Nursing Elites

1. What physiologic role does calcium play in the body?

• A. Blood clotting, transmission of nerve impulses, muscle contraction and relaxation
• B. Calcium homeostasis, structural integrity of heart muscle
• C. No known metabolic function, caries-preventing properties
• D. ATP energy release; metabolism of fats, carbohydrates, proteins; regulates acid-base balance.

Correct answer: A

Rationale: The correct answer is A: 'Blood clotting, transmission of nerve impulses, muscle contraction and relaxation.' Calcium plays a crucial role in various physiological functions such as blood clotting, transmission of nerve impulses, muscle contraction and relaxation, membrane permeability, and activation of certain enzymes. Choice B is incorrect because while calcium is involved in calcium homeostasis, it is not the only role it plays in the body. Choice C is incorrect as calcium indeed has several known metabolic functions, and it is not solely for preventing caries. Choice D is also incorrect as the functions mentioned are primarily carried out by other nutrients and not specifically by calcium.

2. A nurse is educating the parent of a preschool-age child about nutrition. Which is the best snack choice for the nurse to recommend to the parent?

• A. Fruit snacks
• B. Mini wheat bagel with peanut butter
• C. White toast with jelly
• D. Sports drink

Correct answer: B

Rationale: The best snack choice for a preschool-age child recommended by the nurse would be a mini wheat bagel with peanut butter. This option provides a good balance of carbohydrates, protein, and healthy fats, making it a more nutritious choice compared to the other options. Fruit snacks may contain added sugars and lack essential nutrients. White toast with jelly is high in simple carbohydrates and sugars, providing less sustained energy. Sports drinks are often high in sugar and not necessary for a preschool-age child's snack.

3. The purpose of chest percussion and vibration is to loosen secretions in the lungs. The difference between the procedures is:

• A. Percussion uses only one hand, while vibration uses both hands
• B. Percussion delivers cushioned blows to the chest with cupped palms, while vibration gently shakes secretions loose
• C. In both percussion and vibration, the hands are not on top of each other, and hand action is not in tune with the client's breath
• D. Percussion slaps the chest to loosen secretions, while vibration shakes the secretions along with the inhalation

Correct answer: D

Rationale: Chest percussion involves the use of rhythmic tapping to dislodge mucus from the lungs, facilitating its movement toward the larger airways where it can be expelled. This technique is particularly important in conditions where mucus retention is a significant risk factor for infection. The key difference between chest percussion and vibration is that percussion involves slapping the chest to loosen secretions, while vibration involves shaking the secretions along with the inhalation, aiding in moving the loosened secretions upwards for easier removal. Choices A, B, and C do not accurately describe the main difference between chest percussion and vibration, making them incorrect.

4. What is the most appropriate nutritional advice for a patient with hypertension?

• A. Increase salt intake
• B. Reduce fiber intake
• C. Increase potassium intake
• D. Increase sugar intake

Correct answer: C

Rationale: Increasing potassium intake can help manage blood pressure levels in patients with hypertension.

5. A nurse is teaching a group of clients who are at risk for heart disease about decreasing saturated fats in their diet. Which of the following fats should the nurse recommend the clients use when cooking?

• A. Palm oil
• B. Peanut oil
• C. Canola oil
• D. Stick margarine

Correct answer: C

Rationale: Canola oil is lower in saturated fats compared to palm oil, peanut oil, and stick margarine, making it a healthier option for clients at risk for heart disease. Palm oil is high in saturated fats, peanut oil has a moderate amount of saturated fats, and stick margarine is also high in saturated fats and trans fats, which are not heart-healthy choices.

Similar Questions