ATI Nutrition Proctored Exam 2023

Correct Answer: D

Rationale: The correct answer is 'antioxidants and phytochemicals'. Antioxidants and phytochemicals help reduce oxidative damage in the body, contributing to healthy aging and a lower risk of chronic diseases. This is the same effect observed in animals when their energy intake is restricted. The other choices are incorrect as there is no direct evidence connecting reduced oxidative damage with diets high in fiber and carbohydrates, fatty acids and protein, or probiotics.

Correct Answer: D

Rationale: Hypoalbuminemia, which refers to low albumin levels in the blood, is often associated with edema. Albumin helps maintain oncotic pressure, which keeps fluid within blood vessels. When albumin levels are low, this pressure decreases, leading to fluid leakage from the blood vessels into the surrounding tissues, resulting in edema. The other choices are less likely effects of hypoalbuminemia. Hypoalbuminemia doesn't directly cause infections (Choice A), rickets (Choice B) caused by vitamin D deficiency, or hypertension (Choice C) associated with factors like high sodium intake, obesity, and genetic predisposition.

Correct Answer: A

Rationale: Both statements are true. The health history aims to uncover health-related factors that could pose nutritional risks, including medications like prednisone that may have interactions affecting nutrient requirements. Choice B is incorrect as both statements are accurate, emphasizing the significance of health history in assessing nutritional concerns.

Correct Answer: B

Rationale: Cariogenic foods and beverages lower the pH level in the mouth to below 5.5. This is a critical threshold, as it is the point at which enamel begins to demineralize, increasing the risk of dental caries. Therefore, options 'A', 'C', and 'D' are incorrect. Although a pH level of 5, as suggested by option 'A', would indeed lead to demineralization, it's not the threshold value. The pH levels suggested by options 'C' and 'D' (6 and 6.5, respectively) are higher than the critical value of 5.5, which means they would not initiate enamel demineralization and the subsequent risk of dental caries.

Correct Answer: C

Rationale: The correct answer is C: Carcinomas. Carcinomas are cancers that originate from epithelial tissues, which are the tissues lining the surfaces of organs and structures in the body. Leukemias (choice A) are cancers of the blood-forming cells, not epithelial tissues. Myelomas (choice B) are cancers that develop in plasma cells in the bone marrow, not epithelial tissues. Sarcomas (choice D) are cancers that arise from connective tissues like bone, cartilage, or muscle, not epithelial tissues. Therefore, choices A, B, and D are incorrect in the context of cancers originating from epithelial tissues.