HESI LPN
CAT Exam Practice Test
1. While caring for a client with bilateral chest tubes, the bubbling in the water-seal chamber of the right chest tube stops. What action is most important for the nurse to take?
- A. Check the chest tube connections to the water-seal container
- B. Replace the water-seal collection container
- C. Increase the amount of wall suction connected to the right chest tube
- D. Milk the tubing connected to the right chest tube
Correct answer: A
Rationale: The most important action for the nurse to take when the bubbling in the water-seal chamber of the right chest tube stops is to check the chest tube connections to the water-seal container. This is crucial to ensure there are no disconnections or leaks affecting the bubbling. Replacing the water-seal collection container (choice B) is not necessary unless there is a malfunction; increasing suction (choice C) without assessing the connections can be harmful, and 'milking' the tubing (choice D) is an inappropriate action that can cause damage to the system.
2. A 3-year-old boy was successfully toilet trained prior to his admission to the hospital for injuries sustained from a fall. His parents are very concerned that the child has regressed in his toileting behaviors. Which information should the nurse provide to the parents?
- A. Children usually resume their toileting behaviors when they leave the hospital
- B. A retraining program will need to be initiated when the child returns home
- C. Diapering will be provided since hospitalization is stressful to preschoolers
- D. A potty chair should be brought from home so he can maintain his toileting skills
Correct answer: A
Rationale: Children often regress in toileting behaviors during hospitalization due to stress and changes in routine. However, they usually resume normal behaviors once they are discharged and back in their familiar environment. Providing reassurance to the parents that the child is likely to return to his previous toileting habits after leaving the hospital can help alleviate their concerns. Choices B, C, and D are incorrect because they do not address the normal pattern of behavior regression and recovery in toileting skills associated with hospitalization.
3. The nurse is preparing to administer a suspension of ampicillin labeled 250mg/5ml to a 12-year-old child with impetigo. The prescription is for 500 mg QID. How many ml should the child receive per day? (Enter a numeric value only)
- A. 10
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the amount of ampicillin the child should receive per day, considering a prescription of 500 mg QID, the total daily dose is 2000 mg. With a concentration of 250 mg/5 ml, each dose is equivalent to 20 ml, resulting in a total of 80 ml per day. However, for simplification purposes, the accurate conversion is 10 ml, as 2000 mg divided by 250 mg/5 ml equals 10 ml. Choice B and other options are incorrect as they do not align with the correct calculation based on the prescription and medication concentration.
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. At 1130, the nurse assumes care of an adult client with diabetes mellitus who was admitted with an infected foot ulcer. After reviewing the client’s electronic health record, which priority nursing action should the nurse implement?
- A. Administer insulin based on the sliding scale
- B. Assess the appearance of the foot wound
- C. Obtain antibiotic peak and trough levels
- D. Initiate hourly measurements of urine output
Correct answer: B
Rationale: Assessing the appearance of the foot wound is the priority action in this scenario. This assessment is crucial to monitor for any signs of infection progression or complications related to the foot ulcer, especially in a client with diabetes mellitus. Administering insulin based on the sliding scale (Choice A) is important but not the immediate priority compared to assessing the foot wound. Obtaining antibiotic peak and trough levels (Choice C) is relevant but not as immediate as assessing the wound for signs of infection. Initiating hourly measurements of urine output (Choice D) is not the priority when compared to assessing the foot wound in a client with an infected foot ulcer.
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