Which comments indicate that the mother of a toddler needs further teaching about dental care?

Correct Answer: C

Rationale: Step 1: Permanent teeth typically start coming in around age 6-7, so waiting until then for a dental checkup is incorrect. Step 2: Dental care for toddlers should start early to prevent cavities and establish good oral hygiene habits. Step 3: Regular dental checkups are essential to monitor oral health and detect any issues early. Step 4: Choices A, B, and D all demonstrate understanding of dental care practices for toddlers, making them correct. Summary: Choice C is incorrect as it shows a lack of understanding of the importance of early dental care for toddlers. Choices A, B, and D are correct as they demonstrate appropriate dental care practices for toddlers.

Correct Answer: B

Rationale: The correct answer is B because it emphasizes the importance of social development and play for the child's overall well-being. Playing with peers helps the child develop social skills, emotional regulation, and physical abilities. It also promotes a sense of belonging and normalcy. The other choices are incorrect because: - A: Parents meeting all the child's needs may lead to overprotection and hinder the child's independence. - C: Constant parental supervision may limit the child's autonomy and hinder their social interactions. - D: Telling the child that peers' activities are too strenuous may create unnecessary fear and isolation.

Correct Answer: C

Rationale: The correct answer is C: Have someone notify the emergency medical services (EMS) system. This is the most appropriate action because the child's lack of movement in response to requests indicates a potential serious injury that requires immediate medical attention. Calling EMS ensures that the child receives prompt and appropriate care from trained medical professionals. Choice A (Wait for the child’s parents to arrive) is incorrect because in an emergency situation like this, time is crucial, and waiting for parents may delay necessary medical intervention. Choice B (Move the child out of the parking lot) is incorrect because moving the child without proper assessment and stabilization could worsen any potential spinal cord or other injuries. Choice D (Help the child stand to return to play) is incorrect as it ignores the seriousness of the situation and risks further harm to the child. In summary, notifying EMS is the best course of action to ensure the child's safety and well-being in this emergency scenario.

Correct Answer: C

Rationale: The correct answer is C: neutrophil. Neutrophils are the most abundant type of leukocyte in human peripheral blood, constituting about 40-60% of total leukocytes. They are key players in the innate immune system, involved in phagocytosis and killing of pathogens. Eosinophils (A) and basophils (B) are less abundant than neutrophils. Monocytes (D) are also important in immune responses but are present in lower numbers than neutrophils in peripheral blood.

Correct Answer: C

Rationale: The correct answer is C: New influenza variants able to escape prior immunity regularly. This is because influenza viruses have high mutation rates, leading to the emergence of new strains that can evade previously acquired immunity. This phenomenon is known as antigenic drift, making it challenging for the immune system to recognize and respond effectively to the constantly evolving strains. A: Effective immunological memory fails to develop - This is incorrect as the immune system does develop memory cells upon exposure to influenza, but the issue lies in the ability of these memory cells to recognize and combat the rapidly changing strains. B: Immune responses to influenza involve innate immune mechanisms only - This is incorrect as both innate and adaptive immune responses are involved in fighting influenza, with adaptive immunity playing a crucial role in generating specific memory cells. D: Influenza virus targets memory cells - This is incorrect as influenza primarily targets respiratory epithelial cells rather than specifically targeting memory cells.