19.Chris is a 28-year-old male who complains of lower back pain that began 3 days ago. The painis worse when he stands or bends, and it is somewhat relieved when he sits. The clinician performs the straight-leg raise test and it is negative. Plain film x-ray is positive. Which diagnosis is most likely?A.OsteoarthritisB.Spinal stenosisC.ScoliosisD.Muscle strainANS: D
PTS:120.A clinician has performed a synovial fluid analysis and the results are as follows: visual analysis: turbid and yellow, viscosity: decreased, 52,000 white blood cells (WBCs) per mm3, polymorphonuclear leukocytes (PMNs): 75%, protein: 5 g/dL. Which of the following conditions could this result be attributed to?
PTS:121.Normal estrogen function is important for preventing osteoporosis in both men and women. Estrogen works to prevent osteoporosis in which of the following ways?