Nursing Elites

1. It has been generally accepted that the percentage of total daily calories supplied by fats should be no more than:

• A. 10% to 15%.
• B. 10% to 35%.
• C. 20% to 35%.
• D. 40% to 55%.

Correct answer: C

Rationale: The recommended fat intake is between 20% to 35% of total daily calories. This range is considered optimal for maintaining a healthy diet. Choice A (10% to 15%) is too low and might not provide enough essential fats for the body. Choice B (10% to 35%) includes an upper limit that exceeds the generally accepted range. Choice D (40% to 55%) suggests a fat intake that is higher than what is recommended, which could lead to health issues if consumed regularly.

2. Which option below is an example of a meal or snack that contains complementary proteins?

• A. an egg and cheese omelet
• B. a peanut butter sandwich
• C. trail mix with nuts and raisins
• D. mixed bean salad with green beans, kidney beans, and white beans

Correct answer: B

Rationale: The correct answer is B, a peanut butter sandwich. A peanut butter sandwich combines grains from the bread and proteins from the nuts in the peanut butter, providing complementary proteins. This combination offers all essential amino acids. Choices A, C, and D do not contain complementary proteins as they lack the combination of different protein sources necessary to provide a complete amino acid profile.

3. What is the most prevalent dietary disaccharide?

• A. Lactose
• B. Fructose
• C. Sucrose
• D. Galactose

Correct answer: C

Rationale: Sucrose is the correct answer as it is the most common disaccharide found in the diet, commonly known as table sugar. Lactose is a disaccharide found in dairy products, not as prevalent in the overall diet as sucrose. Fructose is a monosaccharide commonly found in fruits and honey, not a disaccharide. Galactose is a monosaccharide commonly found in dairy products and is not the most prevalent dietary disaccharide.

4. What substance acts as an emulsifier and helps absorb digested fat?

• A. bile
• B. trypsin
• C. lipase
• D. cholecystokinin (CCK)

Correct answer: A

Rationale: The correct answer is A: bile. Bile acts as an emulsifier, breaking down fats into smaller droplets to aid in digestion and absorption. Trypsin is a digestive enzyme that acts on proteins, not fats. Lipase is an enzyme that breaks down fats, but it doesn't act as an emulsifier. Cholecystokinin (CCK) is a hormone that stimulates the release of digestive enzymes, including lipase, but it is not directly involved in emulsification.

5. What is the cause of gas formation in the colon?

• A. Consuming refined foods.
• B. Drinking excess water.
• C. Swallowing air while eating.
• D. Bacterial action on organic compounds.

Correct answer: D

Rationale: Gas formation in the colon is primarily due to bacterial fermentation of undigested carbohydrates. Choice A, consuming refined foods, is incorrect as gas formation is not directly linked to refined foods but rather undigested carbohydrates. Choice B, drinking excess water, is incorrect as water consumption does not lead to gas formation in the colon. Choice C, swallowing air while eating, is incorrect as this may cause belching but not gas formation in the colon. The correct answer is D because bacterial action on organic compounds, specifically undigested carbohydrates, leads to gas production in the colon.

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