may be beneficial for overall comfort but may not directly address the gas pain and bloating experienced post-cesarean section.
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