Which of the following is NOT a function of hormones?
- A. Producing new offspring
- B. Promoting growth and beauty
- C. Maintaining body temperature
- D. Fighting infections
Correct Answer: A
Rationale: Hormones play various roles in the body, such as promoting growth and beauty, maintaining body temperature, and fighting infections. However, producing new offspring is not a direct function of hormones. Reproduction is primarily regulated by other factors like the reproductive system. Choice B is incorrect because hormones can indeed influence growth but not specifically 'beauty.' Choice C is incorrect as hormones can help regulate body temperature indirectly. Choice D is incorrect as hormones like cytokines can be involved in the body's immune response to fight infections.
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The nurse is preparing to administer vitamin K to a newborn. The mother asks why this injection is necessary. What is the nurse's best response?
- A. It helps the baby's liver function properly.
- B. It prevents bleeding disorders in the newborn.
- C. It boosts the baby's immune system.
- D. It promotes the baby's growth and development.
Correct Answer: B
Rationale: The correct answer is B. Vitamin K is administered to newborns to prevent bleeding disorders since they have low levels of vitamin K, which is essential for blood clotting. By providing this injection, the nurse ensures that the newborn has an adequate supply of vitamin K to support proper blood clotting and prevent potential bleeding complications. Choices A, C, and D are incorrect because vitamin K's primary role in newborns is related to blood clotting and preventing bleeding, not liver function, immune system, or growth and development.
A breastfeeding mother reports breast engorgement. The nurse advises her to:
- A. Increase the frequency of feedings
- B. Apply ice packs to the breasts
- C. Avoid breastfeeding until the pain subsides
- D. Use a breast pump to empty the breasts completely
Correct Answer: A
Rationale: Breast engorgement occurs when the breasts become overfilled with milk. By increasing the frequency of feedings, the mother can ensure that her breasts are emptied regularly, helping to relieve the discomfort associated with engorgement. This advice promotes effective milk removal and prevents further accumulation, which can worsen the condition. Applying ice packs may provide temporary relief, but it does not address the underlying issue of milk accumulation. Avoiding breastfeeding can lead to further engorgement and potential complications. Using a breast pump to empty the breasts completely may be necessary in some cases, but increasing the frequency of feedings is the initial and most appropriate intervention to manage breast engorgement.
A new parent reports to the nurse that the baby looks cross-eyed several times a day. The nurse teaches the parents that this finding should resolve in how long?
- A. 2 months
- B. 2 weeks
- C. 1 year
- D. 4 months
Correct Answer: D
Rationale: Transient strabismus, causing the baby to look cross-eyed, is due to poor neuromuscular control of the eye muscles. This condition typically resolves on its own within 3 to 4 months as the infant's neuromuscular control improves. Parents should be reassured that this is a common and temporary issue in infants. Choice A is incorrect as it is too long for the resolution of transient strabismus. Choice B is incorrect as 2 weeks is too short for resolution. Choice C is incorrect as 1 year is too long for transient strabismus to resolve.
Which of the following is not an infectious cause of diarrhea?
- A. Allergy
- B. Bacteria
- C. Parasite
- D. Virus
Correct Answer: A
Rationale: The correct answer is A: Allergy. Allergy is not an infectious cause of diarrhea. Diarrhea caused by bacteria, parasites, and viruses is due to infection, while an allergy triggers an immune response that can lead to diarrhea but is not caused by an infectious agent. Choices B, C, and D are incorrect because bacteria, parasites, and viruses are known infectious causes of diarrhea, resulting from infections by these microorganisms.
To prevent diarrhea in children, a vaccine is available against which of the following?
- A. Adenovirus
- B. Rotavirus
- C. Enterovirus
- D. All of the above
Correct Answer: B
Rationale: The correct answer is B - Rotavirus. Rotavirus vaccine is available to prevent diarrhea in children. Rotavirus is a common cause of severe diarrhea in infants and young children globally, and vaccination has been shown to be effective in reducing the burden of this disease. Choices A and C are incorrect because there is no specific vaccine available for Adenovirus or Enterovirus to prevent diarrhea in children. Choice D is incorrect because while vaccines are available for some viruses that can cause diarrhea in children, not all mentioned in the choices have a specific vaccine available.