HESI LPN
Pediatric Practice Exam HESI
1. Why might a healthcare provider question a health care provider's order for a tap water enema for a 6-month-old infant with suspected Hirschsprung disease?
- A. The result could lead to loss of necessary nutrients.
- B. It could cause a fluid and electrolyte imbalance.
- C. It could increase the fear of intrusive procedures.
- D. The result could cause shock from a sudden drop in temperature.
Correct answer: B
Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas are unlikely to lead to loss of necessary nutrients. Choice C is incorrect as it does not directly relate to the physiological risk of tap water enemas. Choice D is incorrect as shock from a sudden drop in temperature is not a common concern with tap water enemas.
2. An 18-month-old was brought to the emergency department by her mother, who states, 'I think she broke her arm.' The child is sent for a radiograph to confirm the fracture. Additional assessment of the child leads the nurse to suspect possible child abuse. Which type of fracture would the radiograph most likely reveal?
- A. Plastic deformity
- B. Buckle fracture
- C. Spiral fracture
- D. Greenstick fracture
Correct answer: C
Rationale: A spiral fracture is a type of fracture often associated with twisting injuries and can raise suspicion of child abuse. This type of fracture is caused by a twisting force applied to a bone. Plastic deformity is not typically associated with fractures but refers to the ability of a material to change shape and retain that shape. A buckle fracture, also known as a torus fracture, is an incomplete break in a bone commonly seen in children. A greenstick fracture is an incomplete fracture where the bone is bent and partially broken, more commonly seen in children due to their bone flexibility.
3. What should be included in the teaching plan for parents of an infant diagnosed with phenylketonuria (PKU)?
- A. Mental retardation occurs if PKU is untreated.
- B. Testing for PKU is done immediately after birth.
- C. Treatment for PKU includes lifelong dietary management.
- D. PKU is transmitted by an autosomal recessive gene.
Correct answer: A
Rationale: The correct answer is A: 'Mental retardation occurs if PKU is untreated.' Phenylketonuria (PKU) is a metabolic disorder that, if left untreated with dietary management, can lead to severe mental retardation due to the accumulation of phenylalanine. It is crucial for parents to understand the potential consequences of untreated PKU to emphasize the importance of early and consistent treatment. Choice B is incorrect because testing for PKU is typically done through newborn screening shortly after birth, not immediately. Choice C is incorrect as treatment for PKU primarily involves strict dietary management that restricts phenylalanine intake, not lifelong medications. Choice D is incorrect as PKU is inherited in an autosomal recessive pattern, meaning that both parents must pass on a mutated gene for the disorder to manifest.
4. What behavior is essential for preventing in a child postoperatively after undergoing heart surgery to repair defects associated with tetralogy of Fallot?
- A. Crying
- B. Coughing
- C. Straining at stool
- D. Unnecessary movement
Correct answer: C
Rationale: Preventing straining at stool is crucial postoperatively after heart surgery for tetralogy of Fallot to avoid increasing intrathoracic pressure and placing stress on the surgical site. This can help prevent complications and promote faster healing. While crying, coughing, and unnecessary movement are common postoperative behaviors, they are not specifically linked to worsening outcomes in this context. Straining at stool is particularly emphasized due to its potential to impact the surgical site and overall recovery process.
5. A parent tearfully tells a nurse, 'They think our child is developmentally delayed. We are thinking about investigating a preschool program for cognitively impaired children.' What is the nurse’s most appropriate response?
- A. Praise the parent for the decision and encourage the plan.
- B. Ask for more specific information related to the developmental delays.
- C. Advise the parent to have the healthcare provider help choose an appropriate program.
- D. Explain that this may be a premature action and the developmental delays could disappear.
Correct answer: B
Rationale: The most appropriate response for the nurse in this situation is to ask for more specific information related to the developmental delays. By seeking additional details, the nurse can better understand the situation, offer appropriate support, and provide guidance tailored to the child's specific needs. Praising the parent or encouraging the plan without understanding the full context may not be beneficial. Advising the parent to have the healthcare provider help choose a program assumes the parent has not already involved the healthcare provider, which may not be the case. Explaining that the developmental delays could disappear is not appropriate as it may give false hope or minimize the parent's concerns.
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