Which of these sets of values is most significant to determining the patient's readiness for surgery? Red blood cell count, total protein, white blood cell count Hemoglobin and hematocrit, coagulation studies, electrolytes Urine protein, blood urea nitrogen (BUN), bilirubin

The most significant set of values for determining a patient's readiness for surgery includes: **Hemoglobin and hematocrit, coagulation studies, electrolytes** **Here's why:** 1. **Hemoglobin and Hematocrit:** These values assess the patient's oxygen-carrying capacity and overall blood volume. Low levels can indicate anemia, which may increase the risk of complications during and after surgery. 2. **Coagulation Studies:** Tests such as Prothrombin Time (PT), Activated Partial Thromboplastin Time (aPTT), and International Normalized Ratio (INR) evaluate the blood's ability to clot. Proper clotting is crucial to minimize bleeding risks during surgery. 3. **Electrolytes:** Maintaining electrolyte balance is essential for normal body functions, including nerve and muscle function. Imbalances can lead to complications like cardiac arrhythmias or neuromuscular issues during the perioperative period. While the other sets of values provide important information about a patient's overall health, the combination of hemoglobin and hematocrit, coagulation studies, and electrolytes directly impacts surgical outcomes and is thus most significant in assessing readiness for surgery. **Answer:** Hemoglobin and hematocrit, coagulation studies, electrolytes