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. Assisting the patient to get dressed might be part of the LPN/LVN's role or a nursing assistant's role but not typically a task performed by a registered nurse during the discharge process.
B. Packing the patient's personal belongings could also be done by the patient or their family, or it might be assisted by nursing staff, but it's not usually a specific responsibility of the registered nurse during discharge.
C. Writing the discharge instructions, which include medication schedules, follow-up care, dietary guidelines, and other critical information, is typically the responsibility of the registered nurse.
D. Accompanying the patient to the acute care facility entrance might be a part of the overall discharge process but is not a task specifically assigned to the registered nurse.
Correct Answer is B
Explanation
A. Lactose intolerance is more related to the absence of the enzyme lactase, which breaks down lactose (milk sugar) and can occur in individuals regardless of their dietary choices.
B. Vegan diets may lack sufficient intake of absorbable iron, as plant-based sources of iron (non-heme iron) are not as readily absorbed by the body compared to heme iron found in animal products. This can put vegans at a higher risk of iron deficiency.
C. Diabetes risk is influenced by various factors, including genetics and lifestyle, rather than specifically by following a vegan diet.
D. Pneumonia risk is not directly associated with following a vegan diet but can be influenced by overall health, immune function, and exposure to pathogens.
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