ATI RN
ATI Anatomy and Physiology Online Practice
1. What is the main function of the digestive system?
- A. Formation of cells
- B. Movement of body parts
- C. Absorption of nutrients
- D. Providing oxygen for the extraction of energy from nutrients
Correct answer: C
Rationale: The correct answer is C: Absorption of nutrients. The main function of the digestive system is to break down food into nutrients that can be absorbed by the body to provide energy and support bodily functions. Choice A, 'Formation of cells,' is incorrect as cell formation is not the primary function of the digestive system; it is more related to processes like cell division and growth. Choice B, 'Movement of body parts,' is incorrect as this is more related to the muscular system, which controls body movements. Choice D, 'Providing oxygen for the extraction of energy from nutrients,' is incorrect because providing oxygen is primarily the function of the respiratory system, which is responsible for breathing and oxygen exchange in the body, not the digestive system.
2. During a well-child checkup, the parent of a 5-year-old child reports the child seems much smaller than the 2 older siblings did at this same age. A review of the medical record reveals that the child is 44 inches tall and weighs 42 pounds. What information should be included in the response by the nurse?
- A. The weight of your child at this time is within normal limits for this age but the child is moderately taller than other children this age.
- B. Your child is within the acceptable range for height but the child is significantly smaller in weight for this age.
- C. Your child is within normal limits for weight but the child is slightly shorter in stature than other children this age.
- D. Your child is slightly taller than other children this age but the child’s weight is normal.
Correct answer: D
Rationale: The correct answer is D. The child is slightly taller than average, but the weight is within normal limits. This information should be reassuring to the parent and provides insights into normal growth patterns. Choice A is incorrect as it inaccurately states that the child is taller than other children this age. Choice B is incorrect because the child's weight is actually within normal limits. Choice C is incorrect as it inaccurately states that the child is shorter in stature than other children this age.
3. A client with a new diagnosis of type 1 diabetes mellitus is being taught about self-administration of insulin by a nurse. Which of the following instructions should the nurse include?
- A. Store the current bottle of insulin at room temperature
- B. Massage the injection site after removing the needle
- C. Pull back on the plunger after injecting the insulin
- D. Use each syringe up to six times
Correct answer: A
Rationale: The correct answer is to store the current bottle of insulin at room temperature. Insulin should be stored this way to maintain its potency and effectiveness. Choice B is incorrect because massaging the injection site after removing the needle is not recommended practice and can cause bruising. Choice C is incorrect as pulling back on the plunger after injecting insulin can lead to injecting air bubbles into the tissue. Choice D is incorrect as syringes should not be reused multiple times due to the risk of contamination and inaccurate dosing.
4. Which statement about the human immunodeficiency virus (HIV) is true?
- A. About 30 percent of all new HIV infections affect women.
- B. In South Africa, 30 percent of all pregnant women are HIV-positive.
- C. About 30 percent of new HIV infections occur in developing countries.
- D. Untreated HIV-infected mothers pass the virus to the fetus 30 percent of the time.
Correct answer: B
Rationale: The correct answer is B: 'In South Africa, 30 percent of all pregnant women are HIV-positive.' This statement is true as South Africa has a high prevalence of HIV among pregnant women, emphasizing the need for interventions to prevent mother-to-child transmission. Choices A, C, and D are incorrect. Choice A is inaccurate as women account for more than 50% of new HIV infections globally. Choice C is misleading as the majority of new HIV infections actually occur in sub-Saharan Africa, not just developing countries. Choice D is also incorrect as without treatment, the risk of mother-to-child transmission is higher than 30%.
5. Which state of arousal is considered the most fleeting?
- A. Regular sleep
- B. REM sleep
- C. Drowsiness
- D. Quiet alertness
Correct answer: D
Rationale: Quiet alertness is indeed the most fleeting state of arousal. This state is characterized by a newborn infant being awake, calm, and attentive, but it is short-lived and transitions quickly to other states of arousal. Regular sleep, REM sleep, and drowsiness are not considered as brief and transitional as quiet alertness in newborn infants.
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