ATI LPN
Multiple Choice Questions on Immune System Questions
Question 1 of 5
Which statement, made by a 4-year-old child’s father, is true about the care of the preschooler’s teeth?
Correct Answer: B
Rationale: Step 1: Proper dental care for children involves both parents and children. In this scenario, the father acknowledges his role in helping the child develop good oral hygiene habits. Step 2: The father's statement shows understanding that children at this age may not be able to brush their teeth effectively on their own, hence the need for parental assistance. Step 3: By stating that he will encourage his son to brush his teeth after thorough cleaning, the father is promoting proper dental care habits in the child. Step 4: This approach instills the importance of oral hygiene in the child from an early age, setting a foundation for lifelong dental health. Summary: A: Incorrect. Baby teeth are essential for proper speech development, nutrition, and guiding permanent teeth. C: Incorrect. Permanent teeth typically begin to come in around 6 years of age, not 4 to 5. D: Incorrect. Fluoride supplements are important for dental health and should be continued as recommended by the dentist.
Question 2 of 5
The primary nursing intervention to prevent bacterial endocarditis is which of the following?
Correct Answer: A
Rationale: The correct answer is A because counseling parents of high-risk children about the importance of prophylactic antibiotics before dental procedures is the primary nursing intervention to prevent bacterial endocarditis. This is crucial as dental procedures can introduce bacteria into the bloodstream, leading to endocarditis in susceptible individuals. Choice B is incorrect because preventing dental procedures altogether is not necessary, rather ensuring prophylactic antibiotics are administered before procedures is key. Choice C, encouraging restricted mobility, is not a recommended intervention for preventing endocarditis. Choice D focuses on observing for complications rather than preventing the condition in the first place, making it an incorrect choice.
Question 3 of 5
One reason that pathogenic microorganisms have an advantage in the host they infect is because they:
Correct Answer: D
Rationale: The correct answer is D because pathogenic microorganisms reproduce and evolve more rapidly than the host can eliminate them. This rapid reproduction and evolution allow the pathogens to adapt quickly to host defenses, leading to successful infection. Choice A and B are incorrect because previous exposure through natural exposure or vaccination does not necessarily give pathogens an advantage. Choice C is incorrect because pathogens typically weaken the host's immune response rather than strengthen it.
Question 4 of 5
Which of the following statements is false?
Correct Answer: B
Rationale: The correct answer is B because hematopoietic stem cells give rise to all blood cell types, including both white and red blood cells. The other choices are true: A is correct as hematopoiesis does occur in various locations, C is true as hematopoietic stem cells can self-renew, and D is accurate as platelets do participate in clotting to prevent blood loss. Overall, B is the only statement that is false in this context.
Question 5 of 5
The nurse is caring for someone with a low red blood cell (erythrocyte) count. The nurse explains the function of the erythrocyte is to (select ONE that apply.)
Correct Answer: B
Rationale: Step 1: Erythrocytes carry oxygen bound to hemoglobin. This is correct as they transport oxygen from the lungs to the body tissues. Step 2: Erythrocytes also carry some carbon dioxide. This is the correct answer because they pick up carbon dioxide from the tissues and transport it to the lungs for exhalation. Step 3: Erythrocytes do not assist with clotting, which is primarily the role of platelets and certain proteins in the blood. Step 4: Erythrocytes do not assist with immunity, as that function is mainly carried out by white blood cells.