A nurse is caring for a client who is taking azathioprine to treat rheumatoid arthritis. Which of the following laboratory values indicates an adverse effect of this medication?

A. "Lie down for 1 hour after administering the medication.": This statement is not necessary for nasal cyanocobalamin administration. There is no need for the client to lie down for an extended period after administering the medication.
B. "Administer the medication into one nostril once per week.": This is the correct information. Nasal cyanocobalamin is typically administered once a week for the treatment of pernicious anemia. It's important for the nurse to emphasize the correct frequency and route of administration to ensure the effectiveness of the treatment.
C. "Plan to self-administer this medication for the next 6 months.": The duration of treatment may vary based on the healthcare provider's prescription. The nurse should instruct the client based on the specific instructions provided by the healthcare provider rather than a predetermined time frame.
D. "Use a nasal decongestant 15 minutes before the medication if you have a stuffy nose.": This statement is not a standard recommendation for nasal cyanocobalamin administration. If the client has concerns about a stuffy nose, they should consult with their healthcare provider rather than using a nasal decongestant without guidance.

A. "Take the medication with an antacid if it upsets your stomach."
Explanation: Antacids may interfere with the absorption of iron. It is generally recommended to take iron supplements on an empty stomach or with vitamin C-containing foods to enhance absorption.
B. "Stop taking the medication if your stools become green or black."
Explanation: Ferrous sulfate can cause stools to become dark green or black, which is a normal and expected side effect. However, excessive black, tarry stools may indicate gastrointestinal bleeding and should be reported to the healthcare provider.
C. "Drink the elixir using a straw to prevent staining your teeth."
Explanation: Ferrous sulfate elixir can stain the teeth. Using a straw helps bypass direct contact with the teeth, reducing the risk of staining.
D. "Increase your fiber intake to prevent constipation."
Explanation: Iron supplements, including ferrous sulfate, can cause constipation. Increasing fiber intake can help alleviate constipation.
E. "Increase your intake of dairy products to increase the absorption of this medication."
Explanation: Calcium-containing foods, such as dairy products, can inhibit the absorption of iron. It is advisable to take iron supplements separately from calcium-containing foods.