Nursing Elites

1. Each statement is true of proteins, except one. Which is the exception?

• A. Proteins are composed of building blocks called amino acids
• B. The classification of the 20 common amino acids is based on the properties of their side chains
• C. The general structure of an amino acid varies considerably
• D. Amino acids polymerize to form long chains called polypeptides

Correct answer: B

Rationale: The correct answer is B. The classification of the 20 common amino acids is not based on the properties of their side chains, but rather on the structure of their amino and carboxyl groups. These groups are consistent among all amino acids, while the side chains, also known as R groups, are what vary and give each amino acid its unique properties. Choice A is correct because proteins are indeed composed of amino acids. Choice C is incorrect because while the side chains of amino acids can vary, the general structure of an amino acid - a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain - is consistent. Choice D is correct because amino acids do polymerize to form long chains called polypeptides, which can then fold into complex shapes to form proteins.

2. What is the first thing you should do before sharing information with a patient?

• A. Provide background knowledge
• B. Ask for permission
• C. Remove personal protective equipment (PPE)
• D. Remind the patient that you are the authority

Correct answer: B

Rationale: Before sharing information with a patient, it is essential to ask for their permission. This action respects the patient's autonomy and encourages their participation in the learning process. Asking for permission establishes a foundation of trust and partnership between the healthcare provider and the patient. Providing background knowledge (Choice A) is important, but it should come after receiving consent to share information. Removing personal protective equipment (Choice C) is not related to the communication process. Reminding the patient that you are the authority (Choice D) is inappropriate as it can undermine the patient's autonomy and hinder effective communication in a patient-centered care approach.

3. Which of the following is the least likely reason that osteoporosis is more prevalent in women?

• A. women have smaller bodies
• B. women have lower bone mass
• C. women consume less calcium
• D. bone loss begins later in women

Correct answer: D

Rationale: The correct answer is D. Contrary to the statement, bone loss begins earlier in women, particularly after menopause, due to the decrease in estrogen levels. This drop in estrogen accelerates bone loss, contributing to the higher prevalence of osteoporosis in women. Choices A, B, and C are more likely reasons for the increased prevalence of osteoporosis in women. Women generally have smaller bodies, lower bone mass compared to men, and may consume less calcium, all of which are significant factors contributing to the higher incidence of osteoporosis in women.

4. A client at risk for iron-deficiency anemia is being taught by a nurse about optimizing dietary intake of iron. The nurse should explain that which of the following sources of iron is easiest for the body to absorb?

• A. Spinach
• B. Cantaloupe
• C. Chicken
• D. Lentils

Correct answer: C

Rationale: The correct answer is 'Chicken.' Chicken contains heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based sources like spinach, cantaloupe, and lentils. Heme iron, as present in chicken, is more bioavailable and is better absorbed by the body, making it an excellent source of iron for individuals at risk of iron-deficiency anemia. Spinach, cantaloupe, and lentils contain non-heme iron, which is not as efficiently absorbed as heme iron.

5. Which of the following statements is correct about MyPlate?

• A. Canned fruit can be considered part of the fruit group
• B. Soymilk is considered part of the dairy group
• C. Beans and peas are considered part of both the protein group and the vegetable group
• D. Cream cheese and butter are not part of the dairy group

Correct answer: C

Rationale: According to the MyPlate guide, beans and peas are classified as part of both the protein and vegetable groups due to their high protein content and the nutrients they share with vegetables. This makes Choice C correct. Choice A is incorrect as canned fruit can be part of the fruit group if it's canned in water or 100% fruit juice. Soymilk is considered part of the dairy group, making Choice B incorrect. While cream cheese and butter are dairy products, they are not part of the dairy group on MyPlate because they contain little to no calcium, making Choice D incorrect.

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