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. Routine admissions under managed care plans might not require patients to be admitted several days before the procedure; often, it depends on the nature of the procedure or treatment.
B. Patients admitted under managed care plans usually require preapproval or authorization from the insurance company or managed care organization before admission for non-emergency procedures.
C. Payment of deductibles can vary based on the specific terms of the insurance plan, but it's not necessarily tied to the admission process under managed care plans.
D. Medicare is a government-sponsored health insurance program for individuals aged 65 and older or those with certain disabilities, but it's not directly related to the process of routine admission under managed care plans.
Correct Answer is A
Explanation
A. Dark-colored urine is a common sign of dehydration, indicating concentrated urine due to reduced water intake or excessive fluid loss.
B. Dehydration typically causes dry or parched skin rather than moist skin.
C. Distended neck veins are not typical findings associated with dehydration; instead, they might indicate other conditions like heart failure.
D. Dehydration tends to cause a drop in blood pressure rather than high blood pressure due to reduced fluid volume.
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