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 C
Explanation
A. Mushrooms are used in Asian cuisine but are not particularly known as a significant source of protein.
B. Bamboo shoots are a common vegetable used in Asian dishes but do not contain substantial protein content.
C. Soybeans are a staple in Asian diets and are renowned for being a high-quality plant-based protein source.
D. Rice is a staple carbohydrate in many Asian cuisines but is not a significant source of protein.
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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