A nurse is reviewing surgical screening lab work with a client who has arrived for an elective procedure. During which of the following phases is this task performed?

Choice A rationale Perioperative is a broad, umbrella term that encompasses the entire surgical experience, including the preoperative, intraoperative, and postoperative phases. While the task of reviewing lab work occurs within the perioperative period, it is not the most specific phase for this activity. Using this term does not help distinguish when the screening occurs. Professional nursing standards require more specific categorization of tasks to ensure that safety checks, like lab reviews, are completed before anesthesia. Choice B rationale The preoperative phase begins when the decision for surgery is made and ends when the patient is transferred to the operating room table. Reviewing surgical screening labs, such as hemoglobin, electrolytes, and coagulation studies, is a critical safety intervention during this phase. This ensures the client is physiologically stable and identifies potential risks, like anemia or hypokalemia, before the procedure begins. Normal potassium is 3.5 to 5.0 mEq/L and normal hemoglobin is 12 to 18 g/dL. Choice C rationale The intraoperative phase begins when the patient is transferred onto the operating room table and ends when they are admitted to the post-anesthesia care unit. During this time, the focus is on anesthesia maintenance, surgical site sterility, and physiological monitoring. While labs might be drawn during surgery in an emergency, the routine review of elective screening lab work must happen before this stage to prevent avoidable complications or the cancellation of the surgery after anesthesia induction. Choice D rationale The postoperative phase begins with the admission of the patient to the recovery area and continues until follow-up evaluation in the clinical setting or at home. Reviewing initial screening labs during this phase would be late and ineffective for preventing surgical complications. Postoperative lab reviews focus on assessing the impact of the surgery, such as blood loss or fluid shifts, rather than screening for elective readiness. This phase is for recovery, monitoring, and discharge planning.