HESI LPN
CAT Exam Practice Test
1. In Duchenne muscular dystrophy, if a child has a Gower sign, what behavior should the nurse expect the child to exhibit?
- A. Stands from sitting on the floor by using hands to walk up legs
- B. Exhibits muscular atrophy of upper and lower extremities
- C. Is unable to stand because of contractures of both hips
- D. Walks with an unsteady gait and slaps feet on the floor
Correct answer: A
Rationale: The Gower sign is a characteristic finding in Duchenne muscular dystrophy where a child uses hands to walk up the legs when standing from a sitting position due to proximal muscle weakness. This behavior is indicative of the child trying to compensate for weak hip and thigh muscles. Choices B, C, and D are incorrect because they do not describe the specific behavior associated with the Gower sign. Muscular atrophy, contractures of both hips, and an unsteady gait with foot slapping are not directly related to the Gower sign.
2. A male client is returned to the surgical unit following a left nephrectomy and is medicated with morphine. His dressing has a small amount of bloody drainage, and a Jackson-Pratt bulb surgical drainage device is in place. Which intervention is most important for the nurse to include in this client's plan of care?
- A. Monitor urine output hourly
- B. Assess for back muscle aches
- C. Record drainage from the drain
- D. Obtain body weight daily
Correct answer: C
Rationale: The most important intervention for the nurse to include in the client's plan of care following a left nephrectomy with a Jackson-Pratt bulb in place is to record drainage from the drain. Monitoring the drainage is crucial as it helps assess for potential complications such as hemorrhage, infection, or other issues related to the surgical site. Assessing urine output is important post-nephrectomy but not as critical as directly monitoring the drainage. Assessing for back muscle aches may be relevant for pain management but not as crucial as monitoring the drainage. Obtaining body weight daily is not directly related to assessing the surgical drain output and is less critical in this scenario.
3. The healthcare provider prescribed furosemide for a 4-year-old child with a ventricular septal defect. Which outcome indicates to the nurse that this pharmacological intervention was effective?
- A. Urine specific gravity changing from 1.021 to 1.031
- B. Daily weight decrease of 2 pounds (0.9 kg)
- C. Blood urea nitrogen (BUN) increasing from 8 to 12 mg/dl (2.9 to 4.3)
- D. Urinary output decreasing by 5 ml/hour
Correct answer: B
Rationale: The correct answer is B. A daily weight decrease of 2 pounds (0.9 kg) is the most appropriate outcome to indicate the effectiveness of furosemide in a child with a ventricular septal defect. Furosemide is a diuretic medication that helps reduce fluid retention. Therefore, a decrease in weight reflects a reduction in fluid volume, which is the desired effect of furosemide. Choices A, C, and D are incorrect because changes in urine specific gravity, blood urea nitrogen (BUN) levels, and urinary output do not directly reflect the effectiveness of furosemide in this context.
4. The nurse is assigned to care for four surgical clients. After receiving report, which client should the nurse see first?
- A. An older client receiving packed RBCs on the third day postoperatively for colon resection
- B. An older client with continuous bladder irrigation who is 2 days postoperatively for bladder surgery
- C. An adult one day postoperatively from laparoscopic cholecystectomy requesting pain medication
- D. An adult in Buck’s traction, scheduled for hip arthroplasty within the next 12 hours
Correct answer: B
Rationale: The correct answer is B because the client with continuous bladder irrigation post-bladder surgery is at risk for complications like infection or bleeding. This client requires immediate attention to assess for any signs of complications such as urinary retention, hemorrhage, or infection. Choices A, C, and D have less urgent needs compared to a client with continuous bladder irrigation, which requires priority assessment.
5. 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.
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