A nurse is assessing a client who has flail chest. Which of the following findings should the nurse expect?

A. Calcium level of 10.0 mg/dL (9.0 to 10.5 mg/dL): The calcium level here is normal, and insulin therapy does not directly affect calcium levels. Therefore, this is not an adverse outcome related to insulin administration.

B. Serum sodium 138 mEq/L (136 to 145 mEq/L): The sodium level is within normal range. Insulin therapy does not typically cause major shifts in sodium, so this is not a concern.

C. Serum potassium 4.8 mEq/L (3.5 to 5.0 mEq/L): The potassium level here is also within normal range. Insulin therapy is often used to lower potassium levels, so this result does not suggest an adverse effect.

D. Serum glucose 58 mg/dL (74 to 106 mg/dL): This indicates hypoglycemia, which is a well-known adverse effect of insulin therapy. When insulin is administered, especially in the context of treating hyperkalemia, it can lower blood glucose levels to dangerously low levels, leading to hypoglycemia.

A. Thoracentesis: Thoracentesis may be ordered if there is suspected pleural effusion or hemothorax following thoracic trauma. It allows for both diagnostic and therapeutic removal of fluid or blood from the pleural space and helps assess the extent of internal injury.
B. Ultrasound: Ultrasound is a non-invasive tool used to quickly assess thoracic structures such as the pleura and pericardium. It helps detect hemothorax, pneumothorax, or pericardial effusion, and is commonly used in emergency settings for rapid diagnosis.
C. Focused assessment with sonography in trauma (FAST): FAST is a rapid bedside ultrasound exam used to detect free fluid (blood) in the thoracic or abdominal cavity. In trauma cases, it helps quickly identify life-threatening internal bleeding or organ injury, making it a critical diagnostic tool.
D. Chest x-ray: A chest x-ray is a standard imaging technique used to evaluate thoracic injuries. It can reveal fractures, pneumothorax, hemothorax, and other abnormalities in the chest cavity, providing a clear view of the extent of injury.
E. Pleural cavity decompression via needle aspiration: Needle aspiration is a therapeutic procedure rather than a diagnostic tool. It is used in emergencies to relieve a tension pneumothorax, not to assess or diagnose thoracic injury. Therefore, it is not anticipated as a diagnostic measure.