Which statement is true regarding routine preoperative evaluation for major surgery?

Which statement is true regarding routine preoperative evaluation for major surgery?

• A. Chest radiograph is routinely required for all preoperative evaluations.
• B. Electrocardiography is routinely required for all preoperative evaluations.
• C. There is no need for preoperative laboratory testing.
• D. All major surgery patients should have CBC and renal function testing.

Answer: (D)

For major surgery, getting baseline laboratory information is essential to uncover issues that could affect anesthesia and recovery. A complete blood count shows anemia, infection, and platelet status, all of which can influence perioperative planning such as transfusion needs and bleeding risk. Renal function testing (usually via creatinine or eGFR) helps assess kidney reserve, guides dosing of medications cleared by the kidneys, and flags risk for perioperative kidney injury. Knowing these results in advance allows optimization before surgery and informs decisions about fluids, medications, and monitoring. Other preoperative tests are not universally required for every patient. Chest radiographs are not routinely needed for all individuals and are typically ordered based on age, cardiopulmonary symptoms, or specific risk factors. Similarly, an electrocardiogram is not mandated for everyone; it’s usually reserved for patients with cardiac history or high-risk features, depending on the procedure. The idea that no laboratory testing is needed before major surgery isn’t accurate, because having baseline CBC and renal function helps manage the patient safely through the operative and postoperative period.

For major surgery, getting baseline laboratory information is essential to uncover issues that could affect anesthesia and recovery. A complete blood count shows anemia, infection, and platelet status, all of which can influence perioperative planning such as transfusion needs and bleeding risk. Renal function testing (usually via creatinine or eGFR) helps assess kidney reserve, guides dosing of medications cleared by the kidneys, and flags risk for perioperative kidney injury. Knowing these results in advance allows optimization before surgery and informs decisions about fluids, medications, and monitoring.

Other preoperative tests are not universally required for every patient. Chest radiographs are not routinely needed for all individuals and are typically ordered based on age, cardiopulmonary symptoms, or specific risk factors. Similarly, an electrocardiogram is not mandated for everyone; it’s usually reserved for patients with cardiac history or high-risk features, depending on the procedure. The idea that no laboratory testing is needed before major surgery isn’t accurate, because having baseline CBC and renal function helps manage the patient safely through the operative and postoperative period.