A nurse is preparing to administer 30 units of NPH and 10 units of regular insulin to a client. Which of the following actions should the nurse take?

• Fatigue: Fatigue is a universal symptom in all three conditions due to reduced oxygen-carrying capacity of the blood. This results from low hemoglobin levels or dysfunctional red blood cells, leading to tissue hypoxia and generalized weakness.
• Ferritin level: Ferritin reflects stored iron. A low ferritin level is a hallmark of iron deficiency anemia, indicating depleted iron stores. Sickle cell disease and pernicious anemia do not typically cause low ferritin unless there is coexisting iron deficiency from blood loss or poor intake.
• Vitamin B12 level: A low vitamin B12 level directly supports a diagnosis of pernicious anemia, which results from impaired B12 absorption due to lack of intrinsic factor. This finding is not characteristic of iron deficiency anemia or sickle cell disease.
• Orthostatic hypotension: This may occur in all three conditions due to decreased blood volume or impaired oxygenation. In iron deficiency and pernicious anemia, low hemoglobin reduces circulating oxygen, while in sickle cell disease, dehydration and anemia can contribute to drops in blood pressure when changing positions.

Rationale for Correct Choices:

• Oxygen saturation: The client's oxygen saturation is 94% on room air. While not critically low, given their reported shortness of breath and fatigue, this warrants follow-up. It could be indicative of the severity of their anemia impacting oxygen delivery.
• Blood pressure: The client shows signs of orthostatic hypotension, with a significant drop from 132/60 mm Hg (supine) to 102/50 mm Hg (standing). This change can cause dizziness, falls, and worsened fatigue, and it may be related to anemia or volume depletion that needs evaluation.
• Hematocrit: A hematocrit of 24% is critically low, indicating significant anemia. This aligns with the client’s symptoms of fatigue and dyspnea and requires prompt intervention to determine the underlying cause, such as iron or B12 deficiency.
• Activity level: The client reports shortness of breath with minimal exertion and difficulty keeping up with grandchildren. This functional decline reflects impaired oxygen delivery due to anemia and must be addressed as it affects quality of life and safety.

Rationale for Incorrect Choices:

• Pain level: The client reports no pain or discomfort at this time. While pain is common in rheumatoid arthritis, the current lack of pain does not require further assessment or intervention.
• Temperature: The client's temperature is 37°C (98.6°F), which is normal. There are no signs of infection or inflammation requiring follow-up based solely on this vital sign.
• Breath sounds: Bilateral clear breath sounds indicate that the lungs are not congested and there is no evidence of pulmonary pathology at this time. Therefore, this finding does not require follow-up.