A nurse is caring for a client who is receiving intravenous therapy and observes redness and inflammation along the vein. The nurse should identify this finding as which of the following complications of IV therapy?

A. Stroke volume: While stroke volume is an important parameter in assessing cardiac function, it may not directly guide the titration of nitroprusside infusion. Blood pressure is a more immediate indicator of the drug's effect on vasodilation.
B. Urine output: Nitroprusside primarily affects the vascular system and is not directly associated with urine output. Monitoring urine output is crucial in assessing renal function, but it is not the primary parameter for titrating a nitroprusside infusion.
C. Blood pressure (Correct Answer): Nitroprusside acts as a direct vasodilator, and its primary effect is on blood vessels, leading to a reduction in blood pressure. Therefore, monitoring blood pressure is essential to titrate the infusion to achieve the desired therapeutic effect.
D. Cardiac output: While nitroprusside's vasodilatory effect may influence cardiac output indirectly, blood pressure is a more immediate and specific parameter to guide the titration of the infusion. Nitroprusside is often titrated to reach a target blood pressure range in hypertensive emergencies.

A. INR (International Normalized Ratio): INR is a measure of blood clotting and is not directly affected by filgrastim, which stimulates the production of white blood cells. Monitoring INR is more relevant when assessing anticoagulant therapy.
B. Potassium level: Filgrastim does not directly influence potassium levels. Monitoring potassium is important for certain medications and conditions, but it is not the primary parameter to evaluate the effectiveness of filgrastim.
C. WBC count: Filgrastim (granulocyte colony-stimulating factor) is used to stimulate the production of white blood cells, specifically neutrophils. Monitoring the white blood cell count is crucial in evaluating the effectiveness of filgrastim treatment. An increase in the WBC count, particularly the neutrophil count, indicates a positive response to the medication.
D. BUN (Blood Urea Nitrogen): BUN is a measure of kidney function and is not directly influenced by filgrastim. While monitoring kidney function is important in general patient care, it is not the primary parameter to assess the effectiveness of filgrastim.