A nurse is assisting with teaching a class about minerals. Which of the following minerals is needed for the transport of oxygen?
Iron
Magnesium
Potassium
Phosphorus
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
A. Peanut butter does contain some fiber but typically in lesser amounts compared to other sources like whole grains or fruits.
B. Kidney beans are excellent sources of fiber, aiding in digestive health and preventing constipation.
C. Whole wheat bread, particularly if it's whole grain, is a good source of dietary fiber beneficial for relieving constipation.
D. Lean turkey is a protein source and doesn’t contain significant amounts of fiber.
E. Strawberries are high in fiber and can aid in improving bowel movements due to their fiber content.
Correct Answer is A
Explanation
A. Chronic alcohol use can impair the absorption and utilization of several vitamins, including B vitamins, leading to deficiencies.
B. Cystic fibrosis primarily affects the digestive system but is not directly associated with vitamin B deficiencies.
C. Phenytoin, an antiseizure medication, may interfere with vitamin D metabolism but is not strongly associated with vitamin B deficiencies.
D. Rifampin, an antibiotic used for tuberculosis, may interfere with the absorption of some nutrients, but it's not a primary concern for causing vitamin B deficiencies.
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