Ventilation is only at 65 percent of its maximum when cardiac output is at 90 percent of its maximum. what does this strongly suggest?
a. maximal oxygen consumption is limited by the cardiovascular system, not the pulmonary system.
b. skeletal muscles require more blood than oxygen.
c. the lungs are more efficient at performing their job than the heart.

The nurse in a gynecology clinic is completing preoperative teaching for a patient scheduled for an abdominal hysterectomy next week. the patient states that she is currently taking 325 mg of aspirin daily for chronic joint pain, along with multivitamin. the patient has type 2 diabetes; she closely monitors her blood glucose levels. currently she is taking an oral hypoglycemic agent. the nurse advises her to ask the anesthesiologist whether she should take this medication the morning of surgery. q1. the nurse instructs the patient to stop taking the aspirin. what is the rationale for this action. q2. why is it important to assess the patient of use of herbal products prior to surgery. q3. the patient asks how surgery could affect her blood glucose; how should the nurse respond?