Một bệnh nhân ung thư hạch được biết đến là bài tiết 1,5 g protein trong nước tiểu mỗi ngày có một đánh giá que thăm âm tính với protein trong nước tiểu. Lý do cho sự không thống nhất dường như là (A) kích thước của protein bài tiết quá nhỏ để có thể chọn của các dải thử nghiệm | This page intentionally left blank. IX. DISORDERS OF THE KIDNEY AND URINARY TRACT QUESTIONS DIRECTIONS Each question below contains five suggested responses. Choose the one best response to each question. IX-1. A patient with lymphoma who is known to excrete g urinary protein per day has a negative dipstick evaluation for urinary protein. The reason for the seeming inconsistency is A the size of the excreted protein is too small to be picked up by the test strip B the urine is not concentrated enough C only heavy chain sequences are recognized by the test strip D Tamm-Horsfall protein blocks the reaction between the secreted protein and the test strip E dipsticks preferentially detect albumin compared with immunoglobulin because albumin is negatively charged IX-2. A 75-year-old female nursing home resident is brought to the emergency department because of increasing obtundation. She is found to communicate poorly. Brief physical examination reveals diminished skin turgor. Blood pressure is 100 60 pulse 120 respiratory rate 20 and temperature 37 C F . Blood tests reveal the following serum electrolytes sodium 160 mmol L potassium mmol L bicarbonate 30 mmol L chloride 110 mmol L. The most appropriate management at this time would include administration of 5 dextrose in A normal saline 100 mL h B normal saline solution 250 mL h C half normal saline 100 mL h D half normal saline 200 mL h E water 150 mL h IX-3. Laboratory evaluation of a 19-year-old man being worked up for polyuria and polydipsia yields the following results Serum electrolytes mmol L Na 144 K Cl- 107 hCo3- 25 BUN mmol L 18 mg dL Blood glucose mmol L 102 mg dL Urine electrolytes mmol L Na 28 K 32 Urine osmolality 195 mosmol kg water IX-3. Continued After 12 h of fluid deprivation body weight has fallen by 5 . Laboratory testing now reveals the following Serum electrolytes mmol L Na 150 K Cl- 109 hCo3- 25 BUN mmol L 20 mg dL Blood glucose mmol L 98 mg dL Urine .
