Nokea
Can fluid retention cause lab values to be deceptively high, whereas dehydration may cause the values to be deceptively low?
- A. TRUE
- B. FALSE
- C. Not always
- D. Sometimes
Correct Answer: B
Rationale: The statement is incorrect. Fluid retention generally results in lab values appearing deceptively low, not high, because the excess fluid dilutes the concentration of substances in the blood. Conversely, dehydration can make lab values appear deceptively high as the reduced fluid volume in the body means substances in the blood are less diluted. Choices 'C: Not always' and 'D: Sometimes' are not specific and do not directly address the statement in the question, hence they are incorrect.
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What symptoms would most likely be associated with a transient ischemic attack?
- A. confusion and difficulty speaking
- B. headache and blurred vision
- C. chest pain and pressure
- D. claudication and peripheral edema
Correct Answer: A
Rationale: The correct answer is A: confusion and difficulty speaking. These symptoms are commonly associated with a transient ischemic attack (TIA), which is a temporary blockage of blood flow to the brain. Choice B, headache and blurred vision, are more indicative of other conditions such as migraines or eye problems. Choice C, chest pain and pressure, are more characteristic of cardiac issues like a heart attack. Choice D, claudication and peripheral edema, are typical of peripheral arterial disease and not typically seen in TIAs.
You are a researcher testing out the effects of a new food molecule-MEGA-on bone health. In order to know if it actually travels to bone cells in the body, you first need to find out if it gets absorbed in the bloodstream. You eat a food containing MEGA, and you measure the molecule in your urine and feces. You only detect MEGA in the feces. Was MEGA absorbed?
- A. No-absorbed compounds show up in urine, not feces
- B. Yes-absorbed compounds show up in feces, not urine
Correct Answer: A
Rationale: If MEGA was only detected in feces and not in urine, it was not absorbed into the bloodstream. Absorbed compounds typically appear in urine after processing by the body. The correct answer is A because the presence of a compound in feces indicates that it was not absorbed by the body and passed through the digestive system. Choices B, C, and D are incorrect as they do not align with the process of absorption and excretion in the body.
Which of the following provides greater flexibility, better balance, more endurance, and overall better health and greater longevity for older adults?
- A. Eating balanced meals
- B. Not smoking or drinking alcohol
- C. Daily physical activity
- D. Increased intake of calcium and iron
Correct Answer: C
Rationale: The correct answer is C: Daily physical activity. Daily physical activity contributes to better flexibility, balance, endurance, and overall health, helping older adults maintain independence and reduce the risk of chronic diseases. Choices A, B, and D, although important for overall health, do not specifically address the benefits of greater flexibility, better balance, more endurance, and greater longevity associated with daily physical activity.
Proteolytic enzymes are most likely to break down which food type?
- A. Carbohydrates
- B. Proteins
- C. Fats
- D. Lipids
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Select all that apply. Characteristics of the 2 main types of essential fatty acids discussed in class include:
- A. they must be supplied by the diet
- B. they can be produced by a process called dehydrogenation
- C. they are anti-inflammatory
- D. they are all polyunsaturated fatty acids
Correct Answer: A
Rationale: The correct answer is A: 'they must be supplied by the diet.' Essential fatty acids, like omega-3 and omega-6, cannot be produced by the body and must be obtained through the diet. They are polyunsaturated fatty acids, playing vital roles in inflammation and cell membrane structure. Choice B is incorrect because essential fatty acids cannot be produced by dehydrogenation, a process of removing hydrogen. Choice C is incorrect as not all essential fatty acids are anti-inflammatory; some have pro-inflammatory roles. Choice D is incorrect because not all essential fatty acids are polyunsaturated; omega-9, for example, is a monounsaturated essential fatty acid.