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 A
Explanation
A. Checking the Medication Administration Record (MAR) or electronic MAR (eMAR) is a priority to ensure continuity of care and administer medications as prescribed in a timely manner.
B. Reviewing the orders is important but may not be the immediate priority compared to ensuring the patient's medication needs are addressed.
C. Documenting the transfer in the medical record is essential but may be done after the initial assessment and administration of necessary medications.
D. Performing a head-to-toe assessment is important but typically comes after addressing immediate needs such as medication administration, especially if the patient has specific medication schedules.
Correct Answer is C
Explanation
A. A chocolate-covered ice cream bar is high in sugar and fat, lacking in nutritional value.
B. Popcorn and a juice box can be acceptable, but popcorn might not be suitable for younger children due to choking hazards, and juice boxes are often high in sugar.
C. Peanut butter on apple combines protein from peanut butter with vitamins and fiber from the apple, making it a healthier and more balanced snack choice.
D. Cookies and milk provide sugar and fat without many essential nutrients, not an ideal snack for everyday consumption.
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