Pediatrics HESI 2023

Correct Answer: B

Rationale: The correct answer is B: 'Long-lasting active immunity is conferred.' Tetanus toxoid injection provides long-lasting active immunity by stimulating the body to produce its own antibodies. Choice A is incorrect because tetanus toxoid injection does not provide passive immunity. Choice C is incorrect because the immunity conferred by the vaccine is not natural but artificially induced. Choice D is incorrect as the immunity provided by the tetanus toxoid injection is active, not passive.

Correct Answer: A

Rationale: The correct answer is administering pancreatic enzymes. In cystic fibrosis, there is a deficiency in pancreatic enzymes, leading to poor digestion and malabsorption of nutrients. Administering pancreatic enzymes is essential to ensure proper digestion and absorption of nutrients. Providing respiratory therapy and nutritional support are important aspects of care for a child with cystic fibrosis, but addressing the pancreatic enzyme deficiency takes priority in this scenario. Encouraging physical activity is beneficial for overall health but is not the priority intervention in this case.

Correct Answer: C

Rationale: At 18 months of age, needing assistance to climb stairs upright is considered normal behavior for a toddler. Crawling upstairs is a different motor skill and does not necessarily correlate with the ability to climb stairs. The child is still developing gross motor skills, and climbing stairs upright typically requires more coordination and strength, which may not be fully developed at this age. Choices A, B, and D are not relevant in this scenario as the observed behavior is within the expected range of development for an 18-month-old child.

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.

Correct Answer: B

Rationale: The correct answer is B: Paroxysmal abdominal pain. Colic in infants is characterized by paroxysmal abdominal pain, leading to excessive crying and fussiness. It is not caused by inadequate peristalsis (Choice A), an allergic response to certain proteins in milk (Choice C), or a protective mechanism designed to eliminate foreign proteins (Choice D). Understanding that colic is primarily associated with abdominal pain helps healthcare providers provide appropriate care and support to parents dealing with colicky infants.