A client is diagnosed with megaloblastic anemia caused by vitamin B12 deficiency. The physician begins the client on cyanocobalamin (Betalin-12), 100mcg IM daily. Which substance influences Vitamin B12 absorption?

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Question 1 of 5

A client is diagnosed with megaloblastic anemia caused by vitamin B12 deficiency. The physician begins the client on cyanocobalamin (Betalin-12), 100mcg IM daily. Which substance influences Vitamin B12 absorption?

Correct Answer: A

Rationale: Step 1: Vitamin B12 is absorbed in the small intestine with the help of intrinsic factor produced by parietal cells in the stomach. Step 2: Intrinsic factor binds to vitamin B12, forming a complex that is then absorbed in the ileum. Step 3: If intrinsic factor is lacking (as seen in pernicious anemia), vitamin B12 absorption is impaired, leading to megaloblastic anemia. Step 4: Administering cyanocobalamin bypasses the need for intrinsic factor. Step 5: Thus, intrinsic factor influences Vitamin B12 absorption. Other choices (B, C, D) do not play a direct role in Vitamin B12 absorption.

Question 2 of 5

After receiving a dose of penicillin, a client develops dyspnea and hypotension. The nurse suspects the client is experiencing anaphylactic shock. What should the nurse do first?

Correct Answer: B

Rationale: The correct answer is B. Administering epinephrine is the first-line treatment for anaphylactic shock to reverse hypotension and bronchoconstriction. Intubation may be necessary if airway compromise occurs despite epinephrine. Paging an anesthesiologist (A) is not the priority. Administering penicillin antidote (C) is not indicated in anaphylaxis. Inserting a urinary catheter and infusing IV fluids (D) may be necessary later but not the priority in managing anaphylactic shock.

Question 3 of 5

A client is diagnosed with rheumatoid arthritis, an autoimmune disorder. When teaching the client and family about autoimmune disorders, the nurse should provide which information?

Correct Answer: C

Rationale: Correct Answer: C - Autoimmune disorders include connective tissue (collagen) disorders. Rationale: Autoimmune disorders involve the immune system mistakenly attacking healthy cells and tissues in the body, which can lead to various conditions, including connective tissue disorders like rheumatoid arthritis. Providing this information to the client and family is crucial for understanding the nature of autoimmune disorders and the potential impact on the body. Summary of other choices: A: False-negative or false-positive serologic tests can occur in autoimmune disorders, so this statement is not specific enough to be the most appropriate information to provide. B: Advanced medical interventions can manage symptoms but not cure autoimmune disorders, making this statement inaccurate and misleading. D: Autoimmune disorders can present with a wide range of symptoms and can be challenging to diagnose, but this statement does not address the specific link between autoimmune disorders and connective tissue disorders.

Question 4 of 5

Which iron-rich foods should the nurse encourage an anemic client requiring iron therapy to eat?

Correct Answer: D

Rationale: The correct answer is D (Lamb and peaches) because lamb is a good source of heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based foods. Peaches are high in vitamin C, which enhances iron absorption. Shrimp and tomatoes (A) have some iron but are not as rich in iron as lamb. Cheese and bananas (B) are not significant sources of iron. Lobster and squash (C) also do not provide as much iron as lamb. Overall, the combination of heme iron from lamb and vitamin C from peaches makes them the most suitable choices for an anemic client requiring iron therapy.

Question 5 of 5

Which action by the nurse is appropriate?

Correct Answer: A

Rationale: The correct answer is A because observing the patient for abnormal bleeding is an appropriate action to monitor for potential complications of warfarin therapy. This aligns with the nursing role in assessing and monitoring patient responses to treatment. B is incorrect as increasing warfarin dose without physician order can lead to adverse effects. C is incorrect as altering the dose without medical advice can be dangerous. D is incorrect as administering Vitamin K would counteract the effects of warfarin, which is used to prevent blood clotting.

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