What describes a criterion used to diagnose diabetes?
- A. a plasma glucose concentration of 100 mg/dL or higher after a fast of at least 12 hours
- B. a casual blood sample of 200 mg/dL or higher in a person with classic symptoms
- C. a plasma glucose concentration measured two hours after a 200-gram glucose load is 400 mg/dL or higher
- D. a HbA1C higher than 5 percent
Correct Answer: B
Rationale: A casual blood sample of 200 mg/dL or higher in a person with classic symptoms is a diagnostic criterion for diabetes. This choice aligns with the typical clinical presentation of diabetes and is a key diagnostic indicator. Choices A, C, and D do not accurately reflect the established criteria for diagnosing diabetes, making them incorrect. Choice A pertains to a fasting plasma glucose level, Choice C involves a glucose challenge test, and Choice D refers to HbA1C levels, which are used for monitoring blood sugar control over time, not for diagnosing diabetes.
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A dietitian tells you that you are not consuming enough calories. Which of the following nutrients could you add to your diet to increase your energy intake?
- A. fiber
- B. water
- C. protein
- D. vitamins
Correct Answer: C
Rationale: Corrected Rationale: Protein provides 4 kcal per gram, making it a good source of energy to increase caloric intake. While fiber and water are important for other aspects of health, they do not provide energy like protein does. Vitamins are essential for various bodily functions but do not contribute directly to caloric intake.
Which practice is a type of traditional Chinese medicine?
- A. magnet therapy
- B. acupuncture
- C. faith healing
- D. biofeedback
Correct Answer: B
Rationale: Acupuncture is a key practice in traditional Chinese medicine. It involves the insertion of thin needles into specific points on the body to balance energy flow and promote healing. Magnet therapy, faith healing, and biofeedback are not specifically associated with traditional Chinese medicine practices.
For individuals with lactose intolerance, which of the following foods should be avoided?
- A. Eggs
- B. Milk
- C. Almonds
- D. Beef
Correct Answer: B
Rationale: Individuals with lactose intolerance lack the enzyme lactase needed to break down lactose. Milk contains lactose, a sugar found in dairy products, and should be avoided by individuals with lactose intolerance. Choices A, C, and D are not sources of lactose and are generally well-tolerated by individuals with lactose intolerance.
Cyanocobalamin is a form of which vitamin?
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B3
- D. Vitamin B12
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which of the following proteins is iron a component of, responsible for the transport of oxygen in the bloodstream?
- A. hemoglobin
- B. transferrin
- C. myoglobin
- D. hepcidin
Correct Answer: A
Rationale: The correct answer is A: hemoglobin. Hemoglobin is the protein found in red blood cells that is responsible for carrying oxygen from the lungs to the rest of the body. Iron is a crucial component of hemoglobin, binding to oxygen and allowing for its transport. Choice B, transferrin, is involved in iron transport in the blood but not in oxygen transport. Choice C, myoglobin, is a protein found in muscle cells that stores oxygen for muscle use, not transportation in the bloodstream. Choice D, hepcidin, is a peptide hormone that regulates iron absorption in the intestines and iron distribution in the body, but it is not directly involved in oxygen transport.