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. A client who follows the dietary laws of Orthodox Judaism is being cared for by a nurse. Which of the following meal choices should the nurse request for the client?

• A. Turkey and cheese sandwich
• B. Spaghetti with tomato sauce
• C. Pork chop and applesauce
• D. Scrambled eggs and bacon

Correct answer: B

Rationale: The correct meal choice for a client following the dietary laws of Orthodox Judaism is 'Spaghetti with tomato sauce.' Orthodox Judaism prohibits mixing meat and dairy and consuming pork. The other choices - 'Turkey and cheese sandwich' (mixing meat and dairy), 'Pork chop and applesauce' (contains pork), and 'Scrambled eggs and bacon' (mixing meat and dairy) - do not adhere to the kosher dietary laws.

3. A nurse is teaching a client about iron-rich foods. Which food is the best source of heme iron?

• A. Spinach
• B. Lentils
• C. Beef liver
• D. Tofu

Correct answer: C

Rationale: Heme iron, found in animal products like beef liver, is more easily absorbed than non-heme iron from plant sources.

4. Which dietary supplement is often recommended for patients taking statins to lower cholesterol?

• A. Iron
• B. Coenzyme Q10
• C. Calcium
• D. Magnesium

Correct answer: B

Rationale: Coenzyme Q10 is often recommended for patients on statins because it may help reduce muscle pain, a common side effect of these medications. Iron (Choice A) is not typically recommended for patients taking statins to lower cholesterol. Calcium (Choice C) and Magnesium (Choice D) are not specifically indicated for addressing muscle pain associated with statin use, making them less suitable choices in this scenario.

5. Riboflavin

• A. Vitamin B1
• B. Vitamin B2
• C. Vitamin B3
• D. Vitamin B12

Correct answer: B

Rationale: Riboflavin is also known as Vitamin B2, which is important for energy production and the metabolism of fats, drugs, and steroids.

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