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. An adolescent male client is admitted to the hospital. Based on Erikson’s theory of psychosocial development, which nursing intervention best assists this adolescent’s adjustment to his hospital stay?
- A. Invite him to participate in the evening group activity
- B. Schedule frequent private phone calls to his parents
- C. Provide access to a variety of video games in his room
- D. Encourage him to learn his way around the hospital
Correct answer: A
Rationale: Inviting the adolescent to participate in group activities aligns with Erikson's theory of psychosocial development, specifically the stage of developing social relationships. By engaging in group activities, the adolescent can interact with peers, fostering social skills and aiding in adjustment to the hospital environment. Choice B is incorrect as excessive reliance on phone calls to parents may hinder the adolescent's autonomy and independence, which are crucial aspects of Erikson's theory for this age group. Choice C, providing access to video games, while potentially offering entertainment, does not directly address the need for social interaction and relationship-building. Choice D, encouraging the adolescent to learn his way around the hospital, is important for familiarity but may not directly address the need for social interaction and adjustment in the hospital setting.
3. A client who had an intraosseous (IO) cannula placed by the healthcare provider for emergent fluid resuscitation is complaining of severe pain and numbness below the IO site. The skin around the site is pale and edematous. What action should the nurse take first?
- A. Discontinue the IO infusion
- B. Administer an analgesic via the IO site
- C. Elevate the extremity with the IO site
- D. Notify the healthcare provider
Correct answer: A
Rationale: The correct action for the nurse to take first is to discontinue the IO infusion. The client's symptoms of severe pain, numbness, pale skin, and edema below the IO site suggest a complication, such as extravasation or compartment syndrome. By discontinuing the infusion, further harm can be prevented. Administering an analgesic via the IO site or elevating the extremity would not address the underlying issue and could potentially worsen the condition. Notifying the healthcare provider can be done after stopping the infusion to seek further guidance or intervention.
4. Identify the placement of the stapes footplate into the bony labyrinth.
- A. Fenestra vestibuli
- B. Fenestra cochleae
- C. Tympanic membrane
- D. Round window
Correct answer: A
Rationale: The correct answer is A: Fenestra vestibuli. The stapes footplate is placed into the fenestra vestibuli of the bony labyrinth. This structure is also known as the oval window and is located at the junction of the middle ear and inner ear. Choice B, Fenestra cochleae, is incorrect as this opening is also known as the round window and is located near the base of the cochlea. Choice C, Tympanic membrane, is incorrect as it is also known as the eardrum and separates the external ear from the middle ear. Choice D, Round window, is incorrect as it is the opening covered by the secondary tympanic membrane and is important for the dissipation of sound waves in the cochlea.
5. The nurse has explained safety precautions and infant care to a primigravida mother and observes the mother as she gives care to her newborn during the first two days of rooming-in. Which action indicates the mother understands the instruction?
- A. Aspirates the newborn’s nares using a syringe
- B. Applies a dressing to the cord after the newborn’s bath
- C. Breastfeeds the infant every hour during the night
- D. Positions the infant supine in the crib to sleep
Correct answer: D
Rationale: Positioning the infant supine in the crib to sleep is the correct action that indicates the mother understands the instruction. This position is recommended to reduce the risk of Sudden Infant Death Syndrome (SIDS). Choice A is incorrect as it is not a routine or recommended practice to aspirate the newborn’s nares using a syringe without a specific medical indication. Choice B is incorrect because applying a dressing to the cord after the newborn's bath is not a standard care practice. Choice C is incorrect because breastfeeding every hour during the night is excessive and not a recommended feeding schedule for a newborn.
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