The nurse is aware that vitamin B12 is absorbed in the:
Duodenum
Stomach
Small intestine
Large intestine
The Correct Answer is C
A. The duodenum is the first part of the small intestine where a significant amount of digestion takes place, but vitamin B12 is primarily absorbed in the lower part of the small intestine, called the ileum.
B. The stomach plays a role in releasing intrinsic factor, which helps in the absorption of vitamin B12, but the actual absorption occurs in the small intestine.
C. Vitamin B12 absorption primarily occurs in the lower part of the small intestine (ileum), facilitated by intrinsic factors.
D. The large intestine primarily absorbs water and electrolytes; it is not a site for vitamin B12 absorption.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Patient valuables, such as jewelry, money, or personal items, are often small and easily misplaced during transfers due to their size and sometimes inadequate handling procedures.
B. Durable medical equipment, like walkers, is generally larger and easier to track and manage during transfers compared to small items like patient valuables.
C. Personal grooming items, while they may occasionally get misplaced, are typically larger and less prone to loss during transfers compared to smaller valuables.
D. Personal papers and magazines might also get lost, but they are usually larger and have a different handling process than smaller patient valuables, making them less commonly
misplaced during transfers.
Correct Answer is B
Explanation
A. Proteins and starches together are not represented as one-half of the MyPlate; they are grouped separately.
B. Half of the plate should be filled with fruits and vegetables, which provide vitamins, minerals, fiber, and antioxidants. The other half should be divided between grains and proteins, which provide carbohydrates, protein, iron, and B vitamins.
C. Dairy and fats are important but do not compose half of the MyPlate. Dairy is a separate food group on the plate.
D. Grains and starches are important but do not compose half of the plate according to the MyPlate plan.
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