HESI LPN
CAT Exam Practice Test
1. When a UAP reports to the charge nurse that a client has a weak pulse with a rate of 44 beats per minute, what action should the charge nurse implement?
- A. Instruct the UAP to count the client's apical pulse rate for sixty seconds.
- B. Determine if the UAP also measured the client's capillary refill time.
- C. Assign a practical nurse (LPN) to determine if an apical radial pulse deficit is present.
- D. Notify the health care provider of the abnormal pulse rate and pulse volume.
Correct answer: D
Rationale: The correct action for the charge nurse to implement is to notify the health care provider of the abnormal pulse rate and pulse volume. A weak pulse with bradycardia (pulse rate of 44 beats per minute) requires immediate follow-up to investigate potential underlying issues. In this situation, it is crucial to involve the healthcare provider for further assessment and intervention. Instructing the UAP to count the client's apical pulse rate for sixty seconds (Choice A) may delay necessary actions. Determining capillary refill time (Choice B) is not directly related to addressing a weak pulse, and assigning an LPN to assess an apical radial pulse deficit (Choice C) is not as urgent as involving the healthcare provider.
2. The nurse is calculating the one-minute Apgar score for a newborn male infant and determines that his heart rate is 150 beats/minute, he has a vigorous cry, his muscle tone is good with total flexion, he has quick reflex irritability, and his color is dusky and cyanotic. What Apgar score should the nurse assign to the infant?
- A. 8
- B. 9
- C. 6
- D. 7
Correct answer: A
Rationale: The correct answer is A: 8. The Apgar score is calculated based on five parameters: heart rate, respiratory effort, muscle tone, reflex irritability, and color. In this case, the infant has a good heart rate, vigorous cry, good muscle tone, and quick reflex irritability, which would total to 8. The only factor affecting the score is the cyanotic color, which could indicate potential respiratory or circulatory issues. Choices B, C, and D are incorrect as they do not reflect the overall assessment provided in the scenario.
3. In what order should the nurse assess a lethargic one-hour-old infant brought to the nursery?
- A. Heel stick
- B. Respirations
- C. Heart rate
- D. Temperature
Correct answer: D
Rationale: When assessing a lethargic one-hour-old infant, the nurse should prioritize assessing the most critical parameters first. Temperature and heart rate are vital signs that provide immediate information about the infant's well-being. Therefore, the correct order of assessment should be temperature, heart rate, respirations, and then a heel stick. Temperature is crucial to determine if the infant is hypothermic or hyperthermic, while heart rate gives insight into the circulatory system's function. Respirations follow to evaluate the infant's breathing pattern. Lastly, the heel stick is important for certain screenings but is not as urgent as evaluating temperature and heart rate in a lethargic infant.
4. A nurse is preparing to administer an intramuscular (IM) injection to a client. What is the most appropriate site to use for an IM injection in an adult?
- A. Dorsal gluteal muscle
- B. Vastus lateralis muscle
- C. Rectus femoris muscle
- D. Deltoid muscle
Correct answer: B
Rationale: The correct answer is B: Vastus lateralis muscle. The vastus lateralis muscle is a recommended site for IM injections in adults due to its size and accessibility. The dorsal gluteal muscle is not recommended for IM injections in adults due to the proximity to major nerves and blood vessels, increasing the risk of injury. The rectus femoris muscle is not a common site for IM injections in adults. The deltoid muscle is typically used for IM injections in small-volume medications or vaccines, especially in adults.
5. A client with osteoporosis related to long-term corticosteroid therapy receives a prescription for calcium carbonate. Which client’s serum laboratory value requires intervention by the nurse?
- A. Total calcium 9 mg/dl (2.25 mmol/L SI)
- B. Creatinine 4 mg/dl (354 micromol/L SI)
- C. Phosphate 4 mg/dl (1.293 mmol/L SI)
- D. Fasting glucose 95 mg/dl (5.3 mmol/L SI)
Correct answer: B
Rationale: An elevated creatinine level indicates possible renal impairment, which requires intervention. High creatinine levels are associated with decreased kidney function, and in this case, it suggests potential renal issues due to long-term corticosteroid therapy. Monitoring renal function is crucial in clients with osteoporosis on corticosteroid therapy to prevent further complications. Total calcium levels within the normal range are suitable for a client with osteoporosis receiving calcium carbonate. Phosphate and fasting glucose levels do not directly indicate renal impairment in this scenario.
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