Reducing the amount of trans fat in the diet is an effective method of decreasing the risk of CHD. Which food is most likely a source of trans fat?
- A. hot dogs
- B. whole milk
- C. fatty fish
- D. potato chips
Correct Answer: D
Rationale: The correct answer is D: potato chips. Potato chips, especially when fried in hydrogenated oils, are a common source of trans fats, which are linked to an increased risk of coronary heart disease (CHD). Hot dogs (choice A) can also contain trans fats if made with processed meats and added fats. Whole milk (choice B) and fatty fish (choice C) do not typically contain trans fats, making them less likely sources compared to potato chips.
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Which neuromuscular disease is characterized by abnormal chewing and swallowing patterns, tremors of the mandible, lip, and tongue, frequent drooling, and holding food in the mouth for extended periods?
- A. Developmental disabilities
- B. Parkinson's disease
- C. Epilepsy
- D. Diabetes mellitus
Correct Answer: B
Rationale: The correct answer is B, Parkinson's disease. Parkinson's disease is characterized by abnormal chewing and swallowing patterns, tremors of the mandible, lip, and tongue, frequent drooling, and difficulties in oral functions like holding food in the mouth. Developmental disabilities (Choice A) do not specifically cause these symptoms related to neuromuscular function. Epilepsy (Choice C) is a neurological disorder characterized by recurrent seizures and does not typically present with the described symptoms. Diabetes mellitus (Choice D) is a metabolic disorder that affects blood sugar regulation and does not directly cause the neuromuscular symptoms mentioned in the question.
What is the glomerular filtration rate for patients with stage 5 chronic kidney disease (CKD)?
- A. Less than 15 mL/min/1.73 m²
- B. Less than 30 mL/min/1.73 m²
- C. Less than 90 mL/min/1.73 m²
- D. Less than 125 mL/min/1.73 m²
Correct Answer: A
Rationale: In patients with stage 5 chronic kidney disease (CKD), also known as end-stage renal disease, the kidney function is significantly compromised. This severe condition is characterized by a glomerular filtration rate (GFR) of less than 15 mL/min/1.73 m², as correctly stated in choice A. Choices B, C, and D suggest higher GFR values, which are not indicative of stage 5 CKD. Specifically, a GFR of less than 30 mL/min/1.73 m² indicates stage 4 CKD, less than 90 mL/min/1.73 m² signifies stage 3 CKD, and a typical healthy individual usually has a GFR of around 125 mL/min/1.73 m², which is far above the GFR for stage 5 CKD.
Are the following statements both true: 'Most excess energy intake, whether from protein, carbohydrate, alcohol, or fat, is stored in the liver' and 'Fat is a good source of energy, but the preferred fuel is protein'?
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true, but the second is false
- D. The first statement is false, but the second is true
Correct Answer: B
Rationale: Both of the given statements are false. The first statement is inaccurate because the primary location for excess energy storage is not the liver, but rather adipose tissue where it is stored as fat. While the liver does have a role in energy storage and metabolism, it is not the main storage site for excess intake. The second statement is also incorrect. Although fat and protein can be used as sources of energy, the body's preferred source of energy is carbohydrates. They break down more efficiently and are easier for the body to use. The body prefers to conserve protein for other essential functions, such as tissue repair and the production of enzymes. Therefore, protein is not the preferred fuel source.
Which types of diabetes are characterized by the body's cells becoming resistant to insulin? (Select all that apply)
- A. Gestational diabetes
- B. Type II diabetes
- C. Type I diabetes
- D. Both A and B
Correct Answer: D
Rationale: In both gestational diabetes and Type II diabetes, the body's cells become resistant to insulin, leading to elevated blood glucose levels. Insulin resistance in these types of diabetes prevents glucose from entering the cells, causing it to accumulate in the bloodstream. On the other hand, Type I diabetes is characterized by the body's inability to produce insulin because the immune system mistakenly attacks and destroys the insulin-producing cells in the pancreas. Therefore, the correct answer is both A and B. Choice C, Type I diabetes, is not characterized by insulin resistance but rather by the body's inability to produce insulin. Therefore, it is incorrect. Choice D, Both A and B, includes the correct options of gestational diabetes and Type II diabetes, making it the correct answer.
Scurvy is caused by a deficiency of ascorbic acid (Vitamin C) because ascorbic acid is required for collagen synthesis. Is this statement true or false?
- A. TRUE
- B. FALSE
- C. Not applicable
- D. Not applicable
Correct Answer: A
Rationale: The statement is accurate. Scurvy is indeed caused by a deficiency in ascorbic acid, which is another name for Vitamin C. This vitamin plays a crucial role in the synthesis of collagen, a protein that helps in the formation and strength of skin, blood vessels, tissues, and bones. When the body lacks Vitamin C, it cannot produce enough collagen, leading to symptoms associated with scurvy such as bleeding gums and weakened immunity. The choice 'False' is incorrect because it contradicts the proven medical and scientific understanding of the causes of scurvy. Choices 'C' and 'D' are marked as 'Not applicable' because the question only requires a true or false answer.