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. The parents of a child who had surgical repair of a myelomeningocele are being taught how to change an occlusive dressing on the child’s back. Which statement by the parents indicates that they understand this procedure?
- A. When changing the dressing, the tape should be removed slowly to prevent trauma to the skin
- B. To prevent infection, the dressing should be kept dry to avoid excess moisture
- C. The skin incision should be kept moist to promote healing and prevent dryness
- D. The incision should be protected from fecal contamination by an intact dressing
Correct answer: D
Rationale: The correct answer is D because protecting the incision from fecal contamination is essential to prevent infection and promote healing in a child with a myelomeningocele. This is crucial as fecal matter can introduce harmful bacteria to the wound. Choice A is incorrect as removing the tape slowly to prevent trauma to the skin is a general guideline but not specific to preventing infection. Choice B is incorrect because keeping the dressing dry can lead to complications as the wound needs a moist environment to heal properly. Choice C is incorrect as keeping the skin incision moist may promote infection and delay healing, making it an incorrect statement for postoperative care.
3. What explanation is best for the nurse to provide a client who asks the purpose of using the log-rolling technique for turning?
- A. Working together can decrease the risk of back injury.
- B. The technique is intended to maintain straight spinal alignment.
- C. Using two or three people increases client safety.
- D. Turning instead of pulling reduces the likelihood of skin damage.
Correct answer: B
Rationale: The correct answer is B: 'The technique is intended to maintain straight spinal alignment.' Log-rolling is a technique used to move a person as a single unit to maintain the alignment of the spinal column. This is crucial to prevent spinal cord injury, especially in clients with suspected spine fractures. Choice A is incorrect because log-rolling focuses on spinal alignment, not just decreasing back injury risks. Choice C is incorrect because the number of people involved is not the primary purpose of log-rolling, which is maintaining spinal alignment. Choice D is incorrect because while turning instead of pulling may help prevent skin damage, the primary goal of log-rolling is to protect the spine, not the skin.
4. An older adult male is admitted with complications related to chronic obstructive pulmonary disease (COPD). He reports progressive dyspnea that worsens on exertion, and his weakness has increased over the past month. The nurse notes that he has dependent edema in both lower legs. Based on these assessment findings, which dietary instruction should the nurse provide?
- A. Restrict daily fluid intake
- B. Eat meals at the same time daily
- C. Maintain a low-protein diet
- D. Limit the intake of high-calorie foods
Correct answer: A
Rationale: Dependent edema in both lower legs is a sign of fluid overload, which can exacerbate dyspnea in patients with COPD. Restricting daily fluid intake can help reduce the edema and alleviate breathing difficulties. A low-protein diet is not necessary unless there are specific renal concerns. Eating meals at the same time daily or limiting high-calorie foods is not directly associated with addressing fluid overload and dyspnea in COPD patients.
5. A client with chronic kidney disease has an arteriovenous (AV) fistula in the left forearm. Which observation by the nurse indicates that the fistula is patent?
- A. Distended, tortuous veins in the left hand
- B. The left radial pulse is 2+ bounding
- C. Auscultation of a thrill on the left forearm
- D. Assessment of a bruit on the left forearm
Correct answer: C
Rationale: Auscultation of a thrill on the left forearm is the correct observation indicating that the AV fistula is patent. A thrill is a palpable vibration or buzzing sensation felt over the fistula, indicating the presence of blood flow. Choices A, B, and D do not directly assess the patency of the fistula. Distended, tortuous veins in the left hand may indicate venous hypertension; a bounding radial pulse could suggest increased blood flow through an artery, but it does not confirm fistula patency; assessment of a bruit indicates turbulent blood flow, but it does not confirm patency.
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