The nurse receives a report that a client's laboratory results show a left shift or an increase in circulating band neutrophils. What is the nurse's best action?

Choice A reason: Administering blood is an intervention for anemia or acute blood loss. A "left shift" in the white blood cell differential indicates a high demand for neutrophils, typically due to an acute bacterial infection. It is not an indicator of low hemoglobin or red blood cell volume, so blood products would not address the underlying issue. Choice B reason: IV fluids may be necessary if the patient is showing signs of dehydration or septic shock, but the nurse must first assess the clinical status of the patient. Jumping to fluid administration without confirming the patient's hemodynamic status (via vital signs) would be premature and does not represent the first step in the nursing process. Choice C reason: Increasing oxygen flow is an intervention for hypoxia. While a severe infection can lead to increased metabolic demand and respiratory distress, there is no evidence in the lab result of a left shift that the patient is currently hypoxic. Assessment of respiratory rate and oxygen saturation must precede any change in oxygen therapy. Choice D reason: A "left shift" refers to an increase in immature neutrophils (bands), which indicates that the bone marrow is releasing white cells prematurely to fight a severe infection. The nurse's first action should be to assess vital signs to check for systemic inflammatory response syndrome (SIRS) or sepsis, looking for fever, tachycardia, and tachypnea.