HESI LPN
Pediatric HESI Practice Questions
1. A healthcare provider is educating a parent group about the importance of immunizations. Which disease can be prevented by the varicella vaccine?
- A. Measles
- B. Mumps
- C. Rubella
- D. Chickenpox
Correct answer: D
Rationale: The varicella vaccine is specifically designed to prevent chickenpox. Measles, mumps, and rubella are prevented by different vaccines: Measles is prevented by the measles, mumps, and rubella (MMR) vaccine; Mumps is prevented by the MMR vaccine; and Rubella is also prevented by the MMR vaccine. Therefore, the correct answer is D, Chickenpox, as it is the disease prevented by the varicella vaccine.
2. A premature infant with respiratory distress syndrome (RDS) receives artificial surfactant. How does the nurse explain surfactant therapy to the parents?
- A. Surfactant improves the ability of your baby’s lungs to exchange oxygen and carbon dioxide.
- B. The drug prevents your baby from requiring excessive sedation.
- C. Surfactant is used to reduce episodes of periodic apnea.
- D. Your baby needs this medication to combat a potential respiratory tract infection.
Correct answer: A
Rationale: The correct answer is A. Surfactant therapy is explained to parents as a treatment that enhances the lungs' ability to exchange oxygen and carbon dioxide. This is essential for premature infants with respiratory distress syndrome (RDS) as it helps improve their respiratory function. Choices B, C, and D are incorrect because surfactant therapy primarily focuses on addressing lung function and is not related to sedation, apnea reduction, or fighting respiratory tract infections.
3. An additional defect is associated with exstrophy of the bladder. For what anomaly should the nurse assess the infant?
- A. Imperforate anus
- B. Absence of one kidney
- C. Congenital heart disease
- D. Pubic bone malformation
Correct answer: D
Rationale: The correct answer is D, pubic bone malformation. Exstrophy of the bladder is commonly associated with pubic bone malformation because the condition involves a defect in the pelvic region. Choices A, B, and C are incorrect. Imperforate anus, absence of one kidney, and congenital heart disease are not typically associated with exstrophy of the bladder.
4. The nurse is counseling a young couple who, in 2 months, are having their third baby. The nurse uses Von Bertalanffy's general system theory applied to families to analyze the family structure. Which best describes the main emphasis of this theory and its application to family dynamics?
- A. It emphasizes the family as a system with interdependent, interacting parts that endure over time to ensure the survival, continuity, and growth of its components.
- B. It emphasizes the social system of the family, such as the organization or structure of the family and how the structure relates to the function.
- C. It emphasizes the developmental stages that all families go through, beginning with marriage; the longitudinal career of the family is also known as the family life cycle.
- D. It addresses the way families respond to stress and how the family copes with the stress as a group and how each individual member copes.
Correct answer: A
Rationale: Von Bertalanffy's general system theory applied to families emphasizes the family as a system with interdependent, interacting parts that endure over time to ensure the survival, continuity, and growth of its components. This perspective views the family as a dynamic entity where each member's actions and behaviors impact the overall functioning of the family unit. Choice B is incorrect because it focuses more on the social aspects of family structure rather than the systemic view provided by Von Bertalanffy's theory. Choice C is incorrect as it pertains more to the family life cycle theory, which is different from the general system theory. Choice D is incorrect as it addresses stress response within families, a concept not central to Von Bertalanffy's general system theory.
5. Which of the following techniques represents the most appropriate method of opening the airway of an infant with no suspected neck injury?
- A. lift up the chin and hyperextend the neck
- B. tilt the head back without hyperextending the neck
- C. gently lift the chin while maintaining slight flexion of the neck
- D. perform the technique as you would for an older child or adult
Correct answer: B
Rationale: The correct technique for opening the airway of an infant with no suspected neck injury is to tilt the head back without hyperextending the neck. This method helps to keep the airway open without risking injury to the infant's delicate neck structures. Choice A, lifting up the chin and hyperextending the neck, can potentially harm the infant's neck. Choice C, gently lifting the chin while maintaining slight flexion of the neck, is not as effective as tilting the head back. Choice D is incorrect as infants require a different approach compared to older children or adults due to their anatomical differences.
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