Correct Answer: B

Rationale: Filgrastim is a medication used to stimulate the production of neutrophils in patients with neutropenia. Neutrophils are a type of white blood cell that plays a crucial role in fighting off infections. Therefore, an increase in neutrophil count would indicate a therapeutic effect of filgrastim. The other options, such as erythrocyte count (red blood cells), lymphocyte count, and thrombocyte count (platelets), are not directly affected by filgrastim and would not indicate a therapeutic effect of this medication.

Correct Answer: B

Rationale: Ergotamine is used to treat migraine headaches by constricting blood vessels in the brain. Therefore, the correct answer is B. Choice A, Raynaud's phenomenon, is incorrect as ergotamine is not indicated for this condition. Choice C, Ulcerative colitis, is incorrect as ergotamine is not used to treat this gastrointestinal disorder. Choice D, Anemia, is incorrect as ergotamine is not prescribed for anemia.

Correct Answer: A

Rationale: The correct answer is A: Urine specific gravity of 1.035. A urine specific gravity greater than 1.030 indicates dehydration as the kidneys conserve water in response to dehydration. Choice B, oliguria, refers to decreased urine output, which can be a sign of dehydration but is not specific to it. Choice C, increased urine concentration, is a general term and does not directly indicate dehydration. Choice D, dry mucous membranes, can be a sign of dehydration but is not as specific as a urine specific gravity greater than 1.030.

Correct Answer: A

Rationale: The correct answer is A: Jaundice. Sulfasalazine can cause liver damage as a possible adverse effect, which can manifest as jaundice. Monitoring for jaundice is crucial to detect liver-related adverse effects early. Choices B, C, and D are incorrect. Constipation, oral candidiasis, and sedation are not typically associated with sulfasalazine use. Therefore, the nurse should focus on educating the client specifically about monitoring for jaundice.

Correct Answer: D

Rationale: Clients taking digoxin and furosemide are at risk for hypokalemia. Eating potassium-rich foods can help maintain normal potassium levels.