Nursing Elites

1. 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.

2. What chronic disease has been associated with increased risks of dental problems?

• A. diabetes mellitus
• B. chronic obstructive pulmonary disease
• C. Addison's disease
• D. asthma

Correct answer: A

Rationale: Diabetes mellitus is associated with an increased risk of dental problems, including gum disease and tooth loss, due to high blood sugar levels. While chronic obstructive pulmonary disease (COPD), Addison's disease, and asthma may have oral health implications, diabetes mellitus is specifically known for its strong association with dental issues.

3. Which of the following amino acids are considered indispensable?

• A. Lysine
• B. Methionine
• C. Tryptophan
• D. Valine

Correct answer: A

Rationale: The correct answer is A: Lysine. Indispensable amino acids are those that the body cannot synthesize and must be obtained from the diet. Lysine, methionine, and tryptophan are all examples of indispensable amino acids. However, the question specifically asked for 3 out of the 9 indispensable amino acids, making 'Lysine' the correct choice. Choices B, C, and D are also indispensable amino acids but are not the focus of the question.

4. Which food has the highest calcium content?

• A. soy products
• B. milk
• C. cereal grains
• D. dark green vegetables

Correct answer: B

Rationale: The correct answer is B, milk. Milk is known for being one of the best dietary sources of calcium, essential for bone health and various bodily functions. Soy products, cereal grains, and dark green vegetables are good sources of calcium as well, but milk generally has a higher calcium content compared to these options.

5. A client is being taught how to follow a low-purine diet for gout management. Which statement indicates the client understands the teaching?

• A. "I will need to limit the number of fruit servings each day."?
• B. "I should avoid eating liver and other organ meats."?
• C. "I can drink only white wine."?
• D. "I should choose red meat instead of poultry."?

Correct answer: B

Rationale: The correct answer is B. Organ meats like liver are high in purines, which can exacerbate gout symptoms. Choosing to avoid such foods is essential in following a low-purine diet. Option A is incorrect because fruits are generally low in purines and are not usually restricted in a low-purine diet. Option C is incorrect as white wine, just like other types of alcohol, should be consumed in moderation or avoided due to its purine content. Option D is incorrect because red meat, including beef and lamb, is high in purines and should be limited in a low-purine diet.

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