HESI LPN
Pediatric HESI 2023
1. When assessing a child with suspected nephrotic syndrome, what clinical manifestation is the nurse likely to observe?
- A. Jaundice
- B. Edema
- C. Hypertension
- D. Polyuria
Correct answer: B
Rationale: Edema is a hallmark clinical manifestation of nephrotic syndrome. In nephrotic syndrome, there is increased glomerular permeability leading to the loss of proteins, particularly albumin, in the urine. This results in decreased oncotic pressure, leading to fluid shifting into the interstitial spaces and causing edema. Jaundice (Choice A) is not a typical clinical manifestation of nephrotic syndrome. Hypertension (Choice C) is more commonly associated with conditions like glomerulonephritis. Polyuria (Choice D) is not a primary symptom of nephrotic syndrome; instead, patients may have reduced urine output due to fluid retention from edema.
2. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct answer: A
Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
3. What should the nurse recommend to reduce the risk of sudden infant death syndrome (SIDS) in a 6-month-old infant?
- A. Place the infant on their back to sleep
- B. Use a pacifier during sleep
- C. Have the infant sleep on their side
- D. Keep the infant's room cool
Correct answer: A
Rationale: Placing the infant on their back to sleep is the correct recommendation to reduce the risk of sudden infant death syndrome (SIDS). This sleep position has been shown to significantly decrease the incidence of SIDS. Using a pacifier during sleep (Choice B) can also help reduce the risk, but it is secondary to the back sleeping position. Having the infant sleep on their side (Choice C) is not recommended, as it increases the risk of SIDS. Keeping the infant's room cool (Choice D) may provide a comfortable sleeping environment but does not directly reduce the risk of SIDS.
4. On the third day of hospitalization, the nurse observes that a 2-year-old toddler who had been screaming and crying inconsolably begins to regress and is now lying quietly in the crib with a blanket. What stage of separation anxiety has developed?
- A. Denial
- B. Despair
- C. Mistrust
- D. Rejection
Correct answer: B
Rationale: The correct answer is B: Despair. In separation anxiety, the stage of despair is characterized by regression and withdrawal after an initial period of protest. The child may become quiet and appear to accept the separation, but this is actually a sign of deeper distress. Choice A, Denial, is incorrect as it refers to refusing to believe or accept the reality of the separation. Choice C, Mistrust, is incorrect as it pertains to a lack of trust in others, not a stage of separation anxiety. Choice D, Rejection, is incorrect as it involves pushing others away and not related to the described behavior of the toddler in the scenario.
5. Congenital heart defects have traditionally been divided into acyanotic or cyanotic defects. Based on the nurse’s knowledge of congenital heart defects, this system in clinical practice is
- A. helpful because it explains the hemodynamics involved
- B. helpful because children with cyanotic defects are easily identified
- C. problematic because cyanosis is rarely present in children
- D. problematic because children with acyanotic heart defects may develop cyanosis
Correct answer: D
Rationale: The classification system of congenital heart defects into acyanotic or cyanotic defects is problematic because children with acyanotic heart defects may develop cyanosis, complicating the differentiation. Cyanosis can occur in some acyanotic defects due to various reasons such as right-to-left shunting or decreased pulmonary blood flow, making the classification based solely on cyanosis misleading. Choice A is incorrect because while the classification may involve hemodynamics, the main issue lies in the potential for acyanotic defects to develop cyanosis. Choice B is incorrect as the ease of identifying children with cyanotic defects does not address the main problem with the classification system. Choice C is also incorrect as the presence of cyanosis is not the only factor determining the classification's validity.
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