The nurse uses a chart to show an obese patient who is trying to lose weight by counting the calories that each gram of carbohydrate supplies _ calories.
9
4
5
6
The Correct Answer is B
A. 9 calories per gram is the energy yield for fats, not carbohydrates.
B. Carbohydrates provide approximately 4 calories per gram, which is the energy yield for this macronutrient.
C. 5 calories per gram is not the typical energy value for carbohydrates; it's closer to the value for proteins.
D. 6 calories per gram is not the energy yield for carbohydrates; it's closer to the value for alcohol.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Iron is a crucial component of hemoglobin in red blood cells, responsible for carrying oxygen throughout the body.
B. Magnesium is involved in various enzymatic reactions, nerve function, and muscle contractions, but it's not directly involved in oxygen transport.
C. Potassium plays a role in maintaining electrolyte balance and cell function, not in oxygen transport.
D. Phosphorus is essential for bone health, energy metabolism, and cell membrane formation but is not directly involved in oxygen transport.
Correct Answer is B
Explanation
A. Folic acid is mainly known for its role in preventing neural tube defects in pregnant women and supporting red blood cell production.
B. Omega-3 fatty acids, found in fish oil supplements, have shown benefits in promoting heart health by reducing the risk of cardiovascular diseases, improving lipid profiles, and supporting heart function.
C. Lutein is primarily associated with eye health, particularly in reducing the risk of age-related macular degeneration.
D. Vitamin D plays a role in bone health and immune function but isn't specifically targeted for heart health.
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