1. The liver contains a large amount of blood (a water-like substance) but is not completely liquid. For this reason, on ultrasound the liver appears to be: Dark gray 2. Which statement is correct about fluoroquinolones? fluoroquinolones are effective treatment for urinary tract infections and pyelonephritis 3. A 74-year-old man presents to your office for a routine He has no present complaint His medical history is significant for right knee osteoarthritis He takes naproxen occasionally, to relieve knee pain. He does not smoke or consume alcohol His BP is 165/75 mm Hg and PR is 70/min. The physical examination showed a mild systolic ejection type murmur at the base of the heat to the right. An EKG revealed left ventricular hypertrophy and secondary ST segment and T wave change Moderate left ventricular hypertrophy, without any flow abnormalities, was demonstrated on echocardiography. The ejection fraction was 60%. What is the most probable cause of hypertension in this patient? Increased Cardiac output 4. A pregnant patient asks the Nurse Practitioner what over-the-counter medication she can take for recurring headaches. The nurse should recommend Tylenol