A client is diagnosed with pernicious anemia. What should the nurse instruct is needed to absorb vitamin B12?
1. Hydrochloric acid
2. Chyme
3. Enzymes
4. Intrinsic factor
Answer: 4
1. Hydrochloric acid is produced by parietal cells in the stomach and aids in mechanical digestion of foods.
2. Chyme is the result of the mixing of food with the gastric juices.
3. Enzymes are secreted in the pancreas and enter into the small intestine.
4. In order for vitamin B12 to be absorbed, the parietal cells of the stomach must produce intrinsic factor.
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