HESI LPN
Pediatrics HESI 2023
1. A healthcare provider is assessing a 2-year-old child with suspected Down syndrome. What characteristic physical feature is the healthcare provider likely to observe?
- A. Epicanthal folds
- B. Webbed neck
- C. Enlarged head
- D. Polydactyly
Correct answer: A
Rationale: Epicanthal folds are a common physical feature seen in individuals with Down syndrome. These are folds of skin that cover the inner corners of the eyes. Webbed neck (Choice B) is associated with Turner syndrome, not Down syndrome. Enlarged head (Choice C) is not a typical physical characteristic of Down syndrome. Polydactyly (Choice D) is the presence of extra fingers or toes, which is not specifically related to Down syndrome.
2. A 4-year-old child is admitted to the hospital with a diagnosis of epiglottitis. What is the priority nursing intervention?
- A. Administer antibiotics
- B. Provide humidified oxygen
- C. Keep the child NPO
- D. Position the child upright
Correct answer: C
Rationale: The priority nursing intervention for a 4-year-old child admitted to the hospital with epiglottitis is to keep the child NPO (nothing by mouth). Epiglottitis is a serious condition that can lead to airway obstruction. Keeping the child NPO helps prevent further compromise of the airway and reduces the risk of aspiration. Administering antibiotics may be necessary but ensuring the airway is not compromised takes precedence. Providing humidified oxygen is important for respiratory support, but not the priority over maintaining a patent airway. Positioning the child upright can help with breathing and comfort, but it does not directly address the immediate risk of airway compromise associated with epiglottitis.
3. 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: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.
4. The nurse is caring for a 10-year-old with Duchenne muscular dystrophy. As part of the plan of care, the nurse focuses on maintaining his cardiopulmonary function. Which intervention would the nurse implement to best promote maximum chest expansion?
- A. Deep-breathing exercises
- B. Upright positioning
- C. Coughing
- D. Chest percussion
Correct answer: B
Rationale: Upright positioning is the most appropriate intervention to promote maximum chest expansion in a child with Duchenne muscular dystrophy. By keeping the child in an upright position, lung expansion is maximized, which improves breathing efficiency. Deep-breathing exercises may help with overall lung function but do not directly promote chest expansion. Coughing and chest percussion are more related to airway clearance and do not specifically address maximizing chest expansion.
5. A nurse is teaching a class about immunizations to members of a grammar school’s Parent-Teachers Association. Which childhood disease is the nurse discussing when explaining that it is a viral disease that starts with malaise and a highly pruritic rash that begins on the abdomen, spreads to the face and proximal extremities, and can result in grave complications?
- A. Rubella
- B. Rubeola
- C. Chickenpox
- D. Scarlet fever
Correct answer: C
Rationale: The correct answer is C, Chickenpox (varicella). Chickenpox is a viral disease characterized by a highly pruritic rash that typically starts on the abdomen and then spreads to other parts of the body, including the face and proximal extremities. It can lead to complications such as pneumonia and encephalitis. Rubella (German measles) presents with a mild rash and swollen lymph nodes; Rubeola (measles) also presents with a rash but starts on the face before spreading downwards; Scarlet fever is caused by Group A Streptococcus bacteria and is characterized by a rash, fever, and sore throat.
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