Nursing Elites

1. Which mineral is a principal component of cell membranes?

• A. phosphorus
• B. magnesium
• C. iron
• D. iodine

Correct answer: A

Rationale: Phosphorus is the correct answer. It is a key component of cell membranes, being part of the phospholipid bilayer that provides structure and controls the movement of substances in and out of cells. Magnesium, iron, and iodine do not serve as principal components of cell membranes. Magnesium is involved in various enzymatic reactions, iron is essential for oxygen transport, and iodine plays a role in thyroid hormone synthesis.

2. Which condition is an example of a potential cause of gastritis?

• A. bile reflux
• B. low salt intake
• C. hypophosphatasia
• D. gallstones

Correct answer: A

Rationale: Bile reflux is a potential cause of gastritis as it can irritate the stomach lining when bile backs up into the stomach. Choices B, C, and D do not directly cause gastritis. Low salt intake is not a common cause of gastritis. Hypophosphatasia is a rare genetic disorder affecting bone development, not the stomach. Gallstones, while related to the gallbladder, are not a direct cause of gastritis.

3. What is the primary function of antioxidants in the diet?

• A. Provide energy
• B. Support muscle growth
• C. Neutralize free radicals
• D. Increase blood sugar

Correct answer: C

Rationale: The primary function of antioxidants in the diet is to neutralize free radicals. Free radicals can cause cellular damage, leading to various chronic diseases. Antioxidants help combat this oxidative stress by neutralizing free radicals. Choices A, B, and D are incorrect because antioxidants do not provide energy, support muscle growth, or increase blood sugar; their main role is in combating oxidative stress.

4. During which step of the nursing process does the nurse analyze data related to the patient's health status?

• A. Assessment
• B. Implementation
• C. Diagnosis
• D. Evaluation

Correct answer: A

Rationale: The correct answer is 'Assessment.' During the assessment phase of the nursing process, the nurse collects and analyzes data related to the patient's health status. This involves gathering information through various means such as patient interviews, physical examinations, and reviewing medical records. Choice B, 'Implementation,' refers to the phase where the nurse carries out the planned interventions. Choices C and D, 'Diagnosis' and 'Evaluation,' come after the assessment phase in the nursing process.

5. A nurse is planning to teach a client about a low-potassium diet. Which of the following foods should the nurse instruct the client to avoid?

• A. Butter
• B. Poultry
• C. Yogurt
• D. Orange juice

Correct answer: D

Rationale: Orange juice is high in potassium and should be avoided in a low-potassium diet. Butter, poultry, and yogurt are low-potassium food choices and can be included in a low-potassium diet. Poultry is a good source of lean protein, yogurt is a good source of calcium and protein, and butter is low in potassium. Therefore, the nurse should instruct the client to avoid orange juice as it is high in potassium, which is not suitable for a low-potassium diet.

Similar Questions