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 D
Explanation
A. Sending valuables home with a family member might not be feasible or safe in an emergency situation.
B. Locking valuables in the narcotics cabinet is not appropriate; this cabinet is typically designated for medication storage, not personal items.
C. Placing valuables in the patient's closet doesn't ensure their security; it's not a designated secure area.
D. Using a valuables envelope and securing them in the agency safe ensures the security of the patient's belongings while they are hospitalized.

Correct Answer is A
Explanation
A. The descending colon is a part of the large intestine, specifically the section that runs downward on the left side of the abdomen.
B. The pancreas is a gland located behind the stomach that plays a role in digestion by secreting enzymes, but it is not a part of the large intestine.
C. The ureter is a tube that carries urine from the kidneys to the bladder, not part of the large intestine.
D. The pancreas was listed twice; it is not part of the large intestine but an organ of the digestive system.

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