A nurse is collecting data from a client who reports nausea and has vomited clear emesis. Which of the following medications should the nurse administer?

A. Hemoglobin levels. Epoetin alfa stimulates erythropoiesis (red blood cell production) in clients with chronic renal failure, where natural erythropoietin production is impaired. The therapeutic effect of epoetin alfa is measured by monitoring hemoglobin (Hgb) levels to ensure adequate response without exceeding safe limits. Target Hgb levels should not exceed 11 g/dL, as higher levels increase the risk of thromboembolic events and hypertension.

B. Iron levels. While iron is necessary for red blood cell production, epoetin alfa does not directly affect iron levels. However, iron supplementation may be required if iron deficiency is present, as inadequate iron stores can limit the effectiveness of epoetin alfa therapy.

C. Platelet count. Epoetin alfa primarily affects red blood cell production and has no direct effect on platelet levels. Although polycythemia (excess red blood cells) can increase the risk of clot formation, platelet count is not the primary indicator of epoetin alfa’s therapeutic effects.

D. White blood cell count. Epoetin alfa does not impact white blood cell (WBC) production. Leukocyte production is regulated by different growth factors, and WBC monitoring is more relevant for conditions such as infections, chemotherapy-induced neutropenia, or bone marrow disorders.

A. "This is an expected adverse effect of the medication." Rifampin commonly causes red-orange discoloration of bodily fluids, including saliva, tears, urine, and sweat. This occurs due to the drug's excretion and is harmless. It does not indicate internal bleeding or organ dysfunction. Clients should be educated about this side effect in advance to prevent alarm and unnecessary discontinuation of the medication, as adherence to tuberculosis treatment is crucial.

B. "Stop taking the medication. You are having an allergic reaction." The red discoloration caused by rifampin is a known side effect, not an allergic reaction. A true allergic response would include symptoms such as rash, itching, swelling, or difficulty breathing. Stopping rifampin without medical advice could disrupt tuberculosis treatment, leading to drug resistance or treatment failure, making this an inappropriate recommendation.

C. "This condition will only last a couple of days." The discoloration of bodily fluids persists throughout the duration of rifampin therapy. Tuberculosis treatment can last several months, so the client should expect this effect to continue as long as they are taking the medication. Providing incorrect information may cause the client to worry unnecessarily when the discoloration does not resolve quickly.

D. "Taking the medication with red meat will cause this adverse effect." The discoloration is due to rifampin’s chemical properties and metabolism, not dietary intake. Red-colored foods, such as red meat or berries, do not influence this effect. Providing inaccurate dietary information may lead to unnecessary dietary restrictions, which are not needed for managing this side effect.