Nursing Elites

1. Chemicals, agents, or factors that cause physical defects in the developing embryo and are most harmful during organogenesis are:

• A. Teratogens
• B. Heterozygous
• C. Inborn errors
• D. Multifactorial

Correct answer: A

Rationale: Teratogens are substances that can cause congenital abnormalities, especially during the first trimester when organogenesis occurs. Choice A, Teratogens, is the correct answer as it specifically refers to substances that cause physical defects in the developing embryo. Choices B, Heterozygous, C, Inborn errors, and D, Multifactorial, are incorrect as they do not directly relate to substances that cause physical defects in embryos during organogenesis.

2. A breastfed infant is being seen in the clinic for a 6-month checkup. The mother tells the nurse that the infant recently began to suck her thumb. Which is the best nursing intervention?

• A. Reassure the mother that this is normal at this age
• B. Recommend the mother substitute a pacifier for her thumb
• C. Assess the infant for other signs of sensory deprivation
• D. Suggest the mother breastfeed the infant more often to satisfy her sucking needs

Correct answer: A

Rationale: Thumb sucking is a normal self-soothing behavior in infants and usually does not indicate a problem. Reassuring the mother that this is normal is the appropriate response.

3. At which age do most infants begin to fear strangers?

• A. 2 months
• B. 4 months
• C. 6 months
• D. 12 months

Correct answer: C

Rationale: Fear of strangers typically begins around 6 months as infants start recognizing familiar and unfamiliar faces, which is part of their social development.

4. What disease should be suspected in a 3-day-old infant presenting with abdominal distention, vomiting, and failure to pass meconium?

• A. Pyloric stenosis
• B. Intussusception
• C. Hirschsprung disease
• D. Celiac disease

Correct answer: C

Rationale: Hirschsprung disease should be suspected in a newborn with abdominal distention, vomiting, and failure to pass meconium. This condition arises from a congenital absence of nerve cells in a portion of the colon, leading to severe constipation and intestinal obstruction. Pyloric stenosis typically presents with non-bilious projectile vomiting in the first few weeks of life. Intussusception classically manifests with sudden onset of colicky abdominal pain and currant jelly stools. Celiac disease may present with chronic diarrhea, failure to thrive, and abdominal distention but is less likely in this scenario.

5. Which is described as an elevated, circumscribed skin lesion that is less than 1 cm in diameter and filled with serous fluid?

• A. Cyst
• B. Papule
• C. Pustule
• D. Vesicle

Correct answer: D

Rationale: A vesicle is an elevated, circumscribed lesion filled with serous fluid, typically less than 1 cm in diameter.

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