HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. When assessing a client with acute asthma, the nurse is most likely to obtain which finding?
- A. Pursed lip breathing and clubbing of fingers
- B. Fever and a high-pitched inspiratory stridor
- C. A short expiratory phase and hemoptysis
- D. Cough and musical breath sounds on expiration
Correct answer: D
Rationale: When assessing a client with acute asthma, a cough and wheezing or musical breath sounds on expiration are typical findings. Pursed lip breathing and clubbing of fingers (choice A) are not common in acute asthma but could be seen in chronic respiratory conditions. Fever and high-pitched inspiratory stridor (choice B) are more indicative of croup or epiglottitis. A short expiratory phase and hemoptysis (choice C) are not typical findings in acute asthma.
3. In developing a plan of care for a client admitted to a mental health unit after attempting suicide by taking a handful of medications, which goal has the highest priority?
- A. Signs a no-self-harm contract
- B. Sleep for at least 6 hours nightly
- C. Attends group therapy every day
- D. Verbalizes a positive self-image
Correct answer: A
Rationale: The correct answer is A: Signs a no-self-harm contract. Ensuring the client’s immediate safety by having them commit to not engaging in self-harm is the highest priority after a suicide attempt. This measure aims to prevent further harm to the client. While sleep, group therapy, and self-image are important aspects of care, they are secondary to ensuring the client's safety in the immediate aftermath of a suicide attempt. Prioritizing the establishment of a no-self-harm contract creates a foundation for addressing other therapeutic goals in the client's care plan.
4. A female client has been taking a high dose of prednisone, a corticosteroid, for several months. After stopping the medication abruptly, the client reports feeling very tired. Which nursing intervention is most important for the nurse to implement?
- A. Measure vital signs
- B. Auscultate breath sounds
- C. Palpate the abdomen
- D. Observe the skin for bruising
Correct answer: A
Rationale: Discontinuing prednisone abruptly can lead to adrenal insufficiency, which may result in symptoms such as fatigue. Monitoring vital signs is crucial in this situation to assess for potential complications like hypotension, which can be a sign of adrenal insufficiency. Auscultating breath sounds (choice B) is important but not the priority when considering the risk of adrenal insufficiency. Palpating the abdomen (choice C) and observing the skin for bruising (choice D) are not directly related to the potential complications of abruptly stopping prednisone.
5. A 9-year-old received a short arm cast for a right radius. To relieve itching under the child’s cast, which instructions should the nurse provide to the parents?
- A. Blow cool air from a hair dryer under the cast
- B. Twist the cast back and forth
- C. Shake powder into the cast
- D. Push a pencil under the cast edge
Correct answer: A
Rationale: Blowing cool air from a hair dryer under the cast is a safe method to relieve itching without damaging the cast or causing injury. The air helps to dry out the moisture that is causing the itching. Twisting the cast back and forth (choice B) can create pressure points and discomfort for the child. Shaking powder into the cast (choice C) can introduce foreign material that may cause skin irritation. Pushing a pencil under the cast edge (choice D) can injure the child's skin or even dislodge the cast.
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