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.
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Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
A. The director of nurses may oversee the nursing staff but might not directly verify orders.
B. While the LPN/LVN may have specific responsibilities, verifying orders typically falls under the role of an RN with administrative responsibilities.
C. An administrative RN often verifies or reviews newly transcribed orders for accuracy and compliance with facility policies.
D. The unit secretary might assist with clerical tasks, but verifying orders is usually within the nursing scope.
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