Correct Answer: B

Rationale: The correct answer is B: Client's vaccination history. Before administering the hepatitis B vaccine, it is essential to verify the client's vaccination history to ensure they are due for the vaccine. This helps in preventing unnecessary vaccinations and ensures the appropriate timing and dosage. Option A, the client's allergy to eggs, is not directly related to administering the hepatitis B vaccine. Option C, the client's weight, and option D, the client's blood pressure, are not factors that need to be specifically verified before administering the hepatitis B vaccine.

Correct Answer: B

Rationale: The correct answer is B: 'Suppression of airway mucus production.' Methylprednisolone, a corticosteroid, is known to suppress airway mucus production. While corticosteroids can enhance the responsiveness of beta2 receptors, they are not directly involved in the suppression of these receptors (Choice A). Corticosteroids can lead to adverse effects such as bone loss, rather than fortification of bones (Choice C). They can also increase the risk of infections like candidiasis but do not directly suppress it (Choice D). Therefore, the most expected pharmacological action of methylprednisolone therapy is the suppression of airway mucus production.

Correct Answer: B

Rationale: The correct answer is B: 'Take the medication at the same time every day.' Clients should take digoxin at the same time each day to maintain consistent therapeutic levels, enhancing the drug's effectiveness and minimizing fluctuations in blood concentration. Choice A is incorrect because digoxin, as a medication, may actually help in controlling the heart rate. Choice C is incorrect as digoxin should never be stopped abruptly due to the risk of rebound effects and worsening of the condition. Choice D is unrelated to digoxin therapy, as it is more relevant to medications like potassium-sparing diuretics.

Correct Answer: A

Rationale: The correct instruction for a client prescribed ferrous sulfate for anemia is to take the medication on an empty stomach. This is because ferrous sulfate is best absorbed in an acidic environment, which is enhanced on an empty stomach. However, if the client experiences gastrointestinal side effects, they can take the medication with food. Choice B, notifying the provider if stool becomes dark green, is correct because dark or black stools are common with iron therapy and not a cause for concern. Choice C, decreasing dietary fiber intake, is incorrect as dietary fiber does not interfere with the absorption of ferrous sulfate. Choice D, taking prescribed antacids at the same time, is incorrect as antacids can decrease the absorption of ferrous sulfate.

Correct Answer: A

Rationale: The correct answer is A. The MMR vaccine is contraindicated in pregnant women due to the risk of fetal harm. It is recommended that women avoid becoming pregnant for at least 4 weeks after receiving the vaccine. Choice B, client allergy to strawberry, is not a contraindication for the MMR vaccine. Choice C, client history of genital herpes, is not a contraindication for the MMR vaccine. Choice D, the possibility of overseas travel in the next month, is not a contraindication for the MMR vaccine.