You are following up on an anxious 80 y.o. woman who present…

You are following up on an anxious 80 y.o. woman who presented with multiple complaints. At your last visit 1 week ago, you performed a thorough examination and today you will review the test results with your patient.  The diagnostic tests include laboratory work, cardiac stress testing with echo, and PFT’s. When evaluating this woman and her test results, which one of the following is considered a normal finding for her age?