|Evidence Based Practice InfoBot|
Worsening low back pain J Fam Pract. July 2009 (Vol. 58, No. 7).
Chief Complaint: 5/10 dull lower back pain Age: 44-year-old Gender: man Note: He went to the emergency department (ED), where he reported worsening pain. Blood tests revealed a hemoglobin level of 9.8 g/dL with a hematocrit of 27.9%, serum blood urea nitrogen/creatinine ratio of 143/11.0 mg/dL, potassium of 6.5 mmol/L, calcium of 11.8 mg/dL, and phosphorus of 8.5 mg/dL. Urine protein was elevated at 88 mg/dL. A CT revealed no signs of obstructive uropathy to explain the patient's acute renal failure. Medications: nonsteroidal anti-inflammatory agents and an opiate