result in an increased incidence of urinary tract intection in the elderly, espe

Question

result in an increased incidence of urinary tract intection in the elderly, especially in women.18 CASE STUDY 34-1 A healthy 65-year-old man entered the hospital to have his appendix removed. Preoperative laboratory results are shown in Case Study Table 34-1.1. CASE STUDY TABLE 34-1.1 LABORATORY RESULTS REFERENCE RANGE 35-50 g/L 8-26 mg/dL TEST Albumin BUN Creatinine Serum osmolality Sodium RESULT 25 g/L 35 mg/dL 1.7 mg/dL 280 mOsm/kg 140 mmol/L 0.9-1.5 mg/d 275-295 mOsm/kg 135-145 mmol/L Question 1. What is the BUN/Creatinine ratio for this patient? 2. What do these data suggest? 3. Which test results support this conclusion? Immune System

Explanation / Answer

Q1. The BUN/creatinine ratio in this case is;

20.6: 1

Q2. The BUN/creatinine ratio, in this case, is slightly higher indicating a decrease in the flow of blood to the kidneys, due to congestive heart failure or dehydration.

Q3. The above results are based on the slightly higher BUN/creatinine ratio as all the other values are within range i.e. normal

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