Nursing Elites

1. What is considered an acceptable LDL cholesterol level for children and adolescents?

• A. Less than 70 mg/dL
• B. Less than 110 mg/dL
• C. Less than 129 mg/dL
• D. Less than 170 mg/dL

Correct answer: B

Rationale: An LDL cholesterol level of less than 110 mg/dL is considered acceptable and healthy for children and adolescents. This level helps reduce the risk of cardiovascular diseases. Choices A, C, and D are incorrect because an LDL cholesterol level below 110 mg/dL is the recommended target for children and adolescents to maintain good heart health.

2. Which enzyme initiates protein digestion in the stomach?

• A. Pepsin
• B. Salivary Amylase
• C. CCK
• D. Secretin

Correct answer: A

Rationale: Pepsin is the enzyme that initiates protein digestion in the stomach. It breaks down proteins into smaller peptides, aiding in their further digestion and absorption in the intestines. Salivary Amylase (Choice B) functions in breaking down dietary carbohydrates in the mouth, not proteins. CCK (Choice C) and Secretin (Choice D) are hormones involved in the digestion of fats and carbohydrates, not proteins. Therefore, Choices B, C, and D are incorrect in the context of protein digestion in the stomach.

3. A client who has chronic lymphocytic leukemia is starting chemotherapy treatments and asks if she needs to make any dietary changes. Which of the following statements should the nurse make?

• A. "You should avoid drinking liquids an hour before the treatments."?
• B. "Eating low-calorie foods helps prevent nausea."?
• C. "Foods that are higher in fat are usually more appealing."?
• D. "Raw fruits and vegetables will be easier for your body to digest."?

Correct answer: D

Rationale: During chemotherapy treatments for chronic lymphocytic leukemia, raw fruits and vegetables are recommended as they are easier for the body to digest. This choice provides essential nutrients and is gentle on the digestive system. Option A is incorrect because staying hydrated is crucial during chemotherapy. Option B is incorrect as low-calorie foods may not provide sufficient energy during treatment. Option C is incorrect because high-fat foods are not typically recommended due to potential digestive issues.

4. Which term is used to describe medical practices that have been thoroughly evaluated using scientific methods?

• A. Meta-analysis
• B. Systematic reviews
• C. Evidence-based
• D. Observational studies

Correct answer: C

Rationale: The correct answer is C, 'Evidence-based.' Evidence-based practices refer to medical practices that have been thoroughly evaluated and supported by scientific research. Meta-analysis (A) involves statistical analysis that combines the results of multiple studies. Systematic reviews (B) are comprehensive reviews that synthesize evidence from multiple studies. Observational studies (D) are research methods where researchers observe subjects in their natural environment.

5. 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.

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