Question

Urinalysis Case 6-5 Sean F., a 25-year-old man, was brought to the emergency room with severe crush injuries sustained in a car accident. He had a broken pelvis and right femur and numerous abrasions and contusions. A routine urinalysis was ordered as part of the regular preoperative blood work. (sce Table 6-5). Table 6-5 Urinalysis and Chemistry Urinalysis Sean F. Reference Range Macroscopic Color Appearance Specific gravity Brown Clear Colorless to amber Clear 1.001-1.035 5-7 1.013 6.0 pH Nes Protein Glucose Ketones Bilirubin Blood Urobilinogen Nitrite Leukocyte esterase Neg Neg Neg Neg Neg Neg Neg Normal Neg Neg Normal Neg Neg Microscopic WBCs RBCs Epithelial Cells 0-5/HPF 0-2/HPF Few to moderate Casts Few-hyaline 0-3/HPF 0-1/HPF Few squamous/HPF Few renal epithelial/HPF 0-1 hyaline/LPF 0-1 granular/LPF Neg Chemistry Sean F. 170,000 IU/L) 22,500 IU/L Bacteria None T Creatine kinase Lactate dehydrogenase 1 Reference Range 24-170 IU/L 91-192 IU/L Questions 2. What two substances can give a positive reagent strip for blood and negative microscopic finding?

Answer 1

3. The two substances that can give a positive reagent strip for blood negative microscopic findings is protein and blood

4. The most probable explanation for the positive blood reagent strip reaction is presence of blood 3+

5. Pathophysiology of bladder trauma :-

If the pelvis is hit with a force great enough to break the pelvis bone ,the bladder gets I jured even if it's empty .

6. Confirmation of diagnosis by putting a tube ( catheter ) into the bladder and taking X-rays.