HESI LPN
Pediatric HESI Practice Questions
1. The nurse is caring for an 8-year-old girl with an endocrine disorder involving the posterior pituitary gland. What care would the nurse expect to implement?
- A. Instructing the parents to report adverse reactions to the growth hormone treatment
- B. Teaching the parents how to administer desmopressin acetate
- C. Informing the parents that treatment continues during puberty
- D. Educating the parents to report signs of acute adrenal crisis
Correct answer: B
Rationale: For a child with a disorder of the posterior pituitary gland, desmopressin acetate is a medication commonly used to manage the condition by replacing the antidiuretic hormone. Instructing the parents on how to administer desmopressin acetate correctly is essential for the child's care. Choice A is incorrect because growth hormone treatment is not typically used for posterior pituitary disorders. Choice C is incorrect as treatment for this condition usually continues beyond puberty. Choice D is incorrect as acute adrenal crisis is not directly related to a disorder of the posterior pituitary gland.
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 explanation should the nurse give a parent about the purpose of a tetanus toxoid injection for their child?
- A. Passive immunity is conferred temporarily.
- B. Long-lasting active immunity is conferred.
- C. Lifelong active natural immunity is conferred.
- D. Passive natural immunity is conferred temporarily.
Correct answer: B
Rationale: The correct answer is B: Long-lasting active immunity is conferred. Tetanus toxoid injection works by stimulating the child's body to produce its antibodies, providing long-lasting active immunity. Choice A is incorrect because passive immunity is not conferred for life; it is temporary and involves receiving antibodies rather than producing them internally. Choice C is incorrect as the immunity conferred by the tetanus toxoid injection is not lifelong natural immunity but rather active immunity stimulated by the body's immune response. Choice D is also incorrect since passive natural immunity is not conferred by the tetanus toxoid injection, and it is not temporary.
4. Which observation made of the exposed abdomen is most indicative of pyloric stenosis?
- A. abdominal rigidity
- B. substernal retraction
- C. palpable olive-like mass
- D. marked distention of lower abdomen
Correct answer: C
Rationale: The correct answer is C: palpable olive-like mass. In pyloric stenosis, a palpable olive-like mass can often be felt in the abdomen due to the hypertrophied pyloric muscle. This mass is a key characteristic finding in infants with pyloric stenosis. Choice A, abdominal rigidity, is more commonly associated with conditions like peritonitis. Choice B, substernal retraction, is not typically seen in pyloric stenosis but can be a sign of respiratory distress. Choice D, marked distention of the lower abdomen, is not specific to pyloric stenosis and can be present in various abdominal conditions.
5. The school nurse is presenting a class to a group of students about common overuse disorders. Which disorder would the school nurse include?
- A. Dislocated radial head
- B. Transient synovitis of the hip
- C. Osgood-Schlatter disease
- D. Scoliosis
Correct answer: C
Rationale: Osgood-Schlatter disease is a common overuse injury that specifically affects the knee. It is characterized by inflammation of the patellar ligament at the tibial tuberosity due to repetitive strain on the growth plate during activities such as running and jumping. Dislocated radial head (Choice A) is not an overuse disorder but rather an injury usually seen in young children. Transient synovitis of the hip (Choice B) is an acute hip condition and not typically classified as an overuse disorder. Scoliosis (Choice D) is a condition characterized by an abnormal lateral curvature of the spine and is not considered an overuse disorder.
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