HESI LPN
HESI CAT Exam 2022
1. When caring for a client with acute respiratory distress syndrome (ARDS), why does the nurse elevate the head of the bed 30 degrees?
- A. To reduce abdominal pressure on the diaphragm
- B. To promote retraction of the intercostal accessory muscles of respiration
- C. To promote bronchodilation and effective airway clearance
- D. To decrease pressure on the medullary center which stimulates breathing
Correct answer: A
Rationale: Elevating the head of the bed to 30 degrees is done to reduce abdominal pressure on the diaphragm, aiding in lung expansion and oxygenation. This position helps improve respiratory mechanics by allowing the diaphragm to move more effectively. Choice B is incorrect as elevating the head of the bed does not directly promote retraction of the intercostal accessory muscles of respiration. Choice C is incorrect because although elevating the head of the bed can assist with airway clearance, its primary purpose in ARDS is to decrease pressure on the diaphragm. Choice D is incorrect because reducing pressure on the medullary center is not the main goal of elevating the head of the bed; the focus is on enhancing lung function and oxygen exchange.
2. Following rectal surgery, a female client is very anxious about the pain she may experience during defecation. The nurse should collaborate with the healthcare provider to administer which type of medication?
- A. Bulk-forming agent
- B. Antianxiety agent
- C. Stool softener
- D. Stimulant cathartic
Correct answer: C
Rationale: After rectal surgery, a stool softener is the most appropriate medication to help prevent pain and straining during defecation. Stool softeners work by increasing the water content of the stool, making it easier to pass without discomfort. Bulk-forming agents (Choice A) help add mass to the stool but may not address the immediate post-operative discomfort. Antianxiety agents (Choice B) would address the anxiety but not the physical discomfort. Stimulant cathartics (Choice D) are not recommended after rectal surgery as they can cause cramping and increased bowel movements, potentially exacerbating pain.
3. The nurse is measuring the output of an infant admitted for vomiting and diarrhea. During a 12-hour shift, the infant drinks 4 ounces of Pedialyte, vomits 25 ml, and voids twice. The dry diaper weighs 105 grams. Which computer documentation should the nurse enter in the infant’s record?
- A. Subtract vomitus from 120 ml Pedialyte, then document 95 ml oral intake.
- B. Compare the difference between the infant’s current weight and admission weight.
- C. Document on the flow sheet that the infant voided twice and vomited 25 ml.
- D. Calculate the difference in wet and dry diapers and document 80 ml urine.
Correct answer: C
Rationale: The correct answer is to document on the flow sheet that the infant voided twice and vomited 25 ml. This choice accurately reflects the need for accurate documentation of intake and output, essential for monitoring the infant's hydration status. Choice A is incorrect because the oral intake should not be calculated by subtracting vomitus from the oral intake. Choice B is incorrect because it does not address the specific documentation related to the infant's output. Choice D is incorrect as it focuses on calculating urine output based on diaper weight, which is not the primary concern in this scenario.
4. A male client approaches the nurse with an angry expression on his face and raises his voice, saying, “My roommate is the most selfish, self-centered, angry person I have ever met. If he loses his temper one more time with me, I am going to punch him out.” The nurse recognizes that the client is using which defense mechanism?
- A. Denial
- B. Splitting
- C. Projection
- D. Rationalization
Correct answer: C
Rationale: The client is projecting his feelings of anger and frustration onto his roommate, attributing his own feelings to the other person. Projection is a defense mechanism where individuals attribute their thoughts, feelings, or motives onto another person. In this scenario, the client is displacing his anger onto his roommate, thereby using projection as a defense mechanism. Denial (choice A) is refusing to acknowledge an aspect of reality. Splitting (choice B) involves viewing people as all good or all bad. Rationalization (choice D) is creating logical explanations to justify unacceptable behavior.
5. The nurse is evaluating a client who has had a mastectomy and is experiencing pain and swelling in the arm on the affected side. What action should the nurse take?
- A. Assess for signs of lymphedema
- B. Encourage the client to perform arm exercises
- C. Provide pain relief through medication
- D. Recommend wearing a compression sleeve
Correct answer: A
Rationale: Assessing for signs of lymphedema is crucial in this situation as it is a common complication following mastectomy. Lymphedema presents as swelling and pain in the affected arm due to compromised lymphatic drainage. By assessing for lymphedema, the nurse can identify the condition early and implement appropriate interventions such as compression sleeves, manual lymphatic drainage, and exercises. Encouraging arm exercises (Choice B) may exacerbate the symptoms if lymphedema is present. While providing pain relief through medication (Choice C) is important, assessing for the underlying cause of pain and swelling takes precedence. Recommending a compression sleeve (Choice D) may be suitable but should come after a thorough assessment for lymphedema to ensure the most effective management plan.
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