Correct Answer: B

Rationale: The correct advice for a patient starting rifampin is to expect orange-red discoloration of body fluids. Rifampin can cause harmless orange-red discoloration of body fluids, which may include urine, sweat, saliva, and tears. It is important for the patient to be aware of this side effect as it can stain clothing and contact lenses. Limiting intake of green leafy vegetables is not necessary with rifampin. Avoiding exposure to sunlight is more commonly associated with other medications like tetracyclines. Taking rifampin with antacids is not recommended as antacids can reduce the absorption of rifampin.

Correct Answer: B

Rationale: Clients should continue taking insulin and monitor their blood glucose levels closely, even if they are not eating normally.

Correct Answer: C

Rationale: Omeprazole is best taken before meals for optimal effectiveness in reducing stomach acid production and promoting ulcer healing. Taking it before meals allows the medication to act on the proton pumps before food intake triggers acid production, thereby maximizing its therapeutic benefits.

Correct Answer: B

Rationale: The primary goal of care for a client with esophageal varices secondary to liver cirrhosis is to control bleeding. Esophageal varices are fragile, enlarged veins in the esophagus that can rupture and lead to life-threatening bleeding. Controlling bleeding is crucial to prevent severe complications and ensure the client's safety and well-being.

Correct Answer: A

Rationale: Patients prescribed methotrexate should be advised to take folic acid supplements as prescribed. Methotrexate can deplete folic acid levels, leading to side effects. By taking folic acid supplements as directed, the patient can reduce the risk of experiencing adverse effects associated with methotrexate therapy. It is important to note that the effects of methotrexate may not be immediate, so realistic expectations should be set with the patient. Alcohol should be avoided while taking methotrexate due to potential interactions and increased risk of liver toxicity. There is no specific recommendation to limit fluid intake to 1 liter per day in relation to methotrexate therapy.